web/views/forms.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Mon, 23 Jul 2012 18:01:09 +0200
branchstable
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# copyright 2003-2011 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
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# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
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#
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# This file is part of CubicWeb.
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#
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# CubicWeb is free software: you can redistribute it and/or modify it under the
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# terms of the GNU Lesser General Public License as published by the Free
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# Software Foundation, either version 2.1 of the License, or (at your option)
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# any later version.
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#
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# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Lesser General Public License along
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# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
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"""
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Base form classes
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-----------------
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.. Note:
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   Form is the glue that bind a context to a set of fields, and is rendered
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   using a form renderer. No display is actually done here, though you'll find
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   some attributes of form that are used to control the rendering process.
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Besides the automagic form we'll see later, there are roughly two main
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form classes in |cubicweb|:
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.. autoclass:: cubicweb.web.views.forms.FieldsForm
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.. autoclass:: cubicweb.web.views.forms.EntityFieldsForm
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As you have probably guessed, choosing between them is easy. Simply ask you the
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question 'I am editing an entity or not?'. If the answer is yes, use
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:class:`EntityFieldsForm`, else use :class:`FieldsForm`.
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Actually there exists a third form class:
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.. autoclass:: cubicweb.web.views.forms.CompositeForm
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but you'll use this one rarely.
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"""
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from __future__ import with_statement
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__docformat__ = "restructuredtext en"
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from warnings import warn
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from logilab.common import dictattr, tempattr
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from logilab.common.decorators import iclassmethod, cached
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from logilab.common.compat import any
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from logilab.common.textutils import splitstrip
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from logilab.common.deprecation import deprecated
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from cubicweb import ValidationError, typed_eid
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from cubicweb.utils import support_args
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from cubicweb.predicates import non_final_entity, match_kwargs, one_line_rset
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from cubicweb.web import RequestError, ProcessFormError
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from cubicweb.web import uicfg, form, formwidgets as fwdgs
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from cubicweb.web.formfields import guess_field
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class FieldsForm(form.Form):
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    """This is the base class for fields based forms.
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    **Attributes**
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    The following attributes may be either set on subclasses or given on
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    form selection to customize the generated form:
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    :attr:`needs_js`
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      sequence of javascript files that should be added to handle this form
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      (through :meth:`~cubicweb.web.request.Request.add_js`)
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    :attr:`needs_css`
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      sequence of css files that should be added to handle this form (through
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      :meth:`~cubicweb.web.request.Request.add_css`)
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    :attr:`domid`
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      value for the "id" attribute of the <form> tag
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    :attr:`action`
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      value for the "action" attribute of the <form> tag
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    :attr:`onsubmit`
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      value for the "onsubmit" attribute of the <form> tag
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    :attr:`cssclass`
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      value for the "class" attribute of the <form> tag
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    :attr:`cssstyle`
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      value for the "style" attribute of the <form> tag
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    :attr:`cwtarget`
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      value for the "cubicweb:target" attribute of the <form> tag
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    :attr:`redirect_path`
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      relative to redirect to after submitting the form
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    :attr:`copy_nav_params`
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      flag telling if navigation parameters should be copied back in hidden
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      inputs
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    :attr:`form_buttons`
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      sequence of form control (:class:`~cubicweb.web.formwidgets.Button`
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      widgets instances)
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    :attr:`form_renderer_id`
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      identifier of the form renderer to use to render the form
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    :attr:`fieldsets_in_order`
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      sequence of fieldset names , to control order
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    **Generic methods**
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    .. automethod:: cubicweb.web.form.Form.field_by_name(name, role=None)
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    .. automethod:: cubicweb.web.form.Form.fields_by_name(name, role=None)
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    **Form construction methods**
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    .. automethod:: cubicweb.web.form.Form.remove_field(field)
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    .. automethod:: cubicweb.web.form.Form.append_field(field)
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    .. automethod:: cubicweb.web.form.Form.insert_field_before(field, name, role=None)
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    .. automethod:: cubicweb.web.form.Form.insert_field_after(field, name, role=None)
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    .. automethod:: cubicweb.web.form.Form.add_hidden(name, value=None, **kwargs)
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    **Form rendering methods**
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    .. automethod:: cubicweb.web.views.forms.FieldsForm.render
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    **Form posting methods**
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    Once a form is posted, you can retrieve the form on the controller side and
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    use the following methods to ease processing. For "simple" forms, this
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    should looks like :
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    .. sourcecode :: python
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        form = self._cw.vreg['forms'].select('myformid', self._cw)
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        posted = form.process_posted()
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        # do something with the returned dictionary
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    Notice that form related to entity edition should usually use the
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    `edit` controller which will handle all the logic for you.
