web/form.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Tue, 26 Jan 2010 13:26:41 +0100
changeset 4362 817851a77e27
parent 4252 6c4f109c2b03
child 4668 9f82f81bf13d
permissions -rw-r--r--
incontext view of EmailAddress is a mailto: link
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
     1
"""abstract form classes for CubicWeb web client
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
     2
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
     3
:organization: Logilab
4212
ab6573088b4a update copyright: welcome 2010
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3925
diff changeset
     4
:copyright: 2001-2010 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
     5
:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
1977
606923dff11b big bunch of copyright / docstring update
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 1962
diff changeset
     6
:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
     7
"""
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
     8
__docformat__ = "restructuredtext en"
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
     9
4224
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
    10
from warnings import warn
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
    11
3512
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
    12
from logilab.common.decorators import iclassmethod
4224
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
    13
from logilab.common.deprecation import deprecated
3512
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
    14
2656
a93ae0f6c0ad R [base classes] only AppObject remaning, no more AppRsetObject
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2005
diff changeset
    15
from cubicweb.appobject import AppObject
1133
8a409ea0c9ec more linting
sylvain.thenault@logilab.fr
parents: 1132
diff changeset
    16
from cubicweb.view import NOINDEX, NOFOLLOW
4023
eae23c40627a drop common subpackage
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4003
diff changeset
    17
from cubicweb import tags
2005
e8032965f37a turn every form class into appobject. They should not be instantiated manually anymore.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1995
diff changeset
    18
from cubicweb.web import stdmsgs, httpcache, formfields
1995
ec95eaa2b711 turn renderers into appobjects
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
    19
1097
611bacbbe001 pylint fixes, media definitions on form as well
sylvain.thenault@logilab.fr
parents: 1082
diff changeset
    20
1318
50e1a778c5ee new FormViewMixIn class, cleanup FormMixIn (to remove once cubes doesn't use it anymore)
sylvain.thenault@logilab.fr
parents: 1315
diff changeset
    21
class FormViewMixIn(object):
50e1a778c5ee new FormViewMixIn class, cleanup FormMixIn (to remove once cubes doesn't use it anymore)
sylvain.thenault@logilab.fr
parents: 1315
diff changeset
    22
    """abstract form view mix-in"""
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
    23
    category = 'form'
1995
ec95eaa2b711 turn renderers into appobjects
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
    24
    http_cache_manager = httpcache.NoHTTPCacheManager
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
    25
    add_to_breadcrumbs = False
1437
ea75dfe32317 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1406
diff changeset
    26
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
    27
    def html_headers(self):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
    28
        """return a list of html headers (eg something to be inserted between
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
    29
        <head> and </head> of the returned page
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
    30
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
    31
        by default forms are neither indexed nor followed
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
    32
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
    33
        return [NOINDEX, NOFOLLOW]
1437
ea75dfe32317 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1406
diff changeset
    34
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
    35
    def linkable(self):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
    36
        """override since forms are usually linked by an action,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
    37
        so we don't want them to be listed by appli.possible_views
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
    38
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
    39
        return False
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
    40
1318
50e1a778c5ee new FormViewMixIn class, cleanup FormMixIn (to remove once cubes doesn't use it anymore)
sylvain.thenault@logilab.fr
parents: 1315
diff changeset
    41
844
8ab6f64c3750 start django like forms
sylvain.thenault@logilab.fr
parents: 765
diff changeset
    42
###############################################################################
8ab6f64c3750 start django like forms
sylvain.thenault@logilab.fr
parents: 765
diff changeset
    43
8ab6f64c3750 start django like forms
sylvain.thenault@logilab.fr
parents: 765
diff changeset
    44
class metafieldsform(type):
1406
133476216f4a define self.fields before it is used ...
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 1400
diff changeset
    45
    """metaclass for FieldsForm to retrieve fields defined as class attributes
133476216f4a define self.fields before it is used ...
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 1400
diff changeset
    46
    and put them into a single ordered list: '_fields_'.
