--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/web/uihelper.py Thu Oct 27 18:19:00 2011 +0200
@@ -0,0 +1,335 @@
+# copyright 2011 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
+# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
+#
+# This file is part of CubicWeb.
+#
+# CubicWeb is free software: you can redistribute it and/or modify it under the
+# terms of the GNU Lesser General Public License as published by the Free
+# Software Foundation, either version 2.1 of the License, or (at your option)
+# any later version.
+#
+# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Lesser General Public License along
+# with CubicWeb. If not, see <http://www.gnu.org/licenses/>.
+"""This module provide highlevel helpers to avoid uicfg boilerplate
+for most common tasks such as fields ordering, widget customization, etc.
+
+
+Here are a few helpers to customize *action box* rendering:
+
+.. autofunction:: cubicweb.web.uihelper.append_to_addmenu
+.. autofunction:: cubicweb.web.uihelper.remove_from_addmenu
+
+
+and a few other ones for *form configuration*:
+
+.. autofunction:: cubicweb.web.uihelper.set_fields_order
+.. autofunction:: cubicweb.web.uihelper.hide_field
+.. autofunction:: cubicweb.web.uihelper.hide_fields
+.. autofunction:: cubicweb.web.uihelper.set_field_kwargs
+.. autofunction:: cubicweb.web.uihelper.set_field
+.. autofunction:: cubicweb.web.uihelper.edit_inline
+.. autofunction:: cubicweb.web.uihelper.edit_as_attr
+.. autofunction:: cubicweb.web.uihelper.set_muledit_editable
+
+The module also provides a :class:`FormConfig` base class that lets you gather
+uicfg declaration in the scope of a single class, which can sometimes
+be clearer to read than a bunch of sequential function calls.
+
+.. autoclass:: cubicweb.web.uihelper.FormConfig
+
+"""
+__docformat__ = "restructuredtext en"
+
+from cubicweb.web import uicfg
+from functools import partial
+
+def _tag_rel(rtag, etype, attr, desttype='*', *args, **kwargs):
+ if isinstance(attr, basestring):
+ attr, role = attr, 'subject'
+ else:
+ attr, role = attr
+ if role == 'subject':
+ rtag.tag_subject_of((etype, attr, desttype), *args, **kwargs)
+ else:
+ rtag.tag_object_of((desttype, attr, etype), *args, **kwargs)
+
+
+## generic uicfg helpers ######################################################
+def append_to_addmenu(etype, attr, createdtype='*'):
+ """adds `attr` in the actions box *addrelated* submenu of `etype`.
+
+ :param etype: the entity type as a string
+ :param attr: the name of the attribute or relation to hide
+
+ `attr` can be a string or 2-tuple (relname, role_of_etype_in_the_relation)
+
+ """
+ _tag_rel(uicfg.actionbox_appearsin_addmenu, etype, attr, createdtype, True)
+
+def remove_from_addmenu(etype, attr, createdtype='*'):
+ """removes `attr` from the actions box *addrelated* submenu of `etype`.
+
+ :param etype: the entity type as a string
+ :param attr: the name of the attribute or relation to hide
+
+ `attr` can be a string or 2-tuple (relname, role_of_etype_in_the_relation)
+ """
+ _tag_rel(uicfg.actionbox_appearsin_addmenu, etype, attr, createdtype, False)
+
+
+## form uicfg helpers ##########################################################
+def set_fields_order(etype, attrs):
+ """specify the field order in `etype` main edition form.
+
+ :param etype: the entity type as a string
+ :param attrs: the ordered list of attribute names (or relations)
+
+ `attrs` can be strings or 2-tuples (relname, role_of_etype_in_the_relation)
+
+ Unspecified fields will be displayed after specified ones, their
+ order being consistent with the schema definition.
+
+ Examples:
+
+.. sourcecode:: python
+
+ from cubicweb.web import uihelper
+ uihelper.set_fields_order('CWUser', ('firstname', 'surname', 'login'))
+ uihelper.set_fields_order('CWUser', ('firstname', ('in_group', 'subject'), 'surname', 'login'))
+
+ """
+ afk = uicfg.autoform_field_kwargs
+ for index, attr in enumerate(attrs):
+ _tag_rel(afk, etype, attr, '*', {'order': index})
+
+
+def hide_field(etype, attr, desttype='*', formtype='main'):
+ """hide `attr` in `etype` forms.