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    .. automethod:: cubicweb.web.views.forms.FieldsForm.process_posted
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    .. automethod:: cubicweb.web.views.forms.FieldsForm.iter_modified_fields
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    """
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    __regid__ = 'base'
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    # attributes overrideable by subclasses or through __init__
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    needs_js = ('cubicweb.ajax.js', 'cubicweb.edition.js',)
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    needs_css = ('cubicweb.form.css',)
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    action = None
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    cssclass = None
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    cssstyle = None
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    cwtarget = None
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    redirect_path = None
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    form_buttons = None
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    form_renderer_id = 'default'
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    fieldsets_in_order = None
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    @property
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    def needs_multipart(self):
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        """true if the form needs enctype=multipart/form-data"""
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        return any(field.needs_multipart for field in self.fields)
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    def _get_onsubmit(self):
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        try:
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            return self._onsubmit
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        except AttributeError:
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            return "return freezeFormButtons('%(domid)s');" % dictattr(self)
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    def _set_onsubmit(self, value):
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        self._onsubmit = value
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    onsubmit = property(_get_onsubmit, _set_onsubmit)
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    def add_media(self):
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        """adds media (CSS & JS) required by this widget"""
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        if self.needs_js:
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            self._cw.add_js(self.needs_js)
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        if self.needs_css:
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            self._cw.add_css(self.needs_css)
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    def render(self, formvalues=None, renderer=None, **kwargs):
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        """Render this form, using the `renderer` given as argument or the
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        default according to :attr:`form_renderer_id`. The rendered form is
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        returned as an unicode string.
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        `formvalues` is an optional dictionary containing values that will be
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        considered as field's value.
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        Extra keyword arguments will be given to renderer's :meth:`render` method.
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        """
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        w = kwargs.pop('w', None)
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        if w is None:
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            warn('[3.10] you should specify "w" to form.render() named arguments',
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                 DeprecationWarning, stacklevel=2)
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            data = []
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            w = data.append
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        else:
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            data = None
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        self.build_context(formvalues)
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        if renderer is None:
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            renderer = self.default_renderer()
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        if support_args(renderer.render, 'w'):
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            renderer.render(w, self, kwargs)
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        else:
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            warn('[3.10] you should add "w" as first argument o %s.render()'
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                 % renderer.__class__, DeprecationWarning)
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            w(renderer.render(self, kwargs))
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        if data is not None:
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            return '\n'.join(data)
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    def default_renderer(self):
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        return self._cw.vreg['formrenderers'].select(
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            self.form_renderer_id, self._cw,
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            rset=self.cw_rset, row=self.cw_row, col=self.cw_col or 0)
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    formvalues = None
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    def build_context(self, formvalues=None):
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        """build form context values (the .context attribute which is a
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        dictionary with field instance as key associated to a dictionary
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        containing field 'name' (qualified), 'id', 'value' (for display, always
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        a string).
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        """
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   227
        if self.formvalues is not None:
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   228
            return # already built
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        self.formvalues = formvalues or {}
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   230
        # use a copy in case fields are modified while context is built (eg
2005
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        # __linkto handling for instance)
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   232
        for field in self.fields[:]:
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   233
            for field in field.actual_fields(self):
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                field.form_init(self)
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   235
        # store used field in an hidden input for later usage by a controller
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   236
        fields = set()
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   237
        eidfields = set()
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   238
        for field in self.fields:
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   239
            if field.eidparam:
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   240
                eidfields.add(field.role_name())
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   241
            elif field.name not in self.control_fields:
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   242
                fields.add(field.role_name())
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   243
        if fields:
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   244
            self.add_hidden('_cw_fields', u','.join(fields))
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   245
        if eidfields:
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   246
            self.add_hidden('_cw_entity_fields', u','.join(eidfields),
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   247
                            eidparam=True)
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   248
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   249
    _default_form_action_path = 'edit'
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   250
    def form_action(self):
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   251
        try:
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   252
            action = self.get_action() # avoid spurious warning w/ autoform bw compat property
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diff changeset
   253
        except AttributeError:
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   254
            action = self.action
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   255
        if action is None:
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0a68e7f5829c [form] missing return...
