author | Sylvain Thénault <sylvain.thenault@logilab.fr> |
Wed, 25 May 2011 08:51:45 +0200 | |
branch | stable |
changeset 7426 | 254bc099db1a |
parent 7143 | 0517e3bf0b84 |
child 7827 | 9bbf83f68bcc |
permissions | -rw-r--r-- |
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[AnyEntity] rename __linkto attribute as cw_linkto to avoid name mangling which make overriding/monkey-patching unnecessarily harder
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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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"""base application's entities class implementation: `AnyEntity`""" |
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__docformat__ = "restructuredtext en" |
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from warnings import warn |
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from logilab.common.deprecation import deprecated |
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from logilab.common.decorators import cached |
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from cubicweb import Unauthorized, typed_eid |
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from cubicweb.entity import Entity |
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class AnyEntity(Entity): |
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"""an entity instance has e_schema automagically set on the class and |
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instances have access to their issuing cursor |
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""" |
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__regid__ = 'Any' |
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__implements__ = () |
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|
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@classmethod |
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def cw_create_url(cls, req, **kwargs): |
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""" return the url of the entity creation form for this entity type""" |
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return req.build_url('add/%s' % cls.__regid__, **kwargs) |
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# meta data api ########################################################### |
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def dc_title(self): |
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"""return a suitable *unicode* title for this entity""" |
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for rschema, attrschema in self.e_schema.attribute_definitions(): |
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if rschema.meta: |
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continue |
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value = self.cw_attr_value(rschema.type) |
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if value: |
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# make the value printable (dates, floats, bytes, etc.) |
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return self.printable_value(rschema.type, value, attrschema.type, |
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format='text/plain') |
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return u'%s #%s' % (self.dc_type(), self.eid) |
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def dc_long_title(self): |
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"""return a more detailled title for this entity""" |
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return self.dc_title() |
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def dc_description(self, format='text/plain'): |
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"""return a suitable description for this entity""" |
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if 'description' in self.e_schema.subjrels: |
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return self.printable_value('description', format=format) |
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return u'' |
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||
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def dc_authors(self): |
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"""return a suitable description for the author(s) of the entity""" |
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try: |
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return ', '.join(u.name() for u in self.owned_by) |
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except Unauthorized: |
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return u'' |
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def dc_creator(self): |
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"""return a suitable description for the creator of the entity""" |
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if self.creator: |
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return self.creator.name() |
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return u'' |
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def dc_date(self, date_format=None):# XXX default to ISO 8601 ? |
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"""return latest modification date of this entity""" |
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return self._cw.format_date(self.modification_date, date_format=date_format) |
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def dc_type(self, form=''): |
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"""return the display name for the type of this entity (translated)""" |
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return self.e_schema.display_name(self._cw, form) |
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def dc_language(self): |
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"""return language used by this entity (translated)""" |
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# check if entities has internationalizable attributes |
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# XXX one is enough or check if all String attributes are internationalizable? |
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for rschema, attrschema in self.e_schema.attribute_definitions(): |
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if rschema.rdef(self.e_schema, attrschema).internationalizable: |
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return self._cw._(self._cw.user.property_value('ui.language')) |
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return self._cw._(self._cw.vreg.property_value('ui.language')) |
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@property |
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def creator(self): |
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"""return the CWUser entity which has created this entity, or None if |
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unknown or if the curent user doesn't has access to this euser |
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""" |
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try: |
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return self.created_by[0] |
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except (Unauthorized, IndexError): |
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return None |
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# abstractions making the whole things (well, some at least) working ###### |
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def sortvalue(self, rtype=None): |
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"""return a value which can be used to sort this entity or given |
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entity's attribute |
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""" |
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if rtype is None: |
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return self.dc_title().lower() |
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value = self.cw_attr_value(rtype) |
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# do not restrict to `unicode` because Bytes will return a `str` value |
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if isinstance(value, basestring): |
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return self.printable_value(rtype, format='text/plain').lower() |
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return value |
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# edition helper functions ################################################ |
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|
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def linked_to(self, rtype, role, remove=True): |
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"""if entity should be linked to another using '__linkto' form param for |
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the given relation/role, return eids of related entities |
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This method is consuming matching link-to information from form params |
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if `remove` is True (by default). Computed values are stored into a |
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`cw_linkto` attribute, a dictionary with (relation, role) as key and |
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linked eids as value. |
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""" |
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try: |
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return self.cw_linkto[(rtype, role)] |
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except AttributeError: |
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self.cw_linkto = {} |
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except KeyError: |
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pass |
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linktos = list(self._cw.list_form_param('__linkto')) |
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linkedto = [] |
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for linkto in linktos[:]: |
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ltrtype, eid, ltrole = linkto.split(':') |
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if rtype == ltrtype and role == ltrole: |
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# delete __linkto from form param to avoid it being added as |
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# hidden input |
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if remove: |
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linktos.remove(linkto) |
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self._cw.form['__linkto'] = linktos |
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linkedto.append(typed_eid(eid)) |
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self.cw_linkto[(rtype, role)] = linkedto |
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return linkedto |
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# server side helpers ##################################################### |
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0 | 154 |
# XXX: store a reference to the AnyEntity class since it is hijacked in goa |
155 |
# configuration and we need the actual reference to avoid infinite loops |
|
156 |
# in mro |
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157 |
ANYENTITY = AnyEntity |
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158 |
||
159 |
def fetch_config(fetchattrs, mainattr=None, pclass=AnyEntity, order='ASC'): |
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if pclass is ANYENTITY: |
|
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pclass = AnyEntity # AnyEntity and ANYENTITY may be different classes |
|
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if pclass is not None: |
|
163 |
fetchattrs += pclass.fetch_attrs |
|
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if mainattr is None: |
|
165 |
mainattr = fetchattrs[0] |
|
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@classmethod |
|
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def fetch_order(cls, attr, var): |
|
168 |
if attr == mainattr: |
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return '%s %s' % (var, order) |
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170 |
return None |
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return fetchattrs, fetch_order |