web/views/editviews.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Wed, 20 Jan 2010 10:14:14 +0100
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merge
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"""Some views used to help to the edition process
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:organization: Logilab
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:copyright: 2001-2010 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
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:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
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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, uilib
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from cubicweb.schema import display_name
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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.web import formwidgets as fw, formfields as ff
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from cubicweb.web.views import baseviews, linksearch_select_url
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def relation_id(eid, rtype, role, reid):
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    """return an identifier for a relation between two entities"""
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    if role == 'subject':
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        return u'%s:%s:%s' % (eid, rtype, reid)
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    return u'%s:%s:%s' % (reid, rtype, eid)
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def toggleable_relation_link(eid, nodeid, label='x'):
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    """return javascript snippet to delete/undelete a relation between two
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    entities
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    """
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    js = u"javascript: togglePendingDelete('%s', %s);" % (
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        nodeid, xml_escape(dumps(eid)))
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    return u'[<a class="handle" href="%s" id="handle%s">%s</a>]' % (
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        js, nodeid, label)
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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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    __regid__ = '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.cw_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.cw_rset.get_entity(0, 0)
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        role, eid, rtype, etype = self._cw.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, args = 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._cw.execute(rql, args, tuple(args))
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        return rset, 'list', "search-associate-content", True
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class OutOfContextSearch(EntityView):
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    __regid__ = 'outofcontext-search'
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    def cell_call(self, row, col):
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        entity = self.cw_rset.get_entity(row, col)
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        erset = entity.as_rset()
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        if self._cw.match_search_state(erset):
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            self.w(u'<a href="%s" title="%s">%s</a>&#160;<a href="%s" title="%s">[...]</a>' % (
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                xml_escape(linksearch_select_url(self._cw, erset)),
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                self._cw._('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._cw._('view detail for this entity')))
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        else:
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            entity.view('outofcontext', w=self.w)
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def get_pending_inserts(req, eid=None):
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    """shortcut to access req's pending_insert entry
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    This is where are stored relations being added while editing
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    an entity. This used to be stored in a temporary cookie.
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    """
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    pending = req.get_session_data('pending_insert') or ()
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    return ['%s:%s:%s' % (subj, rel, obj) for subj, rel, obj in pending
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            if eid is None or eid in (subj, obj)]
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def get_pending_deletes(req, eid=None):
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    """shortcut to access req's pending_delete entry
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    This is where are stored relations being removed while editing
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    an entity. This used to be stored in a temporary cookie.
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    """
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    pending = req.get_session_data('pending_delete') or ()
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    return ['%s:%s:%s' % (subj, rel, obj) for subj, rel, obj in pending
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            if eid is None or eid in (subj, obj)]
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   110
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def parse_relations_descr(rdescr):
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    """parse a string describing some relations, in the form
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    subjeids:rtype:objeids
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    where subjeids and objeids are eids separeted by a underscore
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   115
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    return an iterator on (subject eid, relation type, object eid) found
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    """
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    for rstr in rdescr:
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        subjs, rtype, objs = rstr.split(':')
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        for subj in subjs.split('_'):
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            for obj in objs.split('_'):
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                yield typed_eid(subj), rtype, typed_eid(obj)
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   123
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def delete_relations(req, rdefs):
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    """delete relations from the repository"""
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    # FIXME convert to using the syntax subject:relation:eids
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    execute = req.execute
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    for subj, rtype, obj in parse_relations_descr(rdefs):
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        rql = 'DELETE X %s Y where X eid %%(x)s, Y eid %%(y)s' % rtype
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        execute(rql, {'x': subj, 'y': obj}, ('x', 'y'))
