web/formfields.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Mon, 15 Feb 2010 17:47:50 +0100
branchstable
changeset 4585 912aba7e6400
parent 4583 356f08325072
child 4628 2f23148d0870
permissions -rw-r--r--
[inlined formos] don't pop attributes from kwargs, so they end-up in cw_extra_kwargs which is then passed to the edition form
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"""Fields are used to control what's displayed in forms. It makes the link
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between something to edit and its display in the form. Actual display is handled
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by a widget associated to the field.
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:organization: Logilab
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:copyright: 2009-2010 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
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:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
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:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
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"""
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__docformat__ = "restructuredtext en"
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from warnings import warn
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from datetime import datetime
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from logilab.mtconverter import xml_escape
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from logilab.common.date import ustrftime
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from logilab.common.decorators import cached
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from yams.schema import KNOWN_METAATTRIBUTES
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from yams.constraints import (SizeConstraint, StaticVocabularyConstraint,
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                              FormatConstraint)
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from cubicweb import Binary, tags, uilib
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from cubicweb.web import INTERNAL_FIELD_VALUE, ProcessFormError, eid_param, \
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     formwidgets as fw
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class UnmodifiedField(Exception):
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    """raise this when a field has not actually been edited and you want to skip
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    it
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    """
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def vocab_sort(vocab):
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    """sort vocabulary, considering option groups"""
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    result = []
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    partresult = []
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    for label, value in vocab:
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        if value is None: # opt group start
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            if partresult:
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                result += sorted(partresult)
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                partresult = []
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            result.append( (label, value) )
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        else:
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            partresult.append( (label, value) )
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    result += sorted(partresult)
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    return result
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_MARKER = object()
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class Field(object):
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    """This class is the abstract base class for all fields. It hold a bunch
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    of attributes which may be used for fine control of the behaviour of a
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    concret field.
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    All the attributes described below have sensible default value which may be
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    overriden by value given to field's constructor.
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    :name:
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       name of the field (basestring), should be unique in a form.
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    :id:
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       dom identifier (default to the same value as `name`), should be unique in
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       a form.
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    :label:
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       label of the field (default to the same value as `name`).
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    :help:
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       help message about this field.
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    :widget:
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       widget associated to the field. Each field class has a default widget
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       class which may be overriden per instance.
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    :required:
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       bool flag telling if the field is required or not.
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    :value:
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       field's value, used when no value specified by other means. XXX explain
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    :choices:
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       static vocabulary for this field. May be a list of values or a list of
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       (label, value) tuples if specified.
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    :sort:
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       bool flag telling if the vocabulary (either static vocabulary specified
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       in `choices` or dynamic vocabulary fetched from the form) should be
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       sorted on label.
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    :internationalizable:
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       bool flag telling if the vocabulary labels should be translated using the
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       current request language.
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    :eidparam:
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       bool flag telling if this field is linked to a specific entity
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    :role:
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       when the field is linked to an entity attribute or relation, tells the
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       role of the entity in the relation (eg 'subject' or 'object')
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    :fieldset:
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       optional fieldset to which this field belongs to
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    :order:
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       key used by automatic forms to sort fields
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    """
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    # default widget associated to this class of fields. May be overriden per
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    # instance
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    widget = fw.TextInput
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    # does this field requires a multipart form
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    needs_multipart = False
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    # class attribute used for ordering of fields in a form
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    __creation_rank = 0
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    eidparam = False
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    role = None
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    id = None
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    help = None
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    required = False
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    choices = None
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    sort = True
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    internationalizable = False
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    fieldset = None
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   113
    order = None
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   114
    value = _MARKER
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   115
    fallback_on_none_attribute = False
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   116
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   117
    def __init__(self, name=None, label=_MARKER, widget=None, **kwargs):
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   118
        for key, val in kwargs.items():
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   119
            if key == 'initial':
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                warn('[3.6] use value instead of initial', DeprecationWarning,
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   121
                     stacklevel=3)
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   122
                key = 'value'
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   123
            assert hasattr(self.__class__, key) and not key[0] == '_', key
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   124
            setattr(self, key, val)
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   125
        self.name = name
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   126
        if label is _MARKER:
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   127
            label = name or _MARKER
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   128
        self.label = label
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   129
        # has to be done after other attributes initialization
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   130
        self.init_widget(widget)
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   131
        # ordering number for this field instance
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   132
        self.creation_rank = Field.__creation_rank
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        Field.__creation_rank += 1
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   134
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    def __unicode__(self):
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   136
        return u'<%s name=%r eidparam=%s role=%r id=%r value=%r visible=%r @%x>' % (
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   137
            self.__class__.__name__, self.name, self.eidparam, self.role,
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   138
            self.id, self.value, self.is_visible(), id(self))
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   140
    def __repr__(self):
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   141
        return self.__unicode__().encode('utf-8')
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   142
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   143
    def init_widget(self, widget):
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   144
        if widget is not None:
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   145
            self.widget = widget
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a7ea618e5478 don't set select widget when a vocabulary widget is already specified on the field class
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   146
        elif self.choices and not self.widget.vocabulary_widget:
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   147
            self.widget = fw.Select()
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   148
        if isinstance(self.widget, type):
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   149
            self.widget = self.widget()
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   150
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   151
    def set_name(self, name):
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   152
        """automatically set .label when name is set"""
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        assert name
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   154
        self.name = name
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   155
        if self.label is _MARKER:
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   156
            self.label = name
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   157
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   158
    def is_visible(self):
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   159
        """return true if the field is not an hidden field"""
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   160
        return not isinstance(self.widget, fw.HiddenInput)
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   161
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   162
    def actual_fields(self, form):
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   163
        """return actual fields composing this field in case of a compound
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   164
        field, usually simply return self
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   165
        """
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   166
        yield self
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   167
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   168
    def format_value(self, req, value):
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   169
        """return value suitable for display where value may be a list or tuple
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   170
        of values
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   171
        """
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   172
        if isinstance(value, (list, tuple)):
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   173
            return [self.format_single_value(req, val) for val in value]
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   174
        return self.format_single_value(req, value)
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   175
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   176
    def format_single_value(self, req, value):
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   177
        """return value suitable for display"""
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   178
        if value is None or value is False:
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   179
            return u''
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   180
        if value is True:
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   181
            return u'1'
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   182
        return unicode(value)
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   183
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   184
    def get_widget(self, form):
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   185
        """return the widget instance associated to this field"""
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   186
        return self.widget
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   187
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   188
    # cached is necessary else we get some pb on entity creation : entity.eid is
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   189
    # modified from creation mark (eg 'X') to its actual eid (eg 123), and then
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   190
    # `field.input_name()` won't return the right key anymore if not cached
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   191
    # (first call to input_name done *before* eventual eid affectation).
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   192
    @cached
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   193
    def input_name(self, form, suffix=None):
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   194
        """return 'qualified name' for this field"""
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   195
        name = self.role_name()
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   196
        if suffix is not None:
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   197
            name += suffix
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   198
        if self.eidparam:
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diff changeset
   199
            return eid_param(name, form.edited_entity.eid)
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   200
        return name
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   201
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   202
    def role_name(self):
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   203
        """return <field.name>-<field.role> if role is specified, else field.name"""
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   204
        if self.role is not None:
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   205
            return '%s-%s' % (self.name, self.role)
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   206
        return self.name
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diff changeset
   207
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   208
    def dom_id(self, form, suffix=None):
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   209
        """return an html dom identifier for this field"""
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   210
        id = self.id or self.role_name()
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diff changeset
   211
        if suffix is not None:
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diff changeset
   212
            id += suffix
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   213
        if self.eidparam:
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   214
            return eid_param(id, form.edited_entity.eid)
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diff changeset
   215
        return id
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diff changeset
   216
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   217
    def typed_value(self, form, load_bytes=False):
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   218
        if self.eidparam and self.role is not None:
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            entity = form.edited_entity
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            if form._cw.vreg.schema.rschema(self.name).final:
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                if entity.has_eid() or self.name in entity:
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                    value = getattr(entity, self.name)
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   223
                    if value is not None or not self.fallback_on_none_attribute:
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                        return value
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   225
            elif entity.has_eid() or entity.relation_cached(self.name, self.role):
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                value = [r[0] for r in entity.related(self.name, self.role)]
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                if value or not self.fallback_on_none_attribute:
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   228
                    return value
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        return self.initial_typed_value(form, load_bytes)
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    def initial_typed_value(self, form, load_bytes):
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        if self.value is not _MARKER:
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            if callable(self.value):
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                return self.value(form)
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            return self.value
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        formattr = '%s_%s_default' % (self.role, self.name)
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   237
        if hasattr(form, formattr):
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            warn('[3.6] %s.%s deprecated, use field.value' % (
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diff changeset
   239
                form.__class__.__name__, formattr), DeprecationWarning)
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   240
            return getattr(form, formattr)()
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   241
        if self.eidparam and self.role is not None:
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   242
            if form._cw.vreg.schema.rschema(self.name).final:
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   243
                return form.edited_entity.e_schema.default(self.name)
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   244
            return ()
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   245
        return None
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   246
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   247
    def example_format(self, req):
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   248
        """return a sample string describing what can be given as input for this
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        field
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   250
        """
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   251
        return u''
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    def render(self, form, renderer):
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        """render this field, which is part of form, using the given form
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   255
        renderer
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   256
        """
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562f5dcf2345 widget.render now takes the renderer as third argument (keeping minimal bw compat)
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diff changeset
   257
        widget = self.get_widget(form)
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4d95109582c7 [web] remove widget.render backward compatibility
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diff changeset
   258
        return widget.render(form, self, renderer)
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parents:
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   259
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   260
    def vocabulary(self, form, **kwargs):
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        """return vocabulary for this field. This method will be called by
4161
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parents: 4160
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   262
        widgets which requires a vocabulary.