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diff changeset
   256
            return self._cw.build_url(self._default_form_action_path)
5656
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   257
        return action
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diff changeset
   258
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   259
    # controller form processing methods #######################################
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   260
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   261
    def iter_modified_fields(self, editedfields=None, entity=None):
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   262
        """return a generator on field that has been modified by the posted
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diff changeset
   263
        form.
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   264
        """
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   265
        if editedfields is None:
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   266
            try:
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   267
                editedfields = self._cw.form['_cw_fields']
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diff changeset
   268
            except KeyError:
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diff changeset
   269
                raise RequestError(self._cw._('no edited fields specified'))
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   270
        entityform = entity and self.field_by_name.im_func.func_code.co_argcount == 4 # XXX
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   271
        for editedfield in splitstrip(editedfields):
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   272
            try:
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   273
                name, role = editedfield.split('-')
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2a164a9cf81c [exceptions] stop catching any exception in various places (closes #1942716)
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diff changeset
   274
            except Exception:
7584
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   275
                name = editedfield
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   276
                role = None
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   277
            if entityform:
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   278
                field = self.field_by_name(name, role, eschema=entity.e_schema)
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   279
            else:
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   280
                field = self.field_by_name(name, role)
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   281
            if field.has_been_modified(self):
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   282
                yield field
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   283
e1881933f366 [form, controller] closes #1787233: form should provide a method to process posted content
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   284
    def process_posted(self):
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   285
        """use this method to process the content posted by a simple form.  it
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   286
        will return a dictionary with field names as key and typed value as
e1881933f366 [form, controller] closes #1787233: form should provide a method to process posted content
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diff changeset
   287
        associated value.
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diff changeset
   288
        """
e1881933f366 [form, controller] closes #1787233: form should provide a method to process posted content
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diff changeset
   289
        with tempattr(self, 'formvalues', {}): # init fields value cache
e1881933f366 [form, controller] closes #1787233: form should provide a method to process posted content
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diff changeset
   290
            errors = []
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diff changeset
   291
            processed = {}
e1881933f366 [form, controller] closes #1787233: form should provide a method to process posted content
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diff changeset
   292
            for field in self.iter_modified_fields():
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diff changeset
   293
                try:
e1881933f366 [form, controller] closes #1787233: form should provide a method to process posted content
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diff changeset
   294
                    for field, value in field.process_posted(self):
e1881933f366 [form, controller] closes #1787233: form should provide a method to process posted content
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diff changeset
   295
                        processed[field.role_name()] = value
e1881933f366 [form, controller] closes #1787233: form should provide a method to process posted content
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diff changeset
   296
                except ProcessFormError, exc:
e1881933f366 [form, controller] closes #1787233: form should provide a method to process posted content
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diff changeset
   297
                    errors.append((field, exc))
e1881933f366 [form, controller] closes #1787233: form should provide a method to process posted content
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diff changeset
   298
            if errors:
e1881933f366 [form, controller] closes #1787233: form should provide a method to process posted content
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diff changeset
   299
                errors = dict((f.role_name(), unicode(ex)) for f, ex in errors)
e1881933f366 [form, controller] closes #1787233: form should provide a method to process posted content
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diff changeset
   300
                raise ValidationError(None, errors)
e1881933f366 [form, controller] closes #1787233: form should provide a method to process posted content
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diff changeset
   301
            return processed
e1881933f366 [form, controller] closes #1787233: form should provide a method to process posted content
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diff changeset
   302
4660
21ed77792c33 cleanup
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diff changeset
   303
4236
9260403bfe0b move autoform's field_by_name implementation on base EntityFieldsForm
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diff changeset
   304
_AFF = uicfg.autoform_field
9260403bfe0b move autoform's field_by_name implementation on base EntityFieldsForm
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diff changeset
   305
_AFF_KWARGS = uicfg.autoform_field_kwargs
2005
e8032965f37a turn every form class into appobject. They should not be instantiated manually anymore.