1393
ff6758d7b96f cleanup, more docstring
sylvain.thenault@logilab.fr
parents: 1392
diff changeset
    47
    """
844
8ab6f64c3750 start django like forms
sylvain.thenault@logilab.fr
parents: 765
diff changeset
    48
    def __new__(mcs, name, bases, classdict):
8ab6f64c3750 start django like forms
sylvain.thenault@logilab.fr
parents: 765
diff changeset
    49
        allfields = []
8ab6f64c3750 start django like forms
sylvain.thenault@logilab.fr
parents: 765
diff changeset
    50
        for base in bases:
8ab6f64c3750 start django like forms
sylvain.thenault@logilab.fr
parents: 765
diff changeset
    51
            if hasattr(base, '_fields_'):
8ab6f64c3750 start django like forms
sylvain.thenault@logilab.fr
parents: 765
diff changeset
    52
                allfields += base._fields_
8ab6f64c3750 start django like forms
sylvain.thenault@logilab.fr
parents: 765
diff changeset
    53
        clsfields = (item for item in classdict.items()
2005
e8032965f37a turn every form class into appobject. They should not be instantiated manually anymore.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1995
diff changeset
    54
                     if isinstance(item[1], formfields.Field))
869
168ad6d424d1 form to edit multiple entities, use it in DeleteConfForm
sylvain.thenault@logilab.fr
parents: 867
diff changeset
    55
        for fieldname, field in sorted(clsfields, key=lambda x: x[1].creation_rank):
844
8ab6f64c3750 start django like forms
sylvain.thenault@logilab.fr
parents: 765
diff changeset
    56
            if not field.name:
869
168ad6d424d1 form to edit multiple entities, use it in DeleteConfForm
sylvain.thenault@logilab.fr
parents: 867
diff changeset
    57
                field.set_name(fieldname)
844
8ab6f64c3750 start django like forms
sylvain.thenault@logilab.fr
parents: 765
diff changeset
    58
            allfields.append(field)
8ab6f64c3750 start django like forms
sylvain.thenault@logilab.fr
parents: 765
diff changeset
    59
        classdict['_fields_'] = allfields
8ab6f64c3750 start django like forms
sylvain.thenault@logilab.fr
parents: 765
diff changeset
    60
        return super(metafieldsform, mcs).__new__(mcs, name, bases, classdict)
1270
53f35db66f88 raise specific exception
sylvain.thenault@logilab.fr
parents: 1265
diff changeset
    61
1437
ea75dfe32317 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1406
diff changeset
    62
1270
53f35db66f88 raise specific exception
sylvain.thenault@logilab.fr
parents: 1265
diff changeset
    63
class FieldNotFound(Exception):
53f35db66f88 raise specific exception
sylvain.thenault@logilab.fr
parents: 1265
diff changeset
    64
    """raised by field_by_name when a field with the given name has not been
53f35db66f88 raise specific exception
sylvain.thenault@logilab.fr
parents: 1265
diff changeset
    65
    found
53f35db66f88 raise specific exception
sylvain.thenault@logilab.fr
parents: 1265
diff changeset
    66
    """
1437
ea75dfe32317 delete-trailing-whitespaces
sylvain.thenault@logilab.fr
parents: 1406
diff changeset
    67
3475
9c07e6c48e35 [forms] drop FormMixIn deprecated in 3.2
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3451
diff changeset
    68
class Form(AppObject):
844
8ab6f64c3750 start django like forms
sylvain.thenault@logilab.fr
parents: 765
diff changeset
    69
    __metaclass__ = metafieldsform
1047
21d4d5e6aa45 make forms selectable (appobject)
sylvain.thenault@logilab.fr
parents: 1032
diff changeset
    70
    __registry__ = 'forms'
3512
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
    71
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
    72
    parent_form = None
3998
94cc7cad3d2d backport stable into default
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3524 3925
diff changeset
    73
    force_session_key = None
3512
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
    74
3475
9c07e6c48e35 [forms] drop FormMixIn deprecated in 3.2
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3451
diff changeset
    75
    def __init__(self, req, rset, **kwargs):
9c07e6c48e35 [forms] drop FormMixIn deprecated in 3.2
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3451
diff changeset
    76
        super(Form, self).__init__(req, rset=rset, **kwargs)
9c07e6c48e35 [forms] drop FormMixIn deprecated in 3.2
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3451
diff changeset
    77
        self.restore_previous_post(self.session_key())
3512
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
    78
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
    79
    @property
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
    80
    def root_form(self):
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
    81
        """return the root form"""
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
    82
        if self.parent_form is None:
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
    83
            return self
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
    84
        return self.parent_form.root_form
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
    85
3998
94cc7cad3d2d backport stable into default
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3524 3925
diff changeset
    86
    @property
4224
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
    87
    def form_valerror(self):
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
    88
        """the validation error exception if any"""
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
    89
        if self.parent_form is None:
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
    90
            return self._form_valerror
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
    91
        return self.parent_form.form_valerror
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
    92
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
    93
    @property
3998
94cc7cad3d2d backport stable into default
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3524 3925
diff changeset
    94
    def form_previous_values(self):
4224
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
    95
        """previously posted values (on validation error)"""
3998
94cc7cad3d2d backport stable into default
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3524 3925
diff changeset
    96
        if self.parent_form is None:
94cc7cad3d2d backport stable into default
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3524 3925
diff changeset
    97
            return self._form_previous_values
94cc7cad3d2d backport stable into default
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3524 3925
diff changeset
    98
        return self.parent_form.form_previous_values
94cc7cad3d2d backport stable into default
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3524 3925
diff changeset
    99
3512
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   100
    @iclassmethod
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   101
    def _fieldsattr(cls_or_self):
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   102
        if isinstance(cls_or_self, type):
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   103
            fields = cls_or_self._fields_
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   104
        else:
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   105
            fields = cls_or_self.fields
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   106
        return fields
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   107
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   108
    @iclassmethod
4165
eb9acad29407 proper field's role handling: may be 'subject' / 'object' *in case
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4082
diff changeset
   109
    def field_by_name(cls_or_self, name, role=None):
3512
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   110
        """return field with the given name and role.