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   263
        """
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diff changeset
   264
        assert self.choices is not None
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   265
        if callable(self.choices):
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diff changeset
   266
            try:
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parents: 4304
diff changeset
   267
                if getattr(self.choices, 'im_self', None) is self:
4388
15c6607c4bda [forms] propagate aguments given to .vocabulary to .choices if it's a callable.
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   268
                    vocab = self.choices(form=form, **kwargs)
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diff changeset
   269
                else:
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diff changeset
   270
                    vocab = self.choices(form=form, field=self, **kwargs)
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diff changeset
   271
            except TypeError:
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diff changeset
   272
                try:
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   273
                    vocab = self.choices(form=form, **kwargs)
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4f741341d96f avoid to see the same warning twice, one for 3.6 another for 3.3
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diff changeset
   274
                    warn('[3.6]  %s: choices should now take '
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   275
                         'the form and field as named arguments' % self,
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   276
                         DeprecationWarning)
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diff changeset
   277
                except TypeError:
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   278
                    warn('[3.3]  %s: choices should now take '
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cf8842b69379 [forms] fix backward compat for field.choices arguments
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parents: 4382
diff changeset
   279
                         'the form and field as named arguments' % self,
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diff changeset
   280
                         DeprecationWarning)
4388
15c6607c4bda [forms] propagate aguments given to .vocabulary to .choices if it's a callable.
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diff changeset
   281
                    vocab = self.choices(req=form._cw, **kwargs)
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   282
        else:
4170
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diff changeset
   283
            vocab = self.choices
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diff changeset
   284
        if vocab and not isinstance(vocab[0], (list, tuple)):
c325c62cec8e crecord introduced junk...
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diff changeset
   285
            vocab = [(x, x) for x in vocab]
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diff changeset
   286
        if self.internationalizable:
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34fdb8fb49d1 [B] web: weird display with internationalizable (Closes: #503071)
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parents: 3689
diff changeset
   287
            # the short-cirtcuit 'and' boolean operator is used here to permit
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parents: 3689
diff changeset
   288
            # a valid empty string in vocabulary without attempting to translate
34fdb8fb49d1 [B] web: weird display with internationalizable (Closes: #503071)
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parents: 3689
diff changeset
   289
            # it by gettext (which can lead to weird strings display)
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d7a270f50f54 backport stable branch (one more time painfully)
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parents: 3720 3874
diff changeset
   290
            vocab = [(label and form._cw._(label), value) for label, value in vocab]
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diff changeset
   291
        if self.sort:
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8d831c02da9a fix sort of fields vocabulary: should consider option groups
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parents: 3308
diff changeset
   292
            vocab = vocab_sort(vocab)
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diff changeset
   293
        return vocab
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diff changeset
   294
4162
d2663bcf5306 replace form_field_[encoding|vocabulary] methods on form by encoding|vocabylary(form) methods on fields
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parents: 4161
diff changeset
   295
    def format(self, form):
d2663bcf5306 replace form_field_[encoding|vocabulary] methods on form by encoding|vocabylary(form) methods on fields
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diff changeset
   296
        """return MIME type used for the given (text or bytes) field"""
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parents: 4161
diff changeset
   297
        if self.eidparam and self.role == 'subject':
d2663bcf5306 replace form_field_[encoding|vocabulary] methods on form by encoding|vocabylary(form) methods on fields
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parents: 4161
diff changeset
   298
            entity = form.edited_entity
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diff changeset
   299
            if entity.e_schema.has_metadata(self.name, 'format') and (
d2663bcf5306 replace form_field_[encoding|vocabulary] methods on form by encoding|vocabylary(form) methods on fields
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diff changeset
   300
                entity.has_eid() or '%s_format' % self.name in entity):
d2663bcf5306 replace form_field_[encoding|vocabulary] methods on form by encoding|vocabylary(form) methods on fields
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diff changeset
   301
                return form.edited_entity.attr_metadata(self.name, 'format')
d2663bcf5306 replace form_field_[encoding|vocabulary] methods on form by encoding|vocabylary(form) methods on fields
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diff changeset
   302
        return form._cw.property_value('ui.default-text-format')
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   303
d2663bcf5306 replace form_field_[encoding|vocabulary] methods on form by encoding|vocabylary(form) methods on fields
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   304
    def encoding(self, form):
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   305
        """return encoding used for the given (text) field"""
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diff changeset
   306
        if self.eidparam:
d2663bcf5306 replace form_field_[encoding|vocabulary] methods on form by encoding|vocabylary(form) methods on fields
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diff changeset
   307
            entity = form.edited_entity
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diff changeset
   308
            if entity.e_schema.has_metadata(self.name, 'encoding') and (
d2663bcf5306 replace form_field_[encoding|vocabulary] methods on form by encoding|vocabylary(form) methods on fields
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parents: 4161
diff changeset
   309
                entity.has_eid() or '%s_encoding' % self.name in entity):
d2663bcf5306 replace form_field_[encoding|vocabulary] methods on form by encoding|vocabylary(form) methods on fields
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   310
                return form.edited_entity.attr_metadata(self.name, 'encoding')
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diff changeset
   311
        return form._cw.encoding
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   312
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   313
    def form_init(self, form):
3510
bf746bf4a394 rename form_build_context to build_context, and call it from form, not renderer
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   314
        """method called before by build_context to trigger potential field
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   315
        initialization requiring the form instance
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   316
        """
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   317
        pass
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   318
4162
d2663bcf5306 replace form_field_[encoding|vocabulary] methods on form by encoding|vocabylary(form) methods on fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4161
diff changeset
   319
    def has_been_modified(self, form):
4495
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   320
        # fields not corresponding to an entity attribute / relations
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   321
        # are considered modified
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   322
        if not self.eidparam or not self.role or not form.edited_entity.has_eid():
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   323
            return True # XXX
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   324
        try:
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   325
            if self.role == 'subject':
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   326
                previous_value = getattr(form.edited_entity, self.name)
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   327
            else:
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   328
                previous_value = getattr(form.edited_entity,
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   329
                                         'reverse_%s' % self.name)
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   330
        except AttributeError:
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   331
            # fields with eidparam=True but not corresponding to an actual
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   332
            # attribute or relation
4162
d2663bcf5306 replace form_field_[encoding|vocabulary] methods on form by encoding|vocabylary(form) methods on fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4161
diff changeset
   333
            return True
4495
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   334
        # if it's a non final relation, we need the eids
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   335
        if isinstance(previous_value, tuple):
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   336
            # widget should return a set of untyped eids
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   337
            previous_value = set(unicode(e.eid) for e in previous_value)
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   338
        try:
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   339
            new_value = self.process_form_value(form)
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   340
        except ProcessFormError:
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   341
            return True
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   342
        except UnmodifiedField:
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   343
            return False
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   344
        if previous_value == new_value:
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   345
            return False # not modified
99c18d3f9542 unvisible field may have been modified, for instance relation added by an hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4481
diff changeset
   346
        return True
4162
d2663bcf5306 replace form_field_[encoding|vocabulary] methods on form by encoding|vocabylary(form) methods on fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4161
diff changeset
   347
3387
a357d4147eee [forms] work-in-progress, big editcontroller refactoring: let fields/widgets process posted data
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3385
diff changeset
   348
    def process_form_value(self, form):
a357d4147eee [forms] work-in-progress, big editcontroller refactoring: let fields/widgets process posted data
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3385
diff changeset
   349
        """process posted form and return correctly typed value"""
4359
fabc680bb0bf fix Bytes submission pb on POST, due to multiple call to field.process_form_value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4354
diff changeset
   350
        try:
fabc680bb0bf fix Bytes submission pb on POST, due to multiple call to field.process_form_value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4354
diff changeset
   351
            return form.formvalues[self]
fabc680bb0bf fix Bytes submission pb on POST, due to multiple call to field.process_form_value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4354
diff changeset
   352
        except KeyError:
fabc680bb0bf fix Bytes submission pb on POST, due to multiple call to field.process_form_value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4354
diff changeset
   353
            value = form.formvalues[self] = self._process_form_value(form)
fabc680bb0bf fix Bytes submission pb on POST, due to multiple call to field.process_form_value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4354
diff changeset
   354
            return value
fabc680bb0bf fix Bytes submission pb on POST, due to multiple call to field.process_form_value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4354
diff changeset
   355
fabc680bb0bf fix Bytes submission pb on POST, due to multiple call to field.process_form_value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4354
diff changeset
   356
    def _process_form_value(self, form):
3387
a357d4147eee [forms] work-in-progress, big editcontroller refactoring: let fields/widgets process posted data
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3385
diff changeset
   357
        widget = self.get_widget(form)
4370
75c610a85949 introduce new _ensure_correctly_typed method on fields, responsible
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4369
diff changeset
   358
        value = widget.process_field_data(form, self)
75c610a85949 introduce new _ensure_correctly_typed method on fields, responsible
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4369
diff changeset
   359
        return self._ensure_correctly_typed(form, value)
75c610a85949 introduce new _ensure_correctly_typed method on fields, responsible
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4369
diff changeset
   360
75c610a85949 introduce new _ensure_correctly_typed method on fields, responsible
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4369
diff changeset
   361
    def _ensure_correctly_typed(self, form, value):
75c610a85949 introduce new _ensure_correctly_typed method on fields, responsible
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4369
diff changeset
   362
        """widget might to return date as a correctly formatted string or as
75c610a85949 introduce new _ensure_correctly_typed method on fields, responsible
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4369
diff changeset
   363
        correctly typed objects, but process_for_value must return a typed value.