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   306
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diff changeset
   307
class EntityFieldsForm(FieldsForm):
5368
d321e4b62a10 [book] start documenting the HTML form system
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diff changeset
   308
    """This class is designed for forms used to edit some entities. It should
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diff changeset
   309
    handle for you all the underlying stuff necessary to properly work with the
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diff changeset
   310
    generic :class:`~cubicweb.web.views.editcontroller.EditController`.
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diff changeset
   311
    """
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diff changeset
   312
3377
dd9d292b6a6d use __regid__ instead of id on appobject classes
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diff changeset
   313
    __regid__ = 'base'
2657
de974465d381 [appobject] kill VObject class, move base selector classes to appobject
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diff changeset
   314
    __select__ = (match_kwargs('entity')
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diff changeset
   315
                  | (one_line_rset() & non_final_entity()))
2005
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parents:
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   316
    domid = 'entityForm'
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parents:
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   317
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diff changeset
   318
    @iclassmethod
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diff changeset
   319
    def field_by_name(cls_or_self, name, role=None, eschema=None):
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diff changeset
   320
        """return field with the given name and role. If field is not explicitly
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parents: 4252
diff changeset
   321
        defined for the form but `eclass` is specified, guess_field will be
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parents: 4252
diff changeset
   322
        called.
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   323
        """
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   324
        try:
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   325
            return super(EntityFieldsForm, cls_or_self).field_by_name(name, role)
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   326
        except form.FieldNotFound:
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   327
            if eschema is None or role is None or not name in eschema.schema:
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   328
                raise
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   329
            rschema = eschema.schema.rschema(name)
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   330
            # XXX use a sample target type. Document this.
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   331
            tschemas = rschema.targets(eschema, role)
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   332
            fieldcls = _AFF.etype_get(eschema, rschema, role, tschemas[0])
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   333
            kwargs = _AFF_KWARGS.etype_get(eschema, rschema, role, tschemas[0])
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   334
            if kwargs is None:
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   335
                kwargs = {}
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   336
            if fieldcls:
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   337
                if not isinstance(fieldcls, type):
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   338
                    return fieldcls # already and instance
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   339
                return fieldcls(name=name, role=role, eidparam=True, **kwargs)
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   340
            field = guess_field(eschema, rschema, role, eidparam=True, **kwargs)
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   341
            if field is None:
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   342
                raise
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   343
            return field
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   344
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   345
    def __init__(self, _cw, rset=None, row=None, col=None, **kwargs):
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   346
        try:
4206
cebdf8ee5ad7 [forms] edited_entity must be set before calling session_key()
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4134
diff changeset
   347
            self.edited_entity = kwargs.pop('entity')
4257
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   348
        except KeyError:
4252
6c4f109c2b03 backport stable branch
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4248 4212
diff changeset
   349
            self.edited_entity = rset.complete_entity(row or 0, col or 0)
2005
e8032965f37a turn every form class into appobject. They should not be instantiated manually anymore.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   350
        msg = kwargs.pop('submitmsg', None)
4257
0a9b38a492e1 fix bad merge
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   351
        super(EntityFieldsForm, self).__init__(_cw, rset, row, col, **kwargs)
4659
f8326ff98f37 [form] complete 25de2eb0432b by ignore req parameters by default for all hidden fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4658
diff changeset
   352
        self.add_hidden('__type', self.edited_entity.__regid__, eidparam=True)
f8326ff98f37 [form] complete 25de2eb0432b by ignore req parameters by default for all hidden fields
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4658
diff changeset
   353
        self.add_hidden('eid', self.edited_entity.eid)
