web/views/editviews.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Thu, 20 Aug 2009 17:52:22 +0200
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"""Some views used to help to the edition process
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:organization: Logilab
1977
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:copyright: 2001-2009 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
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:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
1977
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:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
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"""
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__docformat__ = "restructuredtext en"
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_ = unicode
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from simplejson import dumps
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from logilab.common.decorators import cached
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from logilab.mtconverter import xml_escape
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from cubicweb import typed_eid
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from cubicweb.view import EntityView
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from cubicweb.selectors import (one_line_rset, non_final_entity,
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                                match_search_state, match_form_params)
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from cubicweb.common.uilib import cut
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from cubicweb.web.views import linksearch_select_url
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from cubicweb.web.views.editforms import relation_id
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from cubicweb.web.views.baseviews import FinalView
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class SearchForAssociationView(EntityView):
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    """view called by the edition view when the user asks to search for
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    something to link to the edited eid
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    """
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    id = 'search-associate'
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    __select__ = (one_line_rset() & match_search_state('linksearch')
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                  & non_final_entity())
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    title = _('search for association')
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    def cell_call(self, row, col):
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        rset, vid, divid, paginate = self.filter_box_context_info()
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        self.rset = rset
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        self.w(u'<div id="%s">' % divid)
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        self.paginate()
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        self.wview(vid, rset, 'noresult')
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        self.w(u'</div>')
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    @cached
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    def filter_box_context_info(self):
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        entity = self.entity(0, 0)
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        role, eid, rtype, etype = self.req.search_state[1]
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        assert entity.eid == typed_eid(eid)
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        # the default behaviour is to fetch all unrelated entities and display
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        # them. Use fetch_order and not fetch_unrelated_order as sort method
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        # since the latter is mainly there to select relevant items in the combo
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        # box, it doesn't give interesting result in this context
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        rql = entity.unrelated_rql(rtype, etype, role,
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                                   ordermethod='fetch_order',
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                                   vocabconstraints=False)
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        rset = self.req.execute(rql, {'x' : entity.eid}, 'x')
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        return rset, 'list', "search-associate-content", True
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class OutOfContextSearch(EntityView):
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    id = 'outofcontext-search'
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    def cell_call(self, row, col):
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        entity = self.entity(row, col)
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        erset = entity.as_rset()
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        if self.req.match_search_state(erset):
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            self.w(u'<a href="%s" title="%s">%s</a>&nbsp;<a href="%s" title="%s">[...]</a>' % (
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                xml_escape(linksearch_select_url(self.req, erset)),
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                self.req._('select this entity'),
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                xml_escape(entity.view('textoutofcontext')),
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                xml_escape(entity.absolute_url(vid='primary')),
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                self.req._('view detail for this entity')))
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        else:
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            entity.view('outofcontext', w=self.w)
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class UnrelatedDivs(EntityView):
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    id = 'unrelateddivs'
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    __select__ = match_form_params('relation')
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    def cell_call(self, row, col):
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        entity = self.entity(row, col)
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        relname, target = self.req.form.get('relation').rsplit('_', 1)
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        rschema = self.schema.rschema(relname)
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        hidden = 'hidden' in self.req.form
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        is_cell = 'is_cell' in self.req.form
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        self.w(self.build_unrelated_select_div(entity, rschema, target,
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                                               is_cell=is_cell, hidden=hidden))
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    def build_unrelated_select_div(self, entity, rschema, target,
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                                   is_cell=False, hidden=True):
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        options = []
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        divid = 'div%s_%s_%s' % (rschema.type, target, entity.eid)
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        selectid = 'select%s_%s_%s' % (rschema.type, target, entity.eid)
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        if rschema.symetric or target == 'subject':
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            targettypes = rschema.objects(entity.e_schema)
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            etypes = '/'.join(sorted(etype.display_name(self.req) for etype in targettypes))
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        else:
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            targettypes = rschema.subjects(entity.e_schema)
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            etypes = '/'.join(sorted(etype.display_name(self.req) for etype in targettypes))
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        etypes = cut(etypes, self.req.property_value('navigation.short-line-size'))
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        options.append('<option>%s %s</option>' % (self.req._('select a'), etypes))
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        options += self._get_select_options(entity, rschema, target)
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        options += self._get_search_options(entity, rschema, target, targettypes)
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        if 'Basket' in self.schema: # XXX
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            options += self._get_basket_options(entity, rschema, target, targettypes)