75c610a85949 introduce new _ensure_correctly_typed method on fields, responsible
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4369
diff changeset
   364
        Override this method to type the value if necessary
75c610a85949 introduce new _ensure_correctly_typed method on fields, responsible
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4369
diff changeset
   365
        """
4392
91a56a30141e by default this is not the widget responsability to turn empty string into None,
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4388
diff changeset
   366
        return value or None
3387
a357d4147eee [forms] work-in-progress, big editcontroller refactoring: let fields/widgets process posted data
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3385
diff changeset
   367
a357d4147eee [forms] work-in-progress, big editcontroller refactoring: let fields/widgets process posted data
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3385
diff changeset
   368
    def process_posted(self, form):
a357d4147eee [forms] work-in-progress, big editcontroller refactoring: let fields/widgets process posted data
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3385
diff changeset
   369
        for field in self.actual_fields(form):
a357d4147eee [forms] work-in-progress, big editcontroller refactoring: let fields/widgets process posted data
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3385
diff changeset
   370
            if field is self:
4251
3c6569be1f86 fix pb with bytes field processing: currently when an existing file is edited
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4241
diff changeset
   371
                try:
3c6569be1f86 fix pb with bytes field processing: currently when an existing file is edited
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4241
diff changeset
   372
                    yield field, field.process_form_value(form)
3c6569be1f86 fix pb with bytes field processing: currently when an existing file is edited
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4241
diff changeset
   373
                except UnmodifiedField:
3c6569be1f86 fix pb with bytes field processing: currently when an existing file is edited
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4241
diff changeset
   374
                    continue
3387
a357d4147eee [forms] work-in-progress, big editcontroller refactoring: let fields/widgets process posted data
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3385
diff changeset
   375
            else:
a357d4147eee [forms] work-in-progress, big editcontroller refactoring: let fields/widgets process posted data
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3385
diff changeset
   376
                # recursive function: we might have compound fields
a357d4147eee [forms] work-in-progress, big editcontroller refactoring: let fields/widgets process posted data
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3385
diff changeset
   377
                # of compound fields (of compound fields of ...)
4166
677e487e691a process_posted yield field instead of field's name
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   378
                for field, value in field.process_posted(form):
677e487e691a process_posted yield field instead of field's name
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   379
                    yield field, value
3387
a357d4147eee [forms] work-in-progress, big editcontroller refactoring: let fields/widgets process posted data
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3385
diff changeset
   380
1986
96c0e56cb0cf move widget selection's logic on fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   381
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   382
class StringField(Field):
4368
d752ad901f14 cleanup module namespace but only importing the formwidgets module
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4359
diff changeset
   383
    widget = fw.TextArea
4215
9fbc39453012 [forms] make it easier to override StringField's mininum size
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4212
diff changeset
   384
    size = 45
1986
96c0e56cb0cf move widget selection's logic on fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   385
4168
9d83f9c80c1c nicer StringField __init__
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4166
diff changeset
   386
    def __init__(self, name=None, max_length=None, **kwargs):
1986
96c0e56cb0cf move widget selection's logic on fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   387
        self.max_length = max_length # must be set before super call
4168
9d83f9c80c1c nicer StringField __init__
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4166
diff changeset
   388
        super(StringField, self).__init__(name=name, **kwargs)
1986
96c0e56cb0cf move widget selection's logic on fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   389
96c0e56cb0cf move widget selection's logic on fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   390
    def init_widget(self, widget):
96c0e56cb0cf move widget selection's logic on fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   391
        if widget is None:
96c0e56cb0cf move widget selection's logic on fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   392
            if self.choices:
4368
d752ad901f14 cleanup module namespace but only importing the formwidgets module
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4359
diff changeset
   393
                widget = fw.Select()
1986
96c0e56cb0cf move widget selection's logic on fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   394
            elif self.max_length and self.max_length < 257:
4368
d752ad901f14 cleanup module namespace but only importing the formwidgets module
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4359
diff changeset
   395
                widget = fw.TextInput()
2344
22b5ea0679ed [formfields] set a reasonable minimal minimum length to input/text, also set the max length if applicable (closes #344538)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 2332
diff changeset
   396
1986
96c0e56cb0cf move widget selection's logic on fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   397
        super(StringField, self).init_widget(widget)
4368
d752ad901f14 cleanup module namespace but only importing the formwidgets module
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4359
diff changeset
   398
        if isinstance(self.widget, fw.TextArea):
1573
d34589d35daa drop TextField, this is simply a StringField with a text area widget
sylvain.thenault@logilab.fr
parents: 1564
diff changeset
   399
            self.init_text_area(self.widget)
4368
d752ad901f14 cleanup module namespace but only importing the formwidgets module
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4359
diff changeset
   400
        elif isinstance(self.widget, fw.TextInput):
2360
1d43aa551ba9 [formwidgets,formfields] hum, this way
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 2356
diff changeset
   401
            self.init_text_input(self.widget)
1d43aa551ba9 [formwidgets,formfields] hum, this way
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 2356
diff changeset
   402
1d43aa551ba9 [formwidgets,formfields] hum, this way
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 2356
diff changeset
   403
    def init_text_input(self, widget):
1d43aa551ba9 [formwidgets,formfields] hum, this way
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 2356
diff changeset
   404
        if self.max_length:
4215
9fbc39453012 [forms] make it easier to override StringField's mininum size
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4212
diff changeset
   405
            widget.attrs.setdefault('size', min(self.size, self.max_length))
2360
1d43aa551ba9 [formwidgets,formfields] hum, this way
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 2356
diff changeset
   406
            widget.attrs.setdefault('maxlength', self.max_length)
1573
d34589d35daa drop TextField, this is simply a StringField with a text area widget
sylvain.thenault@logilab.fr
parents: 1564
diff changeset
   407
d34589d35daa drop TextField, this is simply a StringField with a text area widget
sylvain.thenault@logilab.fr
parents: 1564
diff changeset
   408
    def init_text_area(self, widget):
d34589d35daa drop TextField, this is simply a StringField with a text area widget
sylvain.thenault@logilab.fr
parents: 1564
diff changeset
   409
        if self.max_length < 513:
d34589d35daa drop TextField, this is simply a StringField with a text area widget
sylvain.thenault@logilab.fr
parents: 1564
diff changeset
   410
            widget.attrs.setdefault('cols', 60)
d34589d35daa drop TextField, this is simply a StringField with a text area widget
sylvain.thenault@logilab.fr
parents: 1564
diff changeset
   411
            widget.attrs.setdefault('rows', 5)
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   412
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   413
4159
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   414
class PasswordField(StringField):
4368
d752ad901f14 cleanup module namespace but only importing the formwidgets module
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4359
diff changeset
   415
    widget = fw.PasswordInput
4159
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   416
4369
6d3dae46ee95 fix typed_value implementation w/ eidparam field which are actual entity's relation and have .value set for their initial value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4368
diff changeset
   417
    def typed_value(self, form, load_bytes=False):
4159
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   418
        if self.eidparam:
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   419
            # no way to fetch actual password value with cw
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   420
            if form.edited_entity.has_eid():
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   421
                return INTERNAL_FIELD_VALUE
4369
6d3dae46ee95 fix typed_value implementation w/ eidparam field which are actual entity's relation and have .value set for their initial value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4368
diff changeset
   422
            return self.initial_typed_value(form, load_bytes)
6d3dae46ee95 fix typed_value implementation w/ eidparam field which are actual entity's relation and have .value set for their initial value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4368
diff changeset
   423
        return super(PasswordField, self).typed_value(form, load_bytes)
4159
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   424
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   425
1573
d34589d35daa drop TextField, this is simply a StringField with a text area widget
sylvain.thenault@logilab.fr
parents: 1564
diff changeset
   426
class RichTextField(StringField):
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   427
    widget = None
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   428
    def __init__(self, format_field=None, **kwargs):
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   429
        super(RichTextField, self).__init__(**kwargs)
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   430
        self.format_field = format_field
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   431
2348
acf4b6a59558 [formwidgets] ensure textarea for richstring has not ridicuously small size (close #344547)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 2347
diff changeset
   432
    def init_text_area(self, widget):
acf4b6a59558 [formwidgets] ensure textarea for richstring has not ridicuously small size (close #344547)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 2347
diff changeset
   433
        pass
acf4b6a59558 [formwidgets] ensure textarea for richstring has not ridicuously small size (close #344547)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 2347
diff changeset
   434
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   435
    def get_widget(self, form):
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   436
        if self.widget is None:
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   437
            if self.use_fckeditor(form):
4368
d752ad901f14 cleanup module namespace but only importing the formwidgets module
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4359
diff changeset
   438
                return fw.FCKEditor()
d752ad901f14 cleanup module namespace but only importing the formwidgets module
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4359
diff changeset
   439
            widget = fw.TextArea()
1573
d34589d35daa drop TextField, this is simply a StringField with a text area widget
sylvain.thenault@logilab.fr
parents: 1564
diff changeset
   440
            self.init_text_area(widget)
d34589d35daa drop TextField, this is simply a StringField with a text area widget
sylvain.thenault@logilab.fr
parents: 1564
diff changeset
   441
            return widget
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   442
        return self.widget
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   443
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   444
    def get_format_field(self, form):
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   445
        if self.format_field:
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   446
            return self.format_field
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   447
        # we have to cache generated field since it's use as key in the
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   448
        # context dictionnary
3451
6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3388
diff changeset
   449
        req = form._cw
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   450
        try:
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   451
            return req.data[self]
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   452
        except KeyError:
4165
eb9acad29407 proper field's role handling: may be 'subject' / 'object' *in case
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4162
diff changeset
   453
            fkwargs = {'eidparam': self.eidparam, 'role': self.role}
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   454
            if self.use_fckeditor(form):
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   455
                # if fckeditor is used and format field isn't explicitly
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   456
                # deactivated, we want an hidden field for the format
4368
d752ad901f14 cleanup module namespace but only importing the formwidgets module
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4359
diff changeset
   457
                fkwargs['widget'] = fw.HiddenInput()
4159
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   458
                fkwargs['value'] = 'text/html'
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   459
            else:
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   460
                # else we want a format selector
4368
d752ad901f14 cleanup module namespace but only importing the formwidgets module
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4359
diff changeset
   461
                fkwargs['widget'] = fw.Select()
1095
6917ebe281e9 test and fix guess_field, some pylint fixes
sylvain.thenault@logilab.fr
parents: 1081
diff changeset
   462
                fcstr = FormatConstraint()
3347
428f95118556 fix vocab param to avoid deprecation warning
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3337
diff changeset
   463
                fkwargs['choices'] = fcstr.vocabulary(form=form)
1858
69e41c88e195 connect format field to form_field_format for its initial value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1836
diff changeset
   464
                fkwargs['internationalizable'] = True
4159
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   465
                fkwargs['value'] = self.format
3385
68953ecddd2b [forms] work-in-progress: let guess_field and RichTextField.get_format_field handle eidparam of meta fields
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3384
diff changeset
   466
            fkwargs['eidparam'] = self.eidparam
1858
69e41c88e195 connect format field to form_field_format for its initial value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1836
diff changeset
   467
            field = StringField(name=self.name + '_format', **fkwargs)
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   468
            req.data[self] = field
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   469
            return field
1437
ea75dfe32317 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1417
diff changeset
   470
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   471
    def actual_fields(self, form):
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   472
        yield self
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   473
        format_field = self.get_format_field(form)
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   474
        if format_field:
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   475
            yield format_field
1437
ea75dfe32317 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1417
diff changeset
   476
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   477
    def use_fckeditor(self, form):
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   478
        """return True if fckeditor should be used to edit entity's attribute named
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   479
        `attr`, according to user preferences
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   480
        """
3451
6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3388
diff changeset
   481
        if form._cw.use_fckeditor():
4162
d2663bcf5306 replace form_field_[encoding|vocabulary] methods on form by encoding|vocabylary(form) methods on fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4161
diff changeset
   482
            return self.format(form) == 'text/html'
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   483
        return False
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   484
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   485
    def render(self, form, renderer):
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   486
        format_field = self.get_format_field(form)
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   487
        if format_field:
1793
fdac26e003e7 fix vertical alignment pb. with descr. format list and textarea inputs
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 1758
diff changeset
   488
            # XXX we want both fields to remain vertically aligned
2723
d38c2b01d766 don't set display: block on hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2362
diff changeset
   489
            if format_field.is_visible():
d38c2b01d766 don't set display: block on hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2362
diff changeset
   490
                format_field.widget.attrs['style'] = 'display: block'
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   491
            result = format_field.render(form, renderer)
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   492
        else:
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   493
            result = u''
2522
562f5dcf2345 widget.render now takes the renderer as third argument (keeping minimal bw compat)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2520
diff changeset
   494
        return result + self.get_widget(form).render(form, self, renderer)
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   495
1417
06af20e663f2 remove spaces
sylvain.thenault@logilab.fr
parents: 1393
diff changeset
   496
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   497
class FileField(StringField):
4368
d752ad901f14 cleanup module namespace but only importing the formwidgets module
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4359
diff changeset
   498
    widget = fw.FileInput
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   499
    needs_multipart = True
1437
ea75dfe32317 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1417
diff changeset
   500
3496
35a67ac6efe8 support name metadata on guess_field; add name_field to FileField
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3347
diff changeset
   501
    def __init__(self, format_field=None, encoding_field=None, name_field=None,
35a67ac6efe8 support name metadata on guess_field; add name_field to FileField
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3347
diff changeset
   502
                 **kwargs):
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   503
        super(FileField, self).__init__(**kwargs)
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   504
        self.format_field = format_field
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   505
        self.encoding_field = encoding_field
3496
35a67ac6efe8 support name metadata on guess_field; add name_field to FileField
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3347
diff changeset
   506
        self.name_field = name_field
1437
ea75dfe32317 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1417
diff changeset
   507
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   508
    def actual_fields(self, form):
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   509
        yield self
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   510
        if self.format_field:
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   511
            yield self.format_field
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   512
        if self.encoding_field:
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   513
            yield self.encoding_field
3496
35a67ac6efe8 support name metadata on guess_field; add name_field to FileField
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3347
diff changeset
   514
        if self.name_field:
35a67ac6efe8 support name metadata on guess_field; add name_field to FileField
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3347
diff changeset
   515
            yield self.name_field
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   516
4369
6d3dae46ee95 fix typed_value implementation w/ eidparam field which are actual entity's relation and have .value set for their initial value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4368
diff changeset
   517
    def typed_value(self, form, load_bytes=False):
6d3dae46ee95 fix typed_value implementation w/ eidparam field which are actual entity's relation and have .value set for their initial value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4368
diff changeset
   518
        if self.eidparam and self.role is not None:
4159
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   519
            if form.edited_entity.has_eid():
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   520
                if load_bytes:
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   521
                    return getattr(form.edited_entity, self.name)
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   522
                # don't actually load data
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   523
                # XXX value should reflect if some file is already attached
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   524
                # * try to display name metadata
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   525
                # * check length(data) / data != null
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   526
                return True
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   527
            return False
4369
6d3dae46ee95 fix typed_value implementation w/ eidparam field which are actual entity's relation and have .value set for their initial value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4368
diff changeset
   528
        return super(FileField, self).typed_value(form, load_bytes)
4159
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   529
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   530
    def render(self, form, renderer):
2522
562f5dcf2345 widget.render now takes the renderer as third argument (keeping minimal bw compat)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2520
diff changeset
   531
        wdgs = [self.get_widget(form).render(form, self, renderer)]
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   532
        if self.format_field or self.encoding_field:
4156
1bbb0ee42c8e drop form_field_name/form_field_id methods from form object, in favor of field.input_name(form) / field.dom_id(form)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4110
diff changeset
   533
            divid = '%s-advanced' % self.input_name(form)
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   534
            wdgs.append(u'<a href="%s" title="%s"><img src="%s" alt="%s"/></a>' %
2312
af4d8f75c5db use xml_escape
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2244
diff changeset
   535
                        (xml_escape(uilib.toggle_action(divid)),
3451
6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3388
diff changeset
   536
                         form._cw._('show advanced fields'),
6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3388
diff changeset
   537
                         xml_escape(form._cw.build_url('data/puce_down.png')),
6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3388
diff changeset
   538
                         form._cw._('show advanced fields')))
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   539
            wdgs.append(u'<div id="%s" class="hidden">' % divid)
3496
35a67ac6efe8 support name metadata on guess_field; add name_field to FileField
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3347
diff changeset
   540
            if self.name_field:
35a67ac6efe8 support name metadata on guess_field; add name_field to FileField
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3347
diff changeset
   541
                wdgs.append(self.render_subfield(form, self.name_field, renderer))
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   542
            if self.format_field:
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   543
                wdgs.append(self.render_subfield(form, self.format_field, renderer))
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   544
            if self.encoding_field:
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   545
                wdgs.append(self.render_subfield(form, self.encoding_field, renderer))
1437
ea75dfe32317 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1417
diff changeset
   546
            wdgs.append(u'</div>')
4369
6d3dae46ee95 fix typed_value implementation w/ eidparam field which are actual entity's relation and have .value set for their initial value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4368
diff changeset
   547
        if not self.required and self.typed_value(form):
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   548
            # trick to be able to delete an uploaded file
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   549
            wdgs.append(u'<br/>')
4156
1bbb0ee42c8e drop form_field_name/form_field_id methods from form object, in favor of field.input_name(form) / field.dom_id(form)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4110
diff changeset
   550
            wdgs.append(tags.input(name=self.input_name(form, u'__detach'),
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   551
                                   type=u'checkbox'))
3451
6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3388
diff changeset
   552
            wdgs.append(form._cw._('detach attached file'))
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   553
        return u'\n'.join(wdgs)
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   554
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   555
    def render_subfield(self, form, field, renderer):
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   556
        return (renderer.render_label(form, field)
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   557
                + field.render(form, renderer)
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   558
                + renderer.render_help(form, field)
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   559
                + u'<br/>')
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   560
4359
fabc680bb0bf fix Bytes submission pb on POST, due to multiple call to field.process_form_value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4354
diff changeset
   561
    def _process_form_value(self, form):
3451
6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3388
diff changeset
   562
        posted = form._cw.form
4156
1bbb0ee42c8e drop form_field_name/form_field_id methods from form object, in favor of field.input_name(form) / field.dom_id(form)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4110
diff changeset
   563
        if self.input_name(form, u'__detach') in posted:
4251
3c6569be1f86 fix pb with bytes field processing: currently when an existing file is edited
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4241
diff changeset
   564
            # drop current file value on explictily asked to detach
3c6569be1f86 fix pb with bytes field processing: currently when an existing file is edited