6906
5f13aefb470b [forms] EntityFieldsForm now take extra mainentity argument, for usage with composite form (the main form) where one of the subform edits the main entity
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6584
diff changeset
   354
        # mainform default to true in parent, hence default to True
5f13aefb470b [forms] EntityFieldsForm now take extra mainentity argument, for usage with composite form (the main form) where one of the subform edits the main entity
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6584
diff changeset
   355
        if kwargs.get('mainform', True) or kwargs.get('mainentity', False):
4164
119a374c5eb4 form_add_hidden -> add_hidden
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4162
diff changeset
   356
            self.add_hidden(u'__maineid', self.edited_entity.eid)
2005
e8032965f37a turn every form class into appobject. They should not be instantiated manually anymore.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   357
            # If we need to directly attach the new object to another one
7875
65e460690139 [form, entity] refactor '__linkto', now handled by the entity form, not the entity itself. Closes #1931543
Florent Cayré <florent.cayre@gmail.com>
parents: 7815
diff changeset
   358
            if '__linkto' in self._cw.form:
2050
ce184fdb1e56 fix submit message handling in entity form
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2049
diff changeset
   359
                if msg:
3451
6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3396
diff changeset
   360
                    msg = '%s %s' % (msg, self._cw._('and linked'))
2050
ce184fdb1e56 fix submit message handling in entity form
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2049
diff changeset
   361
                else:
3451
6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3396
diff changeset
   362
                    msg = self._cw._('entity linked')
2050
ce184fdb1e56 fix submit message handling in entity form
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2049
diff changeset
   363
        if msg:
7728
0fa5ba0229cd [deprecation] __message hidden generate deprecation warning
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7632
diff changeset
   364
            msgid = self._cw.set_redirect_message(msg)
0fa5ba0229cd [deprecation] __message hidden generate deprecation warning
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7632
diff changeset
   365
            self.add_hidden('_cwmsgid', msgid)
2005
e8032965f37a turn every form class into appobject. They should not be instantiated manually anymore.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   366
7875
65e460690139 [form, entity] refactor '__linkto', now handled by the entity form, not the entity itself. Closes #1931543
Florent Cayré <florent.cayre@gmail.com>
parents: 7815
diff changeset
   367
    def add_linkto_hidden(self):
7889
6cebeb1f386a [linkto] test for main form should be done in the link_to dictionary computation, else we may get erroneous values for sub-forms
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7875
diff changeset
   368
        """add the __linkto hidden field used to directly attach the new object
7875
65e460690139 [form, entity] refactor '__linkto', now handled by the entity form, not the entity itself. Closes #1931543
Florent Cayré <florent.cayre@gmail.com>
parents: 7815
diff changeset
   369
        to an existing other one when the relation between those two is not
65e460690139 [form, entity] refactor '__linkto', now handled by the entity form, not the entity itself. Closes #1931543
Florent Cayré <florent.cayre@gmail.com>
parents: 7815
diff changeset
   370
        already present in the form.
7889
6cebeb1f386a [linkto] test for main form should be done in the link_to dictionary computation, else we may get erroneous values for sub-forms
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7875
diff changeset
   371
6cebeb1f386a [linkto] test for main form should be done in the link_to dictionary computation, else we may get erroneous values for sub-forms
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7875
diff changeset
   372
        Warning: this method must be called only when all form fields are setup
6cebeb1f386a [linkto] test for main form should be done in the link_to dictionary computation, else we may get erroneous values for sub-forms
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7875
diff changeset
   373
        """
7875
65e460690139 [form, entity] refactor '__linkto', now handled by the entity form, not the entity itself. Closes #1931543
Florent Cayré <florent.cayre@gmail.com>
parents: 7815
diff changeset
   374
        for (rtype, role), eids in self.linked_to.iteritems():
65e460690139 [form, entity] refactor '__linkto', now handled by the entity form, not the entity itself. Closes #1931543
Florent Cayré <florent.cayre@gmail.com>
parents: 7815
diff changeset
   375
            # if the relation is already setup by a form field, do not add it
65e460690139 [form, entity] refactor '__linkto', now handled by the entity form, not the entity itself. Closes #1931543
Florent Cayré <florent.cayre@gmail.com>
parents: 7815
diff changeset
   376
            # in a __linkto hidden to avoid setting it twice in the controller
65e460690139 [form, entity] refactor '__linkto', now handled by the entity form, not the entity itself. Closes #1931543
Florent Cayré <florent.cayre@gmail.com>
parents: 7815
diff changeset
   377
            try:
65e460690139 [form, entity] refactor '__linkto', now handled by the entity form, not the entity itself. Closes #1931543
Florent Cayré <florent.cayre@gmail.com>
parents: 7815
diff changeset
   378
                self.field_by_name(rtype, role)
65e460690139 [form, entity] refactor '__linkto', now handled by the entity form, not the entity itself. Closes #1931543
Florent Cayré <florent.cayre@gmail.com>
parents: 7815
diff changeset
   379
            except form.FieldNotFound:
65e460690139 [form, entity] refactor '__linkto', now handled by the entity form, not the entity itself. Closes #1931543
Florent Cayré <florent.cayre@gmail.com>
parents: 7815
diff changeset
