web/views/ajaxedit.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Wed, 28 Apr 2010 12:15:52 +0200
brancholdstable
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replace logilab-common by CubicWeb in disclaimer
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# copyright 2003-2010 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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"""Set of views allowing edition of entities/relations using ajax
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"""
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__docformat__ = "restructuredtext en"
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from cubicweb import role
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from cubicweb.selectors import match_form_params, match_kwargs
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from cubicweb.web.box import EditRelationBoxTemplate
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class AddRelationView(EditRelationBoxTemplate):
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    """base class for view which let add entities linked
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    by a given relation
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    subclasses should define at least id, rtype and target
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    class attributes.
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    """
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    __registry__ = 'views'
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    __regid__ = 'xaddrelation'
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    __select__ = (match_form_params('rtype', 'target')
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                  | match_kwargs('rtype', 'target'))
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    cw_property_defs = {} # don't want to inherit this from Box
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    expected_kwargs = form_params = ('rtype', 'target')
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    build_js = EditRelationBoxTemplate.build_reload_js_call
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0
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    def cell_call(self, row, col, rtype=None, target=None, etype=None):
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        self.rtype = rtype or self._cw.form['rtype']
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        self.target = target or self._cw.form['target']
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        self.etype = etype or self._cw.form.get('etype')
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        entity = self.cw_rset.get_entity(row, col)
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        rschema = self._cw.vreg.schema.rschema(self.rtype)
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        if not self.etype:
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            if self.target == 'object':
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                etypes = rschema.objects(entity.e_schema)
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            else:
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                etypes = rschema.subjects(entity.e_schema)
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            if len(etypes) == 1:
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                self.etype = etypes[0]
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        self.w(u'<div id="%s">' % self.__regid__)
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        self.w(u'<h1>%s</h1>' % self._cw._('relation %(relname)s of %(ent)s')
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               % {'relname': rschema.display_name(self._cw, role(self)),
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                  'ent': entity.view('incontext')})
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        self.w(u'<ul>')
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        for boxitem in self.unrelated_boxitems(entity):
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            boxitem.render(self.w)
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        self.w(u'</ul></div>')
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    def unrelated_entities(self, entity):
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        """returns the list of unrelated entities
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        if etype is not defined on the Box's class, the default
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        behaviour is to use the entity's appropraite vocabulary function
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        """
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        # use entity.unrelated if we've been asked for a particular etype
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        if getattr(self, 'etype', None):
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            rset = entity.unrelated(self.rtype, self.etype, role(self),
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                                    ordermethod='fetch_order')
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            self.pagination(self._cw, rset, w=self.w)
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            return rset.entities()
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        # in other cases, use vocabulary functions
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        entities = []
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        # XXX to update for 3.2
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        for _, eid in entity.vocabulary(self.rtype, role(self)):
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            if eid is not None:
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                rset = self._cw.eid_rset(eid)
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                entities.append(rset.get_entity(0, 0))
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        return entities