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    req.set_message(req._('relations deleted'))
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   132
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def insert_relations(req, rdefs):
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    """insert relations into the repository"""
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    execute = req.execute
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    for subj, rtype, obj in parse_relations_descr(rdefs):
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        rql = 'SET X %s Y where X eid %%(x)s, Y eid %%(y)s' % rtype
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        execute(rql, {'x': subj, 'y': obj}, ('x', 'y'))
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   139
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   140
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   141
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class GenericRelationsWidget(fw.FieldWidget):
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   143
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    def render(self, form, field, renderer):
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        stream = []
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        w = stream.append
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        req = form._cw
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        _ = req._
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        __ = _
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        label = u'%s :' % __('This %s' % form.edited_entity.e_schema).capitalize()
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        eid = form.edited_entity.eid
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        w(u'<fieldset class="subentity">')
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        w(u'<legend class="iformTitle">%s</legend>' % label)
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        w(u'<table id="relatedEntities">')
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        for rschema, role, related in field.relations_table(form):
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            # already linked entities
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            if related:
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                w(u'<tr><th class="labelCol">%s</th>' % rschema.display_name(req, role))
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                w(u'<td>')
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                w(u'<ul>')
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                for viewparams in related:
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                    w(u'<li class="invisible">%s<div id="span%s" class="%s">%s</div></li>'
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                      % (viewparams[1], viewparams[0], viewparams[2], viewparams[3]))
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                if not form.force_display and form.maxrelitems < len(related):
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                    link = (u'<span class="invisible">'
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                            '[<a href="javascript: window.location.href+=\'&amp;__force_display=1\'">%s</a>]'
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                            '</span>' % self._cw._('view all'))
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                    w(u'<li class="invisible">%s</li>' % link)
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                w(u'</ul>')
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                w(u'</td>')
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                w(u'</tr>')
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        pendings = list(field.restore_pending_inserts(form))
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        if not pendings:
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            w(u'<tr><th>&#160;</th><td>&#160;</td></tr>')
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        else:
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            for row in pendings:
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                # soon to be linked to entities
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                w(u'<tr id="tr%s">' % row[1])
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                w(u'<th>%s</th>' % row[3])
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                w(u'<td>')
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                w(u'<a class="handle" title="%s" href="%s">[x]</a>' %
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                  (_('cancel this insert'), row[2]))
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                w(u'<a id="a%s" class="editionPending" href="%s">%s</a>'
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                  % (row[1], row[4], xml_escape(row[5])))
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                w(u'</td>')
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                w(u'</tr>')
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        w(u'<tr id="relationSelectorRow_%s" class="separator">' % eid)
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        w(u'<th class="labelCol">')
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        w(u'<select id="relationSelector_%s" tabindex="%s" '
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          'onchange="javascript:showMatchingSelect(this.options[this.selectedIndex].value,%s);">'
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          % (eid, req.next_tabindex(), xml_escape(dumps(eid))))
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        w(u'<option value="">%s</option>' % _('select a relation'))
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        for i18nrtype, rschema, role in field.relations:
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            # more entities to link to
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            w(u'<option value="%s_%s">%s</option>' % (rschema, role, i18nrtype))
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        w(u'</select>')
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        w(u'</th>')
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        w(u'<td id="unrelatedDivs_%s"></td>' % eid)
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        w(u'</tr>')
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        w(u'</table>')
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        w(u'</fieldset>')
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        return '\n'.join(stream)
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   203
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   204
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class GenericRelationsField(ff.Field):
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    widget = GenericRelationsWidget
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   207
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    def __init__(self, relations, name='_cw_generic_field', **kwargs):
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        assert relations
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        kwargs['eidparam'] = True