+
+ :param etype: the entity type as a string
+ :param attr: the name of the attribute or relation to hide
+ :param formtype: which form will be affected ('main', 'inlined', etc.), *main* by default.
+
+ `attr` can be a string or 2-tuple (relname, role_of_etype_in_the_relation)
+
+ Examples:
+
+.. sourcecode:: python
+
+ from cubicweb.web import uihelper
+ uihelper.hide_field('CWUser', 'login')
+ uihelper.hide_field('*', 'name')
+ uihelper.hide_field('CWUser', 'use_email', formtype='inlined')
+
+ """
+ _tag_rel(uicfg.autoform_section, etype, attr, desttype,
+ formtype=formtype, section='hidden')
+
+
+def hide_fields(etype, attrs, formtype='main'):
+ """simple for-loop wrapper around :func:`hide_field`.
+
+ :param etype: the entity type as a string
+ :param attrs: the ordered list of attribute names (or relations)
+ :param formtype: which form will be affected ('main', 'inlined', etc.), *main* by default.
+
+ `attrs` can be strings or 2-tuples (relname, role_of_etype_in_the_relation)
+
+ Examples:
+
+.. sourcecode:: python
+
+ from cubicweb.web import uihelper
+ uihelper.hide_fields('CWUser', ('login', ('use_email', 'subject')), formtype='inlined')
+ """
+ for field in fields:
+ hide_field(etype, field, formtype=formtype)
+
+
+def set_field_kwargs(etype, attr, **kwargs):
+ """tag `attr` field of `etype` with additional named paremeters.
+
+ :param etype: the entity type as a string
+ :param attr: the name of the attribute or relation
+
+ `attr` can be a string or 2-tuple (relname, role_of_etype_in_the_relation)
+
+ Examples:
+
+.. sourcecode:: python
+
+ from cubicweb.web import uihelper, formwidgets as fwdgs
+
+ uihelper.set_field_kwargs('Person', 'works_for', widget=fwdgs.AutoCompletionWidget())
+ uihelper.set_field_kwargs('CWUser', 'login', label=_('login or email address'),
+ widget=fwdgs.TextInput(attrs={'size': 30}))
+ """
+ _tag_rel(uicfg.autoform_field_kwargs, etype, attr, '*', kwargs)
+
+
+def set_field(etype, attr, field):
+ """sets the `attr` field of `etype`.
+
+ :param etype: the entity type as a string
+ :param attr: the name of the attribute or relation
+
+ `attr` can be a string or 2-tuple (relname, role_of_etype_in_the_relation)
+
+ """
+ _tag_rel(uicfg.autoform_field, etype, attr, '*', field)
+
+
+def edit_inline(etype, attr, desttype='*', formtype=('main', 'inlined')):
+ """edit `attr` with and inlined form.
+
+ :param etype: the entity type as a string
+ :param attr: the name of the attribute or relation
+ :param desttype: the destination type(s) concerned, default is everything
+ :param formtype: which form will be affected ('main', 'inlined', etc.), *main* and *inlined* by default.
+
+ `attr` can be a string or 2-tuple (relname, role_of_etype_in_the_relation)
+
+ Examples:
+
+.. sourcecode:: python
+
+ from cubicweb.web import uihelper
+
+ uihelper.edit_inline('*', 'use_email')
+ """
+ _tag_rel(uicfg.autoform_section, etype, attr, desttype,
+ formtype=formtype, section='inlined')
+
+
+def edit_as_attr(etype, attr, desttype='*', formtype=('main', 'muledit')):
+ """make `attr` appear in the *attributes* section of `etype` form.
+
+ :param etype: the entity type as a string
+ :param attr: the name of the attribute or relation
+ :param desttype: the destination type(s) concerned, default is everything
+ :param formtype: which form will be affected ('main', 'inlined', etc.), *main* and *muledit* by default.