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        relname, target = self.req.form.get('relation').rsplit('_', 1)
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        return u"""\
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<div class="%s" id="%s">
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  <select id="%s" onchange="javascript: addPendingInsert(this.options[this.selectedIndex], %s, %s, '%s');">
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    %s
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  </select>
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</div>
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""" % (hidden and 'hidden' or '', divid, selectid,
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       xml_escape(dumps(entity.eid)), is_cell and 'true' or 'null', relname,
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       '\n'.join(options))
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   116
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    def _get_select_options(self, entity, rschema, target):
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        """add options to search among all entities of each possible type"""
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        options = []
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        eid = entity.eid
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        pending_inserts = self.req.get_pending_inserts(eid)
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        rtype = rschema.type
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        form = self.vreg['forms'].select('edition', self.req, entity=entity)
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        field = form.field_by_name(rschema, target, entity.e_schema)
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        limit = self.req.property_value('navigation.combobox-limit')
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        for eview, reid in form.form_field_vocabulary(field, limit):
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            if reid is None:
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                options.append('<option class="separator">-- %s --</option>'
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                               % xml_escape(eview))
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            else:
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                optionid = relation_id(eid, rtype, target, reid)
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                if optionid not in pending_inserts:
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                    # prefix option's id with letters to make valid XHTML wise
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                    options.append('<option id="id%s" value="%s">%s</option>' %
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                                   (optionid, reid, xml_escape(eview)))
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        return options
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   137
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    def _get_search_options(self, entity, rschema, target, targettypes):
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        """add options to search among all entities of each possible type"""
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        options = []
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        _ = self.req._
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        for eschema in targettypes:
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            mode = '%s:%s:%s:%s' % (target, entity.eid, rschema.type, eschema)
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            url = self.build_url(entity.rest_path(), vid='search-associate',
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                                 __mode=mode)
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            options.append((eschema.display_name(self.req),
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                            '<option value="%s">%s %s</option>' % (
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                xml_escape(url), _('Search for'), eschema.display_name(self.req))))
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        return [o for l, o in sorted(options)]
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    def _get_basket_options(self, entity, rschema, target, targettypes):
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        options = []
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        rtype = rschema.type
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        _ = self.req._
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        for basketeid, basketname in self._get_basket_links(self.req.user.eid,
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                                                            target, targettypes):
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            optionid = relation_id(entity.eid, rtype, target, basketeid)
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            options.append('<option id="%s" value="%s">%s %s</option>' % (
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                optionid, basketeid, _('link to each item in'), xml_escape(basketname)))
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        return options
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   161
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    def _get_basket_links(self, ueid, target, targettypes):
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        targettypes = set(targettypes)
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        for basketeid, basketname, elements in self._get_basket_info(ueid):
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            baskettypes = elements.column_types(0)
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            # if every elements in the basket can be attached to the
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            # edited entity
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            if baskettypes & targettypes:
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                yield basketeid, basketname
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    def _get_basket_info(self, ueid):
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        basketref = []
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        basketrql = 'Any B,N WHERE B is Basket, B owned_by U, U eid %(x)s, B name N'
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        basketresultset = self.req.execute(basketrql, {'x': ueid}, 'x')
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        for result in basketresultset:
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            basketitemsrql = 'Any X WHERE X in_basket B, B eid %(x)s'
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            rset = self.req.execute(basketitemsrql, {'x': result[0]}, 'x')
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            basketref.append((result[0], result[1], rset))
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        return basketref
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   181
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class ComboboxView(EntityView):
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    """the view used in combobox (unrelated entities)
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    THIS IS A TEXT VIEW. DO NOT HTML_ESCAPE
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    """
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    id = 'combobox'
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    title = None
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   189
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    def cell_call(self, row, col):
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        """the combo-box view for an entity: same as text out of context view
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        by default
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        """
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        self.wview('textoutofcontext', self.rset, row=row, col=col)
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class EditableFinalView(FinalView):
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    """same as FinalView but enables inplace-edition when possible"""
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    id = 'editable-final'
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    def cell_call(self, row, col, props=None, displaytime=False):
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        entity, rtype = self.rset.related_entity(row, col)
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   203
        if entity is not None:
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            self.w(entity.view('reledit', rtype=rtype))
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        else:
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            super(EditableFinalView, self).cell_call(row, col, props, displaytime)