   380
                for eid in eids:
7929
900f1627b171 [forms] fix bug in linkto refactoring (misordered arguments)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7889
diff changeset
   381
                    self.add_hidden('__linkto', '%s:%s:%s' % (rtype, eid, role))
7875
65e460690139 [form, entity] refactor '__linkto', now handled by the entity form, not the entity itself. Closes #1931543
Florent Cayré <florent.cayre@gmail.com>
parents: 7815
diff changeset
   382
65e460690139 [form, entity] refactor '__linkto', now handled by the entity form, not the entity itself. Closes #1931543
Florent Cayré <florent.cayre@gmail.com>
parents: 7815
diff changeset
   383
    def render(self, *args, **kwargs):
65e460690139 [form, entity] refactor '__linkto', now handled by the entity form, not the entity itself. Closes #1931543
Florent Cayré <florent.cayre@gmail.com>
parents: 7815
diff changeset
   384
        self.add_linkto_hidden()
65e460690139 [form, entity] refactor '__linkto', now handled by the entity form, not the entity itself. Closes #1931543
Florent Cayré <florent.cayre@gmail.com>
parents: 7815
diff changeset
   385
        return super(EntityFieldsForm, self).render(*args, **kwargs)
65e460690139 [form, entity] refactor '__linkto', now handled by the entity form, not the entity itself. Closes #1931543
Florent Cayré <florent.cayre@gmail.com>
parents: 7815
diff changeset
   386
65e460690139 [form, entity] refactor '__linkto', now handled by the entity form, not the entity itself. Closes #1931543
Florent Cayré <florent.cayre@gmail.com>
parents: 7815
diff changeset
   387
    @property
65e460690139 [form, entity] refactor '__linkto', now handled by the entity form, not the entity itself. Closes #1931543
Florent Cayré <florent.cayre@gmail.com>
parents: 7815
diff changeset
   388
    @cached
65e460690139 [form, entity] refactor '__linkto', now handled by the entity form, not the entity itself. Closes #1931543
Florent Cayré <florent.cayre@gmail.com>
parents: 7815
diff changeset
   389
    def linked_to(self):
7889
6cebeb1f386a [linkto] test for main form should be done in the link_to dictionary computation, else we may get erroneous values for sub-forms
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7875
diff changeset
   390
        # if current form is not the main form, exit immediately
6cebeb1f386a [linkto] test for main form should be done in the link_to dictionary computation, else we may get erroneous values for sub-forms
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7875
diff changeset
   391
        try:
6cebeb1f386a [linkto] test for main form should be done in the link_to dictionary computation, else we may get erroneous values for sub-forms
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7875
diff changeset
   392
            self.field_by_name('__maineid')
6cebeb1f386a [linkto] test for main form should be done in the link_to dictionary computation, else we may get erroneous values for sub-forms
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7875
diff changeset
   393
        except form.FieldNotFound:
6cebeb1f386a [linkto] test for main form should be done in the link_to dictionary computation, else we may get erroneous values for sub-forms
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7875
diff changeset
   394
            return {}
7875
65e460690139 [form, entity] refactor '__linkto', now handled by the entity form, not the entity itself. Closes #1931543
Florent Cayré <florent.cayre@gmail.com>
parents: 7815
diff changeset
   395
        linked_to = {}
65e460690139 [form, entity] refactor '__linkto', now handled by the entity form, not the entity itself. Closes #1931543
Florent Cayré <florent.cayre@gmail.com>
parents: 7815
diff changeset
   396
        for linkto in self._cw.list_form_param('__linkto'):
65e460690139 [form, entity] refactor '__linkto', now handled by the entity form, not the entity itself. Closes #1931543
Florent Cayré <florent.cayre@gmail.com>
parents: 7815
diff changeset
   397
            ltrtype, eid, ltrole = linkto.split(':')
65e460690139 [form, entity] refactor '__linkto', now handled by the entity form, not the entity itself. Closes #1931543
Florent Cayré <florent.cayre@gmail.com>
parents: 7815
diff changeset
   398
            linked_to.setdefault((ltrtype, ltrole), []).append(typed_eid(eid))
65e460690139 [form, entity] refactor '__linkto', now handled by the entity form, not the entity itself. Closes #1931543
Florent Cayré <florent.cayre@gmail.com>
parents: 7815
diff changeset
   399
        return linked_to
65e460690139 [form, entity] refactor '__linkto', now handled by the entity form, not the entity itself. Closes #1931543
Florent Cayré <florent.cayre@gmail.com>
parents: 7815
diff changeset
   400
3922
69020a7c234a refactor session_key (__errorurl) to handle cases where the form is generated throuhg an ajax call: in case of an entity form, return the entity's absolute url. Also allow to force session key value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3880
diff changeset
   401
    def session_key(self):
69020a7c234a refactor session_key (__errorurl) to handle cases where the form is generated throuhg an ajax call: in case of an entity form, return the entity's absolute url. Also allow to force session key value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3880
diff changeset
   402
        """return the key that may be used to store / retreive data about a
69020a7c234a refactor session_key (__errorurl) to handle cases where the form is generated throuhg an ajax call: in case of an entity form, return the entity's absolute url. Also allow to force session key value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3880
diff changeset
   403
        previous post which failed because of a validation error
69020a7c234a refactor session_key (__errorurl) to handle cases where the form is generated throuhg an ajax call: in case of an entity form, return the entity's absolute url. Also allow to force session key value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3880
diff changeset
   404
        """
4133
24ffe983abfc force_session_key default to None in base form class...