+
+ `attr` can be a string or 2-tuple (relname, role_of_etype_in_the_relation)
+
+ Examples:
+
+.. sourcecode:: python
+
+ from cubicweb.web import uihelper
+
+ uihelper.edit_as_attr('CWUser', 'in_group')
+ """
+ _tag_rel(uicfg.autoform_section, etype, attr, desttype,
+ formtype=formtype, section='attributes')
+
+
+def set_muledit_editable(etype, attrs):
+ """make `attrs` appear in muledit form of `etype`.
+
+ :param etype: the entity type as a string
+ :param attrs: the ordered list of attribute names (or relations)
+
+ `attrs` can be strings or 2-tuples (relname, role_of_etype_in_the_relation)
+
+ Examples:
+
+.. sourcecode:: python
+
+ from cubicweb.web import uihelper
+
+ uihelper.set_muledit_editable('CWUser', ('firstname', 'surname', 'in_group'))
+ """
+ for attr in attrs:
+ edit_as_attr(etype, attr, formtype='muledit')
+
+
+class meta_formconfig(type):
+ """metaclass of FormConfig classes, only for easier declaration purpose"""
+ def __init__(cls, name, bases, classdict):
+ if cls.etype is None:
+ return
+ for attr_role in cls.hidden:
+ hide_field(cls.etype, attr_role, formtype=cls.formtype)
+ for attr_role in cls.rels_as_attrs:
+ edit_as_attr(cls.etype, attr_role, formtype=cls.formtype)
+ for attr_role in cls.inlined:
+ edit_inline(cls.etype, attr_role, formtype=cls.formtype)
+ for rtype, widget in cls.widgets.items():
+ set_field_kwargs(cls.etype, rtype, widget=widget)
+ for rtype, field in cls.fields.items():
+ set_field(cls.etype, rtype, field)
+ set_fields_order(cls.etype, cls.fields_order)
+ super(meta_formconfig, cls).__init__(name, bases, classdict)
+
+
+class FormConfig:
+ """helper base class to define uicfg rules on a given entity type.
+
+ In all descriptions below, attributes list can either be a list of
+ attribute names of a list of 2-tuples (relation name, role of
+ the edited entity in the relation).
+
+ **Attributes**
+
+ :attr:`etype`
+ which entity type the form config is for. This attribute is **mandatory**
+
+ :attr:`formtype`
+ the formtype the class tries toc customize (i.e. *main*, *inlined*, or *muledit*),
+ default is *main*.
+
+ :attr:`hidden`
+ the list of attributes or relations to hide.
+
+ :attr:`rels_as_attrs`
+ the list of attributes to edit in the *attributes* section.
+
+ :attr:`inlined`
+ the list of attributes to edit in the *inlined* section.
+
+ :attr:`fields_order`
+ the list of attributes to edit, in the desired order. Unspecified
+ fields will be displayed after specified ones, their order
+ being consistent with the schema definition.
+
+ :attr:`widgets`
+ a dictionnary mapping attribute names to widget instances.
+
+ :attr:`fields`
+ a dictionnary mapping attribute names to field instances.
+
+ Examples:
+
+.. sourcecode:: python
+
+ from cubicweb.web import uihelper, formwidgets as fwdgs
+
+ class LinkFormConfig(uihelper.FormConfig):
+ etype = 'Link'
+ hidden = ('title', 'description', 'embed')
+ widgets = dict(
+ url=fwdgs.TextInput(attrs={'size':40}),
+ )
+
+ class UserFormConfig(uihelper.FormConfig):
+ etype = 'CWUser'
+ hidden = ('login',)
+ rels_as_attrs = ('in_group',)
+ fields_order = ('firstname', 'surname', 'in_group', 'use_email')
+ inlined = ('use_email',)
+
+ """
+ __metaclass__ = meta_formconfig
+ formtype = 'main'
+ etype = None # must be defined in concrete subclasses
+ hidden = ()
+ rels_as_attrs = ()
+ inlined = ()
+ fields_order = ()
+ widgets = {}
+ fields = {}