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4241
diff changeset
   565
            return None
3c6569be1f86 fix pb with bytes field processing: currently when an existing file is edited
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4241
diff changeset
   566
        try:
3c6569be1f86 fix pb with bytes field processing: currently when an existing file is edited
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4241
diff changeset
   567
            value = posted[self.input_name(form)]
3c6569be1f86 fix pb with bytes field processing: currently when an existing file is edited
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4241
diff changeset
   568
        except KeyError:
3c6569be1f86 fix pb with bytes field processing: currently when an existing file is edited
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4241
diff changeset
   569
            # raise UnmodifiedField instead of returning None, since the later
3c6569be1f86 fix pb with bytes field processing: currently when an existing file is edited
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4241
diff changeset
   570
            # will try to remove already attached file if any
3c6569be1f86 fix pb with bytes field processing: currently when an existing file is edited
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4241
diff changeset
   571
            raise UnmodifiedField()
3c6569be1f86 fix pb with bytes field processing: currently when an existing file is edited
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4241
diff changeset
   572
        # skip browser submitted mime type
3c6569be1f86 fix pb with bytes field processing: currently when an existing file is edited
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4241
diff changeset
   573
        filename, _, stream = value
3c6569be1f86 fix pb with bytes field processing: currently when an existing file is edited
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4241
diff changeset
   574
        # value is a  3-uple (filename, mimetype, stream)
3c6569be1f86 fix pb with bytes field processing: currently when an existing file is edited
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4241
diff changeset
   575
        value = Binary(stream.read())
4273
183cd0df6f1a fix dumb name error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4272
diff changeset
   576
        if not value.getvalue(): # usually an unexistant file
3387
a357d4147eee [forms] work-in-progress, big editcontroller refactoring: let fields/widgets process posted data
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3385
diff changeset
   577
            value = None
4156
1bbb0ee42c8e drop form_field_name/form_field_id methods from form object, in favor of field.input_name(form) / field.dom_id(form)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4110
diff changeset
   578
        else:
4251
3c6569be1f86 fix pb with bytes field processing: currently when an existing file is edited
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4241
diff changeset
   579
            # set filename on the Binary instance, may be used later in hooks
3c6569be1f86 fix pb with bytes field processing: currently when an existing file is edited
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4241
diff changeset
   580
            value.filename = filename
3387
a357d4147eee [forms] work-in-progress, big editcontroller refactoring: let fields/widgets process posted data
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3385
diff changeset
   581
        return value
a357d4147eee [forms] work-in-progress, big editcontroller refactoring: let fields/widgets process posted data
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3385
diff changeset
   582
1437
ea75dfe32317 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1417
diff changeset
   583
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   584
class EditableFileField(FileField):
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   585
    editable_formats = ('text/plain', 'text/html', 'text/rest')
1437
ea75dfe32317 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1417
diff changeset
   586
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   587
    def render(self, form, renderer):
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   588
        wdgs = [super(EditableFileField, self).render(form, renderer)]
4159
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   589
        if self.format(form) in self.editable_formats:
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   590
            data = self.typed_value(form, load_bytes=True)
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   591
            if data:
4162
d2663bcf5306 replace form_field_[encoding|vocabulary] methods on form by encoding|vocabylary(form) methods on fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4161
diff changeset
   592
                encoding = self.encoding(form)
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   593
                try:
4159
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   594
                    form.formvalues[self] = unicode(data.getvalue(), encoding)
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   595
                except UnicodeError:
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   596
                    pass
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   597
                else:
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   598
                    if not self.required:
3451
6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3388
diff changeset
   599
                        msg = form._cw._(
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   600
                            'You can either submit a new file using the browse button above'
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   601
                            ', or choose to remove already uploaded file by checking the '
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   602
                            '"detach attached file" check-box, or edit file content online '
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   603
                            'with the widget below.')
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   604
                    else:
3451
6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3388
diff changeset
   605
                        msg = form._cw._(
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   606
                            'You can either submit a new file using the browse button above'
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   607
                            ', or edit file content online with the widget below.')
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   608
                    wdgs.append(u'<p><b>%s</b></p>' % msg)
4368
d752ad901f14 cleanup module namespace but only importing the formwidgets module
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4359
diff changeset
   609
                    wdgs.append(fw.TextArea(setdomid=False).render(form, self, renderer))
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   610
                    # XXX restore form context?
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   611
        return '\n'.join(wdgs)
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   612
4359
fabc680bb0bf fix Bytes submission pb on POST, due to multiple call to field.process_form_value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4354
diff changeset
   613
    def _process_form_value(self, form):
4156
1bbb0ee42c8e drop form_field_name/form_field_id methods from form object, in favor of field.input_name(form) / field.dom_id(form)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4110
diff changeset
   614
        value = form._cw.form.get(self.input_name(form))
3387
a357d4147eee [forms] work-in-progress, big editcontroller refactoring: let fields/widgets process posted data
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3385
diff changeset
   615
        if isinstance(value, unicode):
a357d4147eee [forms] work-in-progress, big editcontroller refactoring: let fields/widgets process posted data
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3385
diff changeset
   616
            # file modified using a text widget
4162
d2663bcf5306 replace form_field_[encoding|vocabulary] methods on form by encoding|vocabylary(form) methods on fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4161
diff changeset
   617
            return Binary(value.encode(self.encoding(form)))
4359
fabc680bb0bf fix Bytes submission pb on POST, due to multiple call to field.process_form_value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4354
diff changeset
   618
        return super(EditableFileField, self)._process_form_value(form)
3387
a357d4147eee [forms] work-in-progress, big editcontroller refactoring: let fields/widgets process posted data
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3385
diff changeset
   619
1437
ea75dfe32317 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1417
diff changeset
   620
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   621
class IntField(Field):
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   622
    def __init__(self, min=None, max=None, **kwargs):
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   623
        super(IntField, self).__init__(**kwargs)
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   624
        self.min = min
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   625
        self.max = max
4368
d752ad901f14 cleanup module namespace but only importing the formwidgets module
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4359
diff changeset
   626
        if isinstance(self.widget, fw.TextInput):
1758
d46f59e5efd3 some widget adjustments
sylvain.thenault@logilab.fr
parents: 1738
diff changeset
   627
            self.widget.attrs.setdefault('size', 5)
d46f59e5efd3 some widget adjustments
sylvain.thenault@logilab.fr
parents: 1738
diff changeset
   628
            self.widget.attrs.setdefault('maxlength', 15)
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   629
4370
75c610a85949 introduce new _ensure_correctly_typed method on fields, responsible
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4369
diff changeset
   630
    def _ensure_correctly_typed(self, form, value):
75c610a85949 introduce new _ensure_correctly_typed method on fields, responsible
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4369
diff changeset
   631
        if isinstance(value, basestring):
4528
a51f37efc882 quick fix for typed formfield validation: accept empty string, split
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4499
diff changeset
   632
            value = value.strip()
a51f37efc882 quick fix for typed formfield validation: accept empty string, split
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4499
diff changeset
   633
            if not value:
a51f37efc882 quick fix for typed formfield validation: accept empty string, split
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4499
diff changeset
   634
                return None
4225
c49bb6e3d343 fix process_form_values: we should handle value errors and properly raise ProcessFormError
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4181
diff changeset
   635
            try:
c49bb6e3d343 fix process_form_values: we should handle value errors and properly raise ProcessFormError
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4181
diff changeset
   636
                return int(value)
c49bb6e3d343 fix process_form_values: we should handle value errors and properly raise ProcessFormError
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4181
diff changeset
   637
            except ValueError:
c49bb6e3d343 fix process_form_values: we should handle value errors and properly raise ProcessFormError
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4181
diff changeset
   638
                raise ProcessFormError(form._cw._('an integer is expected'))
4370
75c610a85949 introduce new _ensure_correctly_typed method on fields, responsible
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4369
diff changeset
   639
        return value
1986
96c0e56cb0cf move widget selection's logic on fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   640
96c0e56cb0cf move widget selection's logic on fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   641
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   642
class BooleanField(Field):
4368
d752ad901f14 cleanup module namespace but only importing the formwidgets module
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4359
diff changeset
   643
    widget = fw.Radio
1437
ea75dfe32317 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1417
diff changeset
   644
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   645
    def vocabulary(self, form):
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   646
        if self.choices:
4131
d8ca873142f4 call super class if choices specified to get std behaviour
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3874
diff changeset
   647
            return super(BooleanField, self).vocabulary(form)
3451
6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3388
diff changeset
   648
        return [(form._cw._('yes'), '1'), (form._cw._('no'), '')]
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   649
4370
75c610a85949 introduce new _ensure_correctly_typed method on fields, responsible
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4369
diff changeset
   650
    def _ensure_correctly_typed(self, form, value):
4393
87e48fe398f1 systematically call bool on BooleanField values
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4392
diff changeset
   651
        return bool(value)
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   652
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   653
1437
ea75dfe32317 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1417
diff changeset
   654
class FloatField(IntField):
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   655
    def format_single_value(self, req, value):
1095
6917ebe281e9 test and fix guess_field, some pylint fixes
sylvain.thenault@logilab.fr
parents: 1081
diff changeset
   656
        formatstr = req.property_value('ui.float-format')
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   657
        if value is None:
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   658
            return u''
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   659
        return formatstr % float(value)
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   660
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   661
    def render_example(self, req):
2086
be76ce00a05e fix TimeField format_prop, use format_single_value directly in render_example
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1989
diff changeset
   662
        return self.format_single_value(req, 1.234)
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   663
4370
75c610a85949 introduce new _ensure_correctly_typed method on fields, responsible
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4369
diff changeset
   664
    def _ensure_correctly_typed(self, form, value):
75c610a85949 introduce new _ensure_correctly_typed method on fields, responsible
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4369
diff changeset
   665
        if isinstance(value, basestring):
4528
a51f37efc882 quick fix for typed formfield validation: accept empty string, split
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4499
diff changeset
   666
            value = value.strip()
a51f37efc882 quick fix for typed formfield validation: accept empty string, split
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4499
diff changeset
   667
            if not value:
a51f37efc882 quick fix for typed formfield validation: accept empty string, split
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4499
diff changeset
   668
                return None
4225
c49bb6e3d343 fix process_form_values: we should handle value errors and properly raise ProcessFormError
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4181
diff changeset
   669
            try:
c49bb6e3d343 fix process_form_values: we should handle value errors and properly raise ProcessFormError
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4181
diff changeset
   670
                return float(value)
c49bb6e3d343 fix process_form_values: we should handle value errors and properly raise ProcessFormError
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4181
diff changeset
   671
            except ValueError:
c49bb6e3d343 fix process_form_values: we should handle value errors and properly raise ProcessFormError
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4181
diff changeset
   672
                raise ProcessFormError(form._cw._('a float is expected'))
c49bb6e3d343 fix process_form_values: we should handle value errors and properly raise ProcessFormError
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4181
diff changeset
   673
        return None
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   674
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   675
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   676
class DateField(StringField):
4374
ff3efacfea42 by default use new jquery widgets for Time/Date/DateTime fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4370
diff changeset
   677
    widget = fw.JQueryDatePicker
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   678
    format_prop = 'ui.date-format'
4374
ff3efacfea42 by default use new jquery widgets for Time/Date/DateTime fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4370
diff changeset
   679
    etype = 'Date'
1437
ea75dfe32317 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1417
diff changeset
   680
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   681
    def format_single_value(self, req, value):
4382
6fb02edd05da 3.6 api update, cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4377
diff changeset
   682
        if value:
4544
d92aa3221c30 split introduced in the wrong place
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4528
diff changeset
   683
            return ustrftime(value, req.property_value(self.format_prop))
4382
6fb02edd05da 3.6 api update, cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4377
diff changeset
   684
        return u''
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   685
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   686
    def render_example(self, req):
2086
be76ce00a05e fix TimeField format_prop, use format_single_value directly in render_example
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1989
diff changeset
   687
        return self.format_single_value(req, datetime.now())
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   688
4370
75c610a85949 introduce new _ensure_correctly_typed method on fields, responsible
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4369
diff changeset
   689
    def _ensure_correctly_typed(self, form, value):
75c610a85949 introduce new _ensure_correctly_typed method on fields, responsible
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4369
diff changeset
   690
        if isinstance(value, basestring):
4528
a51f37efc882 quick fix for typed formfield validation: accept empty string, split
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4499
diff changeset
   691
            value = value.strip()
a51f37efc882 quick fix for typed formfield validation: accept empty string, split
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4499
diff changeset
   692
            if not value:
a51f37efc882 quick fix for typed formfield validation: accept empty string, split
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4499
diff changeset
   693
                return None
4225
c49bb6e3d343 fix process_form_values: we should handle value errors and properly raise ProcessFormError
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4181
diff changeset
   694
            try:
4370
75c610a85949 introduce new _ensure_correctly_typed method on fields, responsible
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4369
diff changeset
   695
                value = form._cw.parse_datetime(value, self.etype)
4225
c49bb6e3d343 fix process_form_values: we should handle value errors and properly raise ProcessFormError
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4181
diff changeset
   696
            except ValueError, ex:
c49bb6e3d343 fix process_form_values: we should handle value errors and properly raise ProcessFormError
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4181
diff changeset
   697
                raise ProcessFormError(unicode(ex))
4370
75c610a85949 introduce new _ensure_correctly_typed method on fields, responsible
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4369
diff changeset
   698
        return value
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   699
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   700
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   701
class DateTimeField(DateField):
4374
ff3efacfea42 by default use new jquery widgets for Time/Date/DateTime fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4370
diff changeset
   702
    widget = fw.JQueryDateTimePicker
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   703
    format_prop = 'ui.datetime-format'
4370
75c610a85949 introduce new _ensure_correctly_typed method on fields, responsible
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4369
diff changeset
   704
    etype = 'Datetime'
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   705
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   706
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   707
class TimeField(DateField):
4374
ff3efacfea42 by default use new jquery widgets for Time/Date/DateTime fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4370
diff changeset
   708
    widget = fw.JQueryTimePicker
2086
be76ce00a05e fix TimeField format_prop, use format_single_value directly in render_example
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1989
diff changeset
   709
    format_prop = 'ui.time-format'
4370
75c610a85949 introduce new _ensure_correctly_typed method on fields, responsible
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4369
diff changeset
   710
    etype = 'Time'
1986
96c0e56cb0cf move widget selection's logic on fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   711
4161
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   712
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   713
# relation vocabulary helper functions #########################################
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   714
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   715
def relvoc_linkedto(entity, rtype, role):
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   716
    # first see if its specified by __linkto form parameters
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   717
    linkedto = entity.linked_to(rtype, role)
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   718
    if linkedto:
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   719
        buildent = entity._cw.entity_from_eid
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   720
        return [(buildent(eid).view('combobox'), eid) for eid in linkedto]
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   721
    return []
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   722
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   723
def relvoc_init(entity, rtype, role, required=False):
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   724
    # it isn't, check if the entity provides a method to get correct values
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   725
    vocab = []
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   726
    if not required:
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   727
        vocab.append(('', INTERNAL_FIELD_VALUE))
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   728
    # vocabulary doesn't include current values, add them
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   729
    if entity.has_eid():
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   730
        rset = entity.related(rtype, role)
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   731
        vocab += [(e.view('combobox'), e.eid) for e in rset.entities()]
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   732
    return vocab
1437
ea75dfe32317 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1417
diff changeset
   733
4161
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   734
def relvoc_unrelated(entity, rtype, role, limit=None):
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   735
    if isinstance(rtype, basestring):
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   736
        rtype = entity._cw.vreg.schema.rschema(rtype)
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   737
    if entity.has_eid():
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   738
        done = set(row[0] for row in entity.related(rtype, role))
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   739
    else:
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   740
        done = None
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   741
    result = []
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   742
    rsetsize = None
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   743
    for objtype in rtype.targets(entity.e_schema, role):
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   744
        if limit is not None:
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   745
            rsetsize = limit - len(result)
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   746
        result += _relvoc_unrelated(entity, rtype, objtype, role, rsetsize, done)
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   747
        if limit is not None and len(result) >= limit:
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   748
            break
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   749
    return result
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   750
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   751
def _relvoc_unrelated(entity, rtype, targettype, role, limit, done):
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   752
    """return unrelated entities for a given relation and target entity type
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   753
    for use in vocabulary
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   754
    """
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   755
    if done is None:
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   756
        done = set()
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   757
    res = []
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   758
    for entity in entity.unrelated(rtype, targettype, role, limit).entities():
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   759
        if entity.eid in done:
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   760
            continue
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   761
        done.add(entity.eid)
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   762
        res.append((entity.view('combobox'), entity.eid))
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   763
    return res
2146
6645e18e8c93 edit[s|o] field's value should be formatted as the associated field
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2095
diff changeset
   764
1437
ea75dfe32317 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1417
diff changeset
   765
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   766
class RelationField(Field):
4395
e50b71c0dd87 cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4393
diff changeset
   767
    """the relation field to edit non final relations of an entity"""
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   768
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   769
    @staticmethod
1095
6917ebe281e9 test and fix guess_field, some pylint fixes
sylvain.thenault@logilab.fr
parents: 1081
diff changeset
   770
    def fromcardinality(card, **kwargs):
4368
d752ad901f14 cleanup module namespace but only importing the formwidgets module
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4359
diff changeset
   771
        kwargs.setdefault('widget', fw.Select(multiple=card in '*+'))
1738
2cfd50c8a415 should not override potential explicit widget
sylvain.thenault@logilab.fr
parents: 1709
diff changeset
   772
        return RelationField(**kwargs)
1437
ea75dfe32317 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1417
diff changeset
   773
4161
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   774
    def choices(self, form, limit=None):
4388
15c6607c4bda [forms] propagate aguments given to .vocabulary to .choices if it's a callable.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4386
diff changeset
   775
        """Take care, choices function for relation field instance should take
15c6607c4bda [forms] propagate aguments given to .vocabulary to .choices if it's a callable.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4386
diff changeset
   776
        an extra 'limit' argument, with default to None.