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3953
diff changeset
   405
        if self.force_session_key is not None:
3922
69020a7c234a refactor session_key (__errorurl) to handle cases where the form is generated throuhg an ajax call: in case of an entity form, return the entity's absolute url. Also allow to force session key value
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3880
diff changeset
   406
            return self.force_session_key
4133
24ffe983abfc force_session_key default to None in base form class...
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3953
diff changeset
   407
        # XXX if this is a json request, suppose we should redirect to the
24ffe983abfc force_session_key default to None in base form class...
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3953
diff changeset
   408
        # entity primary view
8128
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7990
diff changeset
   409
        if self._cw.ajax_request and self.edited_entity.has_eid():
4133
24ffe983abfc force_session_key default to None in base form class...
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3953
diff changeset
   410
            return '%s#%s' % (self.edited_entity.absolute_url(), self.domid)
4662
79c0788ba7f6 add XXX note
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4660
diff changeset
   411
        # XXX we should not consider some url parameters that may lead to
79c0788ba7f6 add XXX note
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4660
diff changeset
   412
        # different url after a validation error
4183
b5aa030bb2f9 use ._cw instead of .req (reintroduced by merge of stable)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4181
diff changeset
   413
        return '%s#%s' % (self._cw.url(), self.domid)
2005
e8032965f37a turn every form class into appobject. They should not be instantiated manually anymore.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   414
4164
119a374c5eb4 form_add_hidden -> add_hidden
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4162
diff changeset
   415
    def default_renderer(self):
3451
6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3396
diff changeset
   416
        return self._cw.vreg['formrenderers'].select(
6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3396
diff changeset
   417
            self.form_renderer_id, self._cw, rset=self.cw_rset, row=self.cw_row,
6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3396
diff changeset
   418
            col=self.cw_col, entity=self.edited_entity)
2005
e8032965f37a turn every form class into appobject. They should not be instantiated manually anymore.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   419
4583
356f08325072 cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4284
diff changeset
   420
    def should_display_add_new_relation_link(self, rschema, existant, card):
356f08325072 cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4284
diff changeset
   421
        return False
356f08325072 cleanup
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4284
diff changeset
   422
4167
73e649a7797d fix render (formerly form_render) prototype
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4164
diff changeset
   423
    # controller side method (eg POST reception handling)
2005
e8032965f37a turn every form class into appobject. They should not be instantiated manually anymore.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   424
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: 4156
diff changeset
   425
    def actual_eid(self, 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: 4156
diff changeset
   426
        # should be either an int (existant entity) or a variable (to be
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: 4156
diff changeset
   427
        # created entity)
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: 4156
diff changeset
   428
        assert eid or eid == 0, repr(eid) # 0 is a valid eid
2005
e8032965f37a turn every form class into appobject. They should not be instantiated manually anymore.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   429
        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: 4156
diff changeset
   430
            return typed_eid(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: 4156
diff changeset
   431
        except ValueError:
2005
e8032965f37a turn every form class into appobject. They should not be instantiated manually anymore.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   432
            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: 4156
diff changeset
   433
                return self._cw.data['eidmap'][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: 4156
diff changeset
   434
            except KeyError:
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: 4156
diff changeset
   435
                self._cw.data['eidmap'][eid] = None
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: 4156
diff changeset
   436
                return None
2005
e8032965f37a turn every form class into appobject. They should not be instantiated manually anymore.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   437
3476
6e927b729ae1 [uicfg, autoform] more consistent/powerful autoform_section rtags by using formtype/section; deprecates autoform_is_inlined; refactor automatci form and renderer thanks to this