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   111
        Raise FieldNotFound if the field can't be found.
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   112
        """
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   113
        for field in cls_or_self._fieldsattr():
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   114
            if field.name == name and field.role == role:
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   115
                return field
4235
49eb7e87d36d specify name *and* role when raising FieldNotFound helps debugging
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4224
diff changeset
   116
        raise FieldNotFound(name, role)
3512
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   117
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   118
    @iclassmethod
4165
eb9acad29407 proper field's role handling: may be 'subject' / 'object' *in case
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4082
diff changeset
   119
    def fields_by_name(cls_or_self, name, role=None):
3512
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   120
        """return a list of fields with the given name and role"""
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   121
        return [field for field in cls_or_self._fieldsattr()
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   122
                if field.name == name and field.role == role]
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   123
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   124
    @iclassmethod
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   125
    def remove_field(cls_or_self, field):
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   126
        """remove a field from form class or instance"""
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   127
        cls_or_self._fieldsattr().remove(field)
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   128
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   129
    @iclassmethod
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   130
    def append_field(cls_or_self, field):
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   131
        """append a field to form class or instance"""
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   132
        cls_or_self._fieldsattr().append(field)
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   133
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   134
    @iclassmethod
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   135
    def insert_field_before(cls_or_self, new_field, name, role='subject'):
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   136
        field = cls_or_self.field_by_name(name, role)
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   137
        fields = cls_or_self._fieldsattr()
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   138
        fields.insert(fields.index(field), new_field)
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   139
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   140
    @iclassmethod
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   141
    def insert_field_after(cls_or_self, new_field, name, role='subject'):
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   142
        field = cls_or_self.field_by_name(name, role)
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   143
        fields = cls_or_self._fieldsattr()
2ceaa4e40348 move low-level form handling to base form class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2996
diff changeset
   144
        fields.insert(fields.index(field)+1, new_field)
3524
a3431f4e2f40 backport stable branch
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3475 3512
diff changeset
   145
1525
cc2e2cbd7019 include dom id of the form in __errorurl in case there are multiple forms in a page
sylvain.thenault@logilab.fr
parents: 1519
diff changeset
   146
    def session_key(self):
cc2e2cbd7019 include dom id of the form in __errorurl in case there are multiple forms in a page
sylvain.thenault@logilab.fr
parents: 1519
diff changeset
   147
        """return the key that may be used to store / retreive data about a
cc2e2cbd7019 include dom id of the form in __errorurl in case there are multiple forms in a page
sylvain.thenault@logilab.fr
parents: 1519
diff changeset
   148
        previous post which failed because of a validation error
cc2e2cbd7019 include dom id of the form in __errorurl in case there are multiple forms in a page
sylvain.thenault@logilab.fr
parents: 1519
diff changeset
   149
        """
3998
94cc7cad3d2d backport stable into default
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3524 3925
diff changeset
   150
        if self.force_session_key is None:
4082
c7117119e215 3.6 api update
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4023
diff changeset
   151
            return '%s#%s' % (self._cw.url(), self.domid)
3998
94cc7cad3d2d backport stable into default
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3524 3925
diff changeset
   152
        return self.force_session_key
1525
cc2e2cbd7019 include dom id of the form in __errorurl in case there are multiple forms in a page
sylvain.thenault@logilab.fr
parents: 1519
diff changeset
   153
cc2e2cbd7019 include dom id of the form in __errorurl in case there are multiple forms in a page
sylvain.thenault@logilab.fr
parents: 1519
diff changeset
   154
    def restore_previous_post(self, sessionkey):
1318
50e1a778c5ee new FormViewMixIn class, cleanup FormMixIn (to remove once cubes doesn't use it anymore)