15c6607c4bda [forms] propagate aguments given to .vocabulary to .choices if it's a callable.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4386
diff changeset
   777
15c6607c4bda [forms] propagate aguments given to .vocabulary to .choices if it's a callable.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4386
diff changeset
   778
        This argument is used by the 'unrelateddivs' view (see in autoform) and
15c6607c4bda [forms] propagate aguments given to .vocabulary to .choices if it's a callable.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4386
diff changeset
   779
        when it's specified (eg not None), vocabulary returned should:
15c6607c4bda [forms] propagate aguments given to .vocabulary to .choices if it's a callable.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4386
diff changeset
   780
        * not include already related entities
15c6607c4bda [forms] propagate aguments given to .vocabulary to .choices if it's a callable.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4386
diff changeset
   781
        * have a max size of `limit` entities
15c6607c4bda [forms] propagate aguments given to .vocabulary to .choices if it's a callable.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4386
diff changeset
   782
        """
1147
402e8a8b1d6a more form works
sylvain.thenault@logilab.fr
parents: 1108
diff changeset
   783
        entity = form.edited_entity
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   784
        # first see if its specified by __linkto form parameters
4388
15c6607c4bda [forms] propagate aguments given to .vocabulary to .choices if it's a callable.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4386
diff changeset
   785
        if limit is None:
15c6607c4bda [forms] propagate aguments given to .vocabulary to .choices if it's a callable.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4386
diff changeset
   786
            linkedto = relvoc_linkedto(entity, self.name, self.role)
15c6607c4bda [forms] propagate aguments given to .vocabulary to .choices if it's a callable.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4386
diff changeset
   787
            if linkedto:
15c6607c4bda [forms] propagate aguments given to .vocabulary to .choices if it's a callable.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4386
diff changeset
   788
                return linkedto
15c6607c4bda [forms] propagate aguments given to .vocabulary to .choices if it's a callable.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4386
diff changeset
   789
            vocab = relvoc_init(entity, self.name, self.role, self.required)
15c6607c4bda [forms] propagate aguments given to .vocabulary to .choices if it's a callable.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4386
diff changeset
   790
        else:
15c6607c4bda [forms] propagate aguments given to .vocabulary to .choices if it's a callable.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4386
diff changeset
   791
            vocab = []
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   792
        # it isn't, check if the entity provides a method to get correct values
4161
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   793
        method = '%s_%s_vocabulary' % (self.role, self.name)
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   794
        try:
4269
da0d254f2eb0 remove deprecation warnings + name error
alex & cheb
parents: 4252
diff changeset
   795
            vocab += getattr(form, method)(self.name, limit)
4161
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   796
            warn('[3.6] found %s on %s, should override field.choices instead (need tweaks)'
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   797
                 % (method, form), DeprecationWarning)
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   798
        except AttributeError:
4273f5094651 refactor vocabulary handling to avoid having to define methods
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   799
            vocab += relvoc_unrelated(entity, self.name, self.role, limit)
1562
e6d2c07c0c58 [forms/widgets] fix relation field not sorting its vocabulary, revert hack on Select widget
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 1505
diff changeset
   800
        if self.sort:
3334
8d831c02da9a fix sort of fields vocabulary: should consider option groups
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3308
diff changeset
   801
            vocab = vocab_sort(vocab)
1562
e6d2c07c0c58 [forms/widgets] fix relation field not sorting its vocabulary, revert hack on Select widget
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 1505
diff changeset
   802
        return vocab
1437
ea75dfe32317 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1417
diff changeset
   803
4159
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   804
    def form_init(self, form):
4304
0b53e850cdb5 refactor field's value retreiving from the widget (eg 'display value' concept):
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4303
diff changeset
   805
        #if not self.display_value(form):
0b53e850cdb5 refactor field's value retreiving from the widget (eg 'display value' concept):
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4303
diff changeset
   806
        value = form.edited_entity.linked_to(self.name, self.role)
0b53e850cdb5 refactor field's value retreiving from the widget (eg 'display value' concept):
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4303
diff changeset
   807
        if value:
0b53e850cdb5 refactor field's value retreiving from the widget (eg 'display value' concept):
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4303
diff changeset
   808
            searchedvalues = ['%s:%s:%s' % (self.name, eid, self.role)
0b53e850cdb5 refactor field's value retreiving from the widget (eg 'display value' concept):
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4303
diff changeset
   809
                              for eid in value]
0b53e850cdb5 refactor field's value retreiving from the widget (eg 'display value' concept):
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4303
diff changeset
   810
            # remove associated __linkto hidden fields
0b53e850cdb5 refactor field's value retreiving from the widget (eg 'display value' concept):
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4303
diff changeset
   811
            for field in form.root_form.fields_by_name('__linkto'):
0b53e850cdb5 refactor field's value retreiving from the widget (eg 'display value' concept):
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4303
diff changeset
   812
                if field.value in searchedvalues:
0b53e850cdb5 refactor field's value retreiving from the widget (eg 'display value' concept):
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4303
diff changeset
   813
                    form.root_form.remove_field(field)
0b53e850cdb5 refactor field's value retreiving from the widget (eg 'display value' concept):
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4303
diff changeset
   814
            form.formvalues[self] = value
4159
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   815
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   816
    def format_single_value(self, req, value):
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   817
        return value
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   818
4581
c92ded4dee20 [forms] fix RelationField bug with pending eids (eg inlined forms): we have to override process_form_value to avoid caching when recomputing is needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4546
diff changeset
   819
    def process_form_value(self, form):
c92ded4dee20 [forms] fix RelationField bug with pending eids (eg inlined forms): we have to override process_form_value to avoid caching when recomputing is needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4546
diff changeset
   820
        """process posted form and return correctly typed value"""
c92ded4dee20 [forms] fix RelationField bug with pending eids (eg inlined forms): we have to override process_form_value to avoid caching when recomputing is needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4546
diff changeset
   821
        try:
c92ded4dee20 [forms] fix RelationField bug with pending eids (eg inlined forms): we have to override process_form_value to avoid caching when recomputing is needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4546
diff changeset
   822
            return form.formvalues[self]
c92ded4dee20 [forms] fix RelationField bug with pending eids (eg inlined forms): we have to override process_form_value to avoid caching when recomputing is needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4546
diff changeset
   823
        except KeyError:
c92ded4dee20 [forms] fix RelationField bug with pending eids (eg inlined forms): we have to override process_form_value to avoid caching when recomputing is needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4546
diff changeset
   824
            value = self._process_form_value(form)
c92ded4dee20 [forms] fix RelationField bug with pending eids (eg inlined forms): we have to override process_form_value to avoid caching when recomputing is needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4546
diff changeset
   825
            # if value is None, there are some remaining pending fields, we'll
c92ded4dee20 [forms] fix RelationField bug with pending eids (eg inlined forms): we have to override process_form_value to avoid caching when recomputing is needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4546
diff changeset
   826
            # have to recompute this later -> don't cache in formvalues
c92ded4dee20 [forms] fix RelationField bug with pending eids (eg inlined forms): we have to override process_form_value to avoid caching when recomputing is needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4546
diff changeset
   827
            if value is not None:
c92ded4dee20 [forms] fix RelationField bug with pending eids (eg inlined forms): we have to override process_form_value to avoid caching when recomputing is needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4546
diff changeset
   828
                form.formvalues[self] = value
c92ded4dee20 [forms] fix RelationField bug with pending eids (eg inlined forms): we have to override process_form_value to avoid caching when recomputing is needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4546
diff changeset
   829
            return value
c92ded4dee20 [forms] fix RelationField bug with pending eids (eg inlined forms): we have to override process_form_value to avoid caching when recomputing is needed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4546
diff changeset
   830
4359
fabc680bb0bf fix Bytes submission pb on POST, due to multiple call to field.process_form_value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4354
diff changeset
   831
    def _process_form_value(self, form):
4110
8728d8c95985 [mq]: fix_for_forms
Arthur Lutz <arthur.lutz@logilab.fr>
parents: 4101
diff changeset
   832
        """process posted form and return correctly typed value"""
8728d8c95985 [mq]: fix_for_forms
Arthur Lutz <arthur.lutz@logilab.fr>
parents: 4101
diff changeset
   833
        widget = self.get_widget(form)
4171
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4170
diff changeset
   834
        values = widget.process_field_data(form, self)
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4170
diff changeset
   835
        if values is None:
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4170
diff changeset
   836
            values = ()
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4170
diff changeset
   837
        elif not isinstance(values, list):
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4170
diff changeset
   838
            values = (values,)
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4170
diff changeset
   839
        eids = set()
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4170
diff changeset
   840
        for eid in values:
4227
39f01be4a6c5 should skip INTERNAL_FIELD_VALUE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4226
diff changeset
   841
            if not eid or eid == INTERNAL_FIELD_VALUE:
4171
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4170
diff changeset
   842
                continue
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4170
diff changeset
   843
            typed_eid = form.actual_eid(eid)
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4170
diff changeset
   844
            if typed_eid is None:
4226
67dd296f864d should use a set for pending fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4225
diff changeset
   845
                form._cw.data['pendingfields'].add( (form, self) )