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3467
diff changeset
   438
    def editable_relations(self):
2089
b1070848726b backport default branch fix 4ec37d33657e (EntityFieldsForm methods implementation)
Florent <florent@secondweb.fr>
parents: 2080
diff changeset
   439
        return ()
b1070848726b backport default branch fix 4ec37d33657e (EntityFieldsForm methods implementation)
Florent <florent@secondweb.fr>
parents: 2080
diff changeset
   440
2005
e8032965f37a turn every form class into appobject. They should not be instantiated manually anymore.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   441
3510
bf746bf4a394 rename form_build_context to build_context, and call it from form, not renderer
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3354
diff changeset
   442
class CompositeFormMixIn(object):
3377
dd9d292b6a6d use __regid__ instead of id on appobject classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3369
diff changeset
   443
    __regid__ = 'composite'
3467
a6405235aac6 [tests] make unittest_views_editforms pass again
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3451
diff changeset
   444
    form_renderer_id = __regid__
2005
e8032965f37a turn every form class into appobject. They should not be instantiated manually anymore.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   445
e8032965f37a turn every form class into appobject. They should not be instantiated manually anymore.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   446
    def __init__(self, *args, **kwargs):
3510
bf746bf4a394 rename form_build_context to build_context, and call it from form, not renderer
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3354
diff changeset
   447
        super(CompositeFormMixIn, self).__init__(*args, **kwargs)
2005
e8032965f37a turn every form class into appobject. They should not be instantiated manually anymore.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   448
        self.forms = []
e8032965f37a turn every form class into appobject. They should not be instantiated manually anymore.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   449
3513
c002f6488631 [form] replace is_subform by parent_form, carrying more information at the same cost
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3512
diff changeset
   450
    def add_subform(self, subform):
2005
e8032965f37a turn every form class into appobject. They should not be instantiated manually anymore.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   451
        """mark given form as a subform and append it"""
3513
c002f6488631 [form] replace is_subform by parent_form, carrying more information at the same cost
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3512
diff changeset
   452
        subform.parent_form = self
2005
e8032965f37a turn every form class into appobject. They should not be instantiated manually anymore.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   453
        self.forms.append(subform)
2920
64322aa83a1d start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2657
diff changeset
   454
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: 4156
diff changeset
   455
    def build_context(self, formvalues=None):
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: 4156
diff changeset
   456
        super(CompositeFormMixIn, self).build_context(formvalues)
3510
bf746bf4a394 rename form_build_context to build_context, and call it from form, not renderer
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3354
diff changeset
   457
        for form in self.forms:
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: 4156
diff changeset
   458
            form.build_context(formvalues)
2920
64322aa83a1d start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2657
diff changeset
   459
64322aa83a1d start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2657
diff changeset
   460
3510
bf746bf4a394 rename form_build_context to build_context, and call it from form, not renderer
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3354
diff changeset
   461
class CompositeForm(CompositeFormMixIn, FieldsForm):
5368
d321e4b62a10 [book] start documenting the HTML form system
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5367
diff changeset
   462
    """Form composed of sub-forms. Typical usage is edition of multiple entities
d321e4b62a10 [book] start documenting the HTML form system
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5367
diff changeset
   463
    at once.
d321e4b62a10 [book] start documenting the HTML form system
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5367
diff changeset
   464
    """
2920
64322aa83a1d start a new workflow engine
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2657
diff changeset
   465
3510
bf746bf4a394 rename form_build_context to build_context, and call it from form, not renderer
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3354
diff changeset
   466
class CompositeEntityForm(CompositeFormMixIn, EntityFieldsForm):
bf746bf4a394 rename form_build_context to build_context, and call it from form, not renderer
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3354
diff changeset
   467
    pass # XXX why is this class necessary?