sylvain.thenault@logilab.fr
parents: 1315
diff changeset
   155
        # get validation session data which may have been previously set.
50e1a778c5ee new FormViewMixIn class, cleanup FormMixIn (to remove once cubes doesn't use it anymore)
sylvain.thenault@logilab.fr
parents: 1315
diff changeset
   156
        # deleting validation errors here breaks form reloading (errors are
50e1a778c5ee new FormViewMixIn class, cleanup FormMixIn (to remove once cubes doesn't use it anymore)
sylvain.thenault@logilab.fr
parents: 1315
diff changeset
   157
        # no more available), they have to be deleted by application's publish
50e1a778c5ee new FormViewMixIn class, cleanup FormMixIn (to remove once cubes doesn't use it anymore)
sylvain.thenault@logilab.fr
parents: 1315
diff changeset
   158
        # method on successful commit
3451
6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3023
diff changeset
   159
        forminfo = self._cw.get_session_data(sessionkey, pop=True)
1318
50e1a778c5ee new FormViewMixIn class, cleanup FormMixIn (to remove once cubes doesn't use it anymore)
sylvain.thenault@logilab.fr
parents: 1315
diff changeset
   160
        if forminfo:
4224
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   161
            self._form_previous_values = forminfo['values']
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   162
            self._form_valerror = forminfo['error']
1318
50e1a778c5ee new FormViewMixIn class, cleanup FormMixIn (to remove once cubes doesn't use it anymore)
sylvain.thenault@logilab.fr
parents: 1315
diff changeset
   163
            # if some validation error occured on entity creation, we have to
50e1a778c5ee new FormViewMixIn class, cleanup FormMixIn (to remove once cubes doesn't use it anymore)
sylvain.thenault@logilab.fr
parents: 1315
diff changeset
   164
            # get the original variable name from its attributed eid
1710
8c717cc0b353 refactor error handling: get validation error information from a form attribute instead of req.data to avoid pb when multiple forms are displayed
sylvain.thenault@logilab.fr
parents: 1701
diff changeset
   165
            foreid = self.form_valerror.entity
1318
50e1a778c5ee new FormViewMixIn class, cleanup FormMixIn (to remove once cubes doesn't use it anymore)
sylvain.thenault@logilab.fr
parents: 1315
diff changeset
   166
            for var, eid in forminfo['eidmap'].items():
50e1a778c5ee new FormViewMixIn class, cleanup FormMixIn (to remove once cubes doesn't use it anymore)
sylvain.thenault@logilab.fr
parents: 1315
diff changeset
   167
                if foreid == eid:
1710
8c717cc0b353 refactor error handling: get validation error information from a form attribute instead of req.data to avoid pb when multiple forms are displayed
sylvain.thenault@logilab.fr
parents: 1701
diff changeset
   168
                    self.form_valerror.eid = var
1318
50e1a778c5ee new FormViewMixIn class, cleanup FormMixIn (to remove once cubes doesn't use it anymore)
sylvain.thenault@logilab.fr
parents: 1315
diff changeset
   169
                    break
50e1a778c5ee new FormViewMixIn class, cleanup FormMixIn (to remove once cubes doesn't use it anymore)
sylvain.thenault@logilab.fr
parents: 1315
diff changeset
   170
            else:
1710
8c717cc0b353 refactor error handling: get validation error information from a form attribute instead of req.data to avoid pb when multiple forms are displayed
sylvain.thenault@logilab.fr
parents: 1701
diff changeset
   171
                self.form_valerror.eid = foreid
8c717cc0b353 refactor error handling: get validation error information from a form attribute instead of req.data to avoid pb when multiple forms are displayed
sylvain.thenault@logilab.fr
parents: 1701
diff changeset
   172
        else:
3998
94cc7cad3d2d backport stable into default
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3524 3925
diff changeset
   173
            self._form_previous_values = {}
94cc7cad3d2d backport stable into default
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3524 3925
diff changeset
   174
            self._form_valerror = None
4224
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   175
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   176
    def field_error(self, field):
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   177
        """return field's error if specified in current validation exception"""
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   178
        if self.form_valerror:
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   179
            if field.eidparam and self.edited_entity.eid != self.form_valerror.eid:
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   180
                return None
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   181
            try:
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   182
                return self.form_valerror.errors.pop(field.role_name())
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   183
            except KeyError:
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   184
                if field.role and field.name in self.form_valerror:
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   185
                    warn('%s: errors key of attribute/relation should be suffixed by "-<role>"'
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   186
                         % self.form_valerror.__class__, DeprecationWarning)
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   187
                    return self.form_valerror.errors.pop(field.name)
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   188
        return None
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   189
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   190
    def remaining_errors(self):
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   191
        return sorted(self.form_valerror.errors.items())
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   192
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   193
    @deprecated('[3.6] use form.field_error and/or new renderer.render_error method')
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   194
    def form_field_error(self, field):
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   195
        """return validation error for widget's field, if any"""
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   196
        err = self.field_error(field)
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   197
        if err:
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   198
            return u'<span class="error">%s</span>' % err
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   199
        return u''
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4165
diff changeset
   200