4171
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4170
diff changeset
   846
                return None
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4170
diff changeset
   847
            eids.add(typed_eid)
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4170
diff changeset
   848
        return eids
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4170
diff changeset
   849
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   850
2523
1d245fbbeb90 some new field/widgets classes: CompoundField, IntervalWidget, HorizontalLayoutWidget
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2522
diff changeset
   851
class CompoundField(Field):
1d245fbbeb90 some new field/widgets classes: CompoundField, IntervalWidget, HorizontalLayoutWidget
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2522
diff changeset
   852
    def __init__(self, fields, *args, **kwargs):
1d245fbbeb90 some new field/widgets classes: CompoundField, IntervalWidget, HorizontalLayoutWidget
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2522
diff changeset
   853
        super(CompoundField, self).__init__(*args, **kwargs)
1d245fbbeb90 some new field/widgets classes: CompoundField, IntervalWidget, HorizontalLayoutWidget
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2522
diff changeset
   854
        self.fields = fields
1d245fbbeb90 some new field/widgets classes: CompoundField, IntervalWidget, HorizontalLayoutWidget
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2522
diff changeset
   855
2549
3d8c62e5e2d4 [R forms] use a subfields(form) method to get a chance to adapt to context
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2523
diff changeset
   856
    def subfields(self, form):
3d8c62e5e2d4 [R forms] use a subfields(form) method to get a chance to adapt to context
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2523
diff changeset
   857
        return self.fields
2568
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2549
diff changeset
   858
2523
1d245fbbeb90 some new field/widgets classes: CompoundField, IntervalWidget, HorizontalLayoutWidget
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2522
diff changeset
   859
    def actual_fields(self, form):
1d245fbbeb90 some new field/widgets classes: CompoundField, IntervalWidget, HorizontalLayoutWidget
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2522
diff changeset
   860
        return [self] + list(self.fields)
1d245fbbeb90 some new field/widgets classes: CompoundField, IntervalWidget, HorizontalLayoutWidget
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2522
diff changeset
   861
1d245fbbeb90 some new field/widgets classes: CompoundField, IntervalWidget, HorizontalLayoutWidget
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2522
diff changeset
   862
1453
a9841184be7c guess_field now takes an entity schema as first argument, not an entity class
sylvain.thenault@logilab.fr
parents: 1437
diff changeset
   863
def guess_field(eschema, rschema, role='subject', skip_meta_attr=True, **kwargs):
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   864
    """return the most adapated widget to edit the relation
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   865
    'subjschema rschema objschema' according to information found in the schema
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   866
    """
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   867
    fieldclass = None
4014
24f7d7eb4c23 yams api update
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3890
diff changeset
   868
    rdef = eschema.rdef(rschema, role)
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   869
    if role == 'subject':
4014
24f7d7eb4c23 yams api update
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3890
diff changeset
   870
        targetschema = rdef.object
3689
deb13e88e037 follow yams 0.25 api changes to improve performance
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3575
diff changeset
   871
        if rschema.final:
4069
5d149ba65dd0 fix guess_field to handle non internationalizable definition
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 4044
diff changeset
   872
            if rdef.get('internationalizable'):
2095
897732d3ee5a avoid overriding specified values when guessing field
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2091
diff changeset
   873
                kwargs.setdefault('internationalizable', True)
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   874
    else:
4014
24f7d7eb4c23 yams api update
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3890
diff changeset
   875
        targetschema = rdef.subject
4044
3876c894e018 card referenced later
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4023
diff changeset
   876
    card = rdef.role_cardinality(role)
1095
6917ebe281e9 test and fix guess_field, some pylint fixes
sylvain.thenault@logilab.fr
parents: 1081
diff changeset
   877
    kwargs['required'] = card in '1+'
6917ebe281e9 test and fix guess_field, some pylint fixes
sylvain.thenault@logilab.fr
parents: 1081
diff changeset
   878
    kwargs['name'] = rschema.type
4165
eb9acad29407 proper field's role handling: may be 'subject' / 'object' *in case
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4162
diff changeset
   879
    kwargs['role'] = role
3308
88f5f89d8d1b fix generated label for object relation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3299
diff changeset
   880
    if role == 'object':
3574
f179ccbd13e6 [forms] fix generated label for fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3563
diff changeset
   881
        kwargs.setdefault('label', (eschema.type, rschema.type + '_object'))
3308
88f5f89d8d1b fix generated label for object relation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3299
diff changeset
   882
    else:
3574
f179ccbd13e6 [forms] fix generated label for fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3563
diff changeset
   883
        kwargs.setdefault('label', (eschema.type, rschema.type))
3385
68953ecddd2b [forms] work-in-progress: let guess_field and RichTextField.get_format_field handle eidparam of meta fields
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3384
diff changeset
   884
    kwargs['eidparam'] = True
4014
24f7d7eb4c23 yams api update
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3890
diff changeset
   885
    kwargs.setdefault('help', rdef.description)
3689
deb13e88e037 follow yams 0.25 api changes to improve performance
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3575
diff changeset
   886
    if rschema.final:
1104
58f27c3c0167 more guess_field tests and fixes
sylvain.thenault@logilab.fr
parents: 1101
diff changeset
   887
        if skip_meta_attr and rschema in eschema.meta_attributes():
1095
6917ebe281e9 test and fix guess_field, some pylint fixes
sylvain.thenault@logilab.fr
parents: 1081
diff changeset
   888
            return None
6917ebe281e9 test and fix guess_field, some pylint fixes
sylvain.thenault@logilab.fr
parents: 1081
diff changeset
   889
        fieldclass = FIELDS[targetschema]
6917ebe281e9 test and fix guess_field, some pylint fixes
sylvain.thenault@logilab.fr
parents: 1081
diff changeset
   890
        if fieldclass is StringField:
1104
58f27c3c0167 more guess_field tests and fixes
sylvain.thenault@logilab.fr
parents: 1101
diff changeset
   891
            if eschema.has_metadata(rschema, 'format'):
58f27c3c0167 more guess_field tests and fixes
sylvain.thenault@logilab.fr
parents: 1101
diff changeset
   892
                # use RichTextField instead of StringField if the attribute has
58f27c3c0167 more guess_field tests and fixes
sylvain.thenault@logilab.fr
parents: 1101
diff changeset
   893
                # a "format" metadata. But getting information from constraints
58f27c3c0167 more guess_field tests and fixes
sylvain.thenault@logilab.fr
parents: 1101
diff changeset
   894
                # may be useful anyway...
4014
24f7d7eb4c23 yams api update
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3890
diff changeset
   895
                for cstr in rdef.constraints:
1104
58f27c3c0167 more guess_field tests and fixes
sylvain.thenault@logilab.fr
parents: 1101
diff changeset
   896
                    if isinstance(cstr, StaticVocabularyConstraint):
58f27c3c0167 more guess_field tests and fixes
sylvain.thenault@logilab.fr
parents: 1101
diff changeset
   897
                        raise Exception('rich text field with static vocabulary')
58f27c3c0167 more guess_field tests and fixes
sylvain.thenault@logilab.fr
parents: 1101
diff changeset
   898
                return RichTextField(**kwargs)
1574
0c6dbb774f54 drop text field usage
sylvain.thenault@logilab.fr
parents: 1573
diff changeset
   899
            # init StringField parameters according to constraints
4014
24f7d7eb4c23 yams api update
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3890
diff changeset
   900
            for cstr in rdef.constraints:
1574
0c6dbb774f54 drop text field usage
sylvain.thenault@logilab.fr
parents: 1573
diff changeset
   901
                if isinstance(cstr, StaticVocabularyConstraint):
1577
25b46db3cb81 should set field's choices
sylvain.thenault@logilab.fr
parents: 1574
diff changeset
   902
                    kwargs.setdefault('choices', cstr.vocabulary)
1986
96c0e56cb0cf move widget selection's logic on fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   903
                    break
4014
24f7d7eb4c23 yams api update
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3890
diff changeset
   904
            for cstr in rdef.constraints:
1574
0c6dbb774f54 drop text field usage
sylvain.thenault@logilab.fr
parents: 1573
diff changeset
   905
                if isinstance(cstr, SizeConstraint) and cstr.max is not None:
0c6dbb774f54 drop text field usage
sylvain.thenault@logilab.fr
parents: 1573
diff changeset
   906
                    kwargs['max_length'] = cstr.max
0c6dbb774f54 drop text field usage
sylvain.thenault@logilab.fr
parents: 1573
diff changeset
   907
            return StringField(**kwargs)
1104
58f27c3c0167 more guess_field tests and fixes
sylvain.thenault@logilab.fr
parents: 1101
diff changeset
   908
        if fieldclass is FileField:
4160
3fbdeef9a610 cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4159
diff changeset
   909
            for metadata in KNOWN_METAATTRIBUTES:
1104
58f27c3c0167 more guess_field tests and fixes
sylvain.thenault@logilab.fr
parents: 1101
diff changeset
   910
                metaschema = eschema.has_metadata(rschema, metadata)
58f27c3c0167 more guess_field tests and fixes
sylvain.thenault@logilab.fr
parents: 1101
diff changeset
   911
                if metaschema is not None:
1453
a9841184be7c guess_field now takes an entity schema as first argument, not an entity class
sylvain.thenault@logilab.fr
parents: 1437
diff changeset
   912
                    kwargs['%s_field' % metadata] = guess_field(eschema, metaschema,
1104
58f27c3c0167 more guess_field tests and fixes
sylvain.thenault@logilab.fr
parents: 1101
diff changeset
   913
                                                                skip_meta_attr=False)
1095
6917ebe281e9 test and fix guess_field, some pylint fixes
sylvain.thenault@logilab.fr
parents: 1081
diff changeset
   914
        return fieldclass(**kwargs)
6917ebe281e9 test and fix guess_field, some pylint fixes
sylvain.thenault@logilab.fr
parents: 1081
diff changeset
   915
    return RelationField.fromcardinality(card, **kwargs)
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   916
1986
96c0e56cb0cf move widget selection's logic on fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   917
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   918
FIELDS = {
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   919
    'Boolean':  BooleanField,
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   920
    'Bytes':    FileField,
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   921
    'Date':     DateField,
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   922
    'Datetime': DateTimeField,
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   923
    'Int':      IntField,
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   924
    'Float':    FloatField,
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   925
    'Decimal':  StringField,
4159
6b2b20c73d59 refactor form field value handling, to get a nicer api and an easier algorithm to get field's value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4158
diff changeset
   926
    'Password': PasswordField,
1081
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   927
    'String' :  StringField,
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   928
    'Time':     TimeField,
f2a85f52b9e5 move fields and widgets to their own module
sylvain.thenault@logilab.fr
parents:
diff changeset
   929
    }