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        super(GenericRelationsField, self).__init__(name, **kwargs)
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        self.relations = relations
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        self.label = None
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   214
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    def process_posted(self, form):
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        todelete = get_pending_deletes(form._cw)
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        if todelete:
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            delete_relations(form._cw, todelete)
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        toinsert = get_pending_inserts(form._cw)
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        if toinsert:
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            insert_relations(form._cw, toinsert)
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        return ()
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   223
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    def relations_table(self, form):
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        """yiels 3-tuples (rtype, role, related_list)
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        where <related_list> itself a list of :
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          - node_id (will be the entity element's DOM id)
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          - appropriate javascript's togglePendingDelete() function call
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          - status 'pendingdelete' or ''
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          - oneline view of related entity
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        """
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        entity = form.edited_entity
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        pending_deletes = get_pending_deletes(form._cw, entity.eid)
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        for label, rschema, role in self.relations:
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            related = []
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            if entity.has_eid():
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                rset = entity.related(rschema, role, limit=form.related_limit)
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                if rschema.has_perm(form._cw, 'delete'):
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                    toggleable_rel_link_func = toggleable_relation_link
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                else:
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                    toggleable_rel_link_func = lambda x, y, z: u''
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                for row in xrange(rset.rowcount):
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                    nodeid = relation_id(entity.eid, rschema, role,
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                                         rset[row][0])
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                    if nodeid in pending_deletes:
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                        status, label = u'pendingDelete', '+'
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                    else:
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                        status, label = u'', 'x'
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                    dellink = toggleable_rel_link_func(entity.eid, nodeid, label)
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                    eview = form._cw.view('oneline', rset, row=row)
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                    related.append((nodeid, dellink, status, eview))
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            yield (rschema, role, related)
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   253
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    def restore_pending_inserts(self, form):
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        """used to restore edition page as it was before clicking on
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        'search for <some entity type>'
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        """
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        entity = form.edited_entity
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        pending_inserts = set(get_pending_inserts(form._cw, form.edited_entity.eid))
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        for pendingid in pending_inserts:
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            eidfrom, rtype, eidto = pendingid.split(':')
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            if typed_eid(eidfrom) == entity.eid: # subject
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                label = display_name(form._cw, rtype, 'subject',
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                                     entity.__regid__)
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                reid = eidto
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            else:
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                label = display_name(form._cw, rtype, 'object',
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                                     entity.__regid__)
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                reid = eidfrom
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            jscall = "javascript: cancelPendingInsert('%s', 'tr', null, %s);" \
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                     % (pendingid, entity.eid)
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            rset = form._cw.eid_rset(reid)
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            eview = form._cw.view('text', rset, row=0)
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            # XXX find a clean way to handle baskets
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            if rset.description[0][0] == 'Basket':
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                eview = '%s (%s)' % (eview, display_name(form._cw, 'Basket'))
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            yield rtype, pendingid, jscall, label, reid, eview
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   278
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class UnrelatedDivs(EntityView):
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    __regid__ = '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.cw_rset.get_entity(row, col)
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        relname, role = self._cw.form.get('relation').rsplit('_', 1)
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        rschema = self._cw.vreg.schema.rschema(relname)
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        hidden = 'hidden' in self._cw.form
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        is_cell = 'is_cell' in self._cw.form
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        self.w(self.build_unrelated_select_div(entity, rschema, role,
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                                               is_cell=is_cell, hidden=hidden))
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   292
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    def build_unrelated_select_div(self, entity, rschema, role,
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                                   is_cell=False, hidden=True):
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   295
        options = []
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   296
        divid = 'div%s_%s_%s' % (rschema.type, role, entity.eid)
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   297
        selectid = 'select%s_%s_%s' % (rschema.type, role, entity.eid)
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   298
        if rschema.symetric or role == 'subject':
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            targettypes = rschema.objects(entity.e_schema)
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            etypes = '/'.join(sorted(etype.display_name(self._cw) for etype in targettypes))
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   301
        else:
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            targettypes = rschema.subjects(entity.e_schema)
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            etypes = '/'.join(sorted(etype.display_name(self._cw) for etype in targettypes))
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        etypes = uilib.cut(etypes, self._cw.property_value('navigation.short-line-size'))
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   305
        options.append('<option>%s %s</option>' % (self._cw._('select a'), etypes))
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   306
        options += self._get_select_options(entity, rschema, role)
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   307
        options += self._get_search_options(entity, rschema, role, targettypes)
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   308
        if 'Basket' in self._cw.vreg.schema: # XXX
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   309
            options += self._get_basket_options(entity, rschema, role, targettypes)
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        relname, role = self._cw.form.get('relation').rsplit('_', 1)
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   311
        return u"""\
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   312
<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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   318
       xml_escape(dumps(entity.eid)), is_cell and 'true' or 'null', relname,
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   319
       '\n'.join(options))
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   320
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   321
    def _get_select_options(self, entity, rschema, role):
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        """add options to search among all entities of each possible type"""
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   323
        options = []
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   324
        pending_inserts = get_pending_inserts(self._cw, entity.eid)
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   325
        rtype = rschema.type
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diff changeset
   326
        form = self._cw.vreg['forms'].select('edition', self._cw, entity=entity)
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diff changeset
   327
        field = form.field_by_name(rschema, role, entity.e_schema)
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diff changeset
   328
        limit = self._cw.property_value('navigation.combobox-limit')
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diff changeset
   329
        for eview, reid in field.choices(form, limit): # XXX expect 'limit' arg on choices
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   330
            if reid is None:
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diff changeset
   331
                if eview: # skip blank value
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diff changeset
   332
                    options.append('<option class="separator">-- %s --</option>'
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parents: 4252
diff changeset
   333
                                   % xml_escape(eview))
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diff changeset
   334
            else:
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diff changeset
   335
                optionid = relation_id(entity.eid, rtype, role, reid)
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diff changeset
   336
                if optionid not in pending_inserts:
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diff changeset
   337
                    # prefix option's id with letters to make valid XHTML wise
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diff changeset
   338
                    options.append('<option id="id%s" value="%s">%s</option>' %
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parents: 2197
diff changeset
   339
                                   (optionid, reid, xml_escape(eview)))
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diff changeset
   340
        return options
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   341
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diff changeset
   342
    def _get_search_options(self, entity, rschema, role, targettypes):
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   343
        """add options to search among all entities of each possible type"""
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   344
        options = []
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diff changeset
   345
        _ = self._cw._
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diff changeset
   346
        for eschema in targettypes:
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diff changeset
   347
            mode = '%s:%s:%s:%s' % (role, entity.eid, rschema.type, eschema)
3460
e4843535db25 [api] some more _cw / __regid__, automatic tests now pass again
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3451
diff changeset
   348
            url = self._cw.build_url(entity.rest_path(), vid='search-associate',
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diff changeset
   349
                                 __mode=mode)
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diff changeset
   350
            options.append((eschema.display_name(self._cw),
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   351
                            '<option value="%s">%s %s</option>' % (
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diff changeset
   352
                xml_escape(url), _('Search for'), eschema.display_name(self._cw))))
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diff changeset
   353
        return [o for l, o in sorted(options)]
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diff changeset
   354
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diff changeset
   355
    def _get_basket_options(self, entity, rschema, role, targettypes):
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   356
        options = []
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diff changeset
   357
        rtype = rschema.type
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diff changeset
   358
        _ = self._cw._
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diff changeset
   359
        for basketeid, basketname in self._get_basket_links(self._cw.user.eid,
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parents: 4277
diff changeset
   360
                                                            role, targettypes):
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diff changeset
   361
            optionid = relation_id(entity.eid, rtype, role, basketeid)
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parents:
diff changeset
   362
            options.append('<option id="%s" value="%s">%s %s</option>' % (
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Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2197
diff changeset
   363
                optionid, basketeid, _('link to each item in'), xml_escape(basketname)))
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parents:
diff changeset
   364
        return options
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diff changeset
   365
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diff changeset
   366
    def _get_basket_links(self, ueid, role, targettypes):
824
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parents:
diff changeset
   367
        targettypes = set(targettypes)
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parents:
diff changeset
   368
        for basketeid, basketname, elements in self._get_basket_info(ueid):
a5e6acffde30 merge, split baseviews (new csvexport, xmlrss and editviews modules)
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parents:
diff changeset
   369
            baskettypes = elements.column_types(0)
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parents:
diff changeset
   370
            # if every elements in the basket can be attached to the
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parents:
diff changeset
   371
            # edited entity
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diff changeset
   372
            if baskettypes & targettypes:
a5e6acffde30 merge, split baseviews (new csvexport, xmlrss and editviews modules)
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parents:
diff changeset
   373
                yield basketeid, basketname
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1668989a8f0e AEF.field_by_name now take an entity schema, not an entity class
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parents: 1335
diff changeset
   374
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diff changeset
   375
    def _get_basket_info(self, ueid):
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parents:
diff changeset
   376
        basketref = []
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sylvain.thenault@logilab.fr
parents:
diff changeset
   377
        basketrql = 'Any B,N WHERE B is Basket, B owned_by U, U eid %(x)s, B name N'
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6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3377
diff changeset
   378
        basketresultset = self._cw.execute(basketrql, {'x': ueid}, 'x')
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parents:
diff changeset
   379
        for result in basketresultset:
a5e6acffde30 merge, split baseviews (new csvexport, xmlrss and editviews modules)
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parents:
diff changeset
   380
            basketitemsrql = 'Any X WHERE X in_basket B, B eid %(x)s'
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diff changeset
   381
            rset = self._cw.execute(basketitemsrql, {'x': result[0]}, 'x')
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parents:
diff changeset
   382
            basketref.append((result[0], result[1], rset))
a5e6acffde30 merge, split baseviews (new csvexport, xmlrss and editviews modules)
sylvain.thenault@logilab.fr
parents:
diff changeset
   383
        return basketref
a5e6acffde30 merge, split baseviews (new csvexport, xmlrss and editviews modules)
sylvain.thenault@logilab.fr
parents:
diff changeset
   384
a5e6acffde30 merge, split baseviews (new csvexport, xmlrss and editviews modules)
sylvain.thenault@logilab.fr
parents:
diff changeset
   385
a5e6acffde30 merge, split baseviews (new csvexport, xmlrss and editviews modules)
sylvain.thenault@logilab.fr
parents:
diff changeset
   386
class ComboboxView(EntityView):
a5e6acffde30 merge, split baseviews (new csvexport, xmlrss and editviews modules)
sylvain.thenault@logilab.fr
parents:
diff changeset
   387
    """the view used in combobox (unrelated entities)
a5e6acffde30 merge, split baseviews (new csvexport, xmlrss and editviews modules)
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parents:
diff changeset
   388
a5e6acffde30 merge, split baseviews (new csvexport, xmlrss and editviews modules)
sylvain.thenault@logilab.fr
parents:
diff changeset
   389
    THIS IS A TEXT VIEW. DO NOT HTML_ESCAPE
a5e6acffde30 merge, split baseviews (new csvexport, xmlrss and editviews modules)
sylvain.thenault@logilab.fr
parents:
diff changeset
   390
    """
3377
dd9d292b6a6d use __regid__ instead of id on appobject classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3293
diff changeset
   391
    __regid__ = 'combobox'
824
a5e6acffde30 merge, split baseviews (new csvexport, xmlrss and editviews modules)
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parents:
diff changeset
   392
    title = None
1454
1668989a8f0e AEF.field_by_name now take an entity schema, not an entity class
sylvain.thenault@logilab.fr
parents: 1335
diff changeset
   393
824
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sylvain.thenault@logilab.fr
parents:
diff changeset
   394
    def cell_call(self, row, col):
a5e6acffde30 merge, split baseviews (new csvexport, xmlrss and editviews modules)
sylvain.thenault@logilab.fr
parents:
diff changeset
   395
        """the combo-box view for an entity: same as text out of context view
a5e6acffde30 merge, split baseviews (new csvexport, xmlrss and editviews modules)
sylvain.thenault@logilab.fr
parents:
diff changeset
   396
        by default
a5e6acffde30 merge, split baseviews (new csvexport, xmlrss and editviews modules)
sylvain.thenault@logilab.fr
parents:
diff changeset
   397
        """
3451
6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3377
diff changeset
   398
        self.wview('textoutofcontext', self.cw_rset, row=row, col=col)
1454
1668989a8f0e AEF.field_by_name now take an entity schema, not an entity class
sylvain.thenault@logilab.fr
parents: 1335
diff changeset
   399
824
a5e6acffde30 merge, split baseviews (new csvexport, xmlrss and editviews modules)
sylvain.thenault@logilab.fr
parents:
diff changeset
   400
4277
35cd057339b2 turn all the stuff used to handle 'generic relations' in forms into proper
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4252
diff changeset
   401
class EditableFinalView(baseviews.FinalView):
824
a5e6acffde30 merge, split baseviews (new csvexport, xmlrss and editviews modules)
sylvain.thenault@logilab.fr
parents:
diff changeset
   402
    """same as FinalView but enables inplace-edition when possible"""
3377
dd9d292b6a6d use __regid__ instead of id on appobject classes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3293
diff changeset
   403
    __regid__ = 'editable-final'
1454
1668989a8f0e AEF.field_by_name now take an entity schema, not an entity class
sylvain.thenault@logilab.fr
parents: 1335
diff changeset
   404
3165
0a50ebe53db7 [views] remove parameter displaytime from final view
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 2996
diff changeset
   405
    def cell_call(self, row, col, props=None):
3451
6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3377
diff changeset
   406
        entity, rtype = self.cw_rset.related_entity(row, col)
824
a5e6acffde30 merge, split baseviews (new csvexport, xmlrss and editviews modules)
sylvain.thenault@logilab.fr
parents:
diff changeset
   407
        if entity is not None:
a5e6acffde30 merge, split baseviews (new csvexport, xmlrss and editviews modules)
sylvain.thenault@logilab.fr
parents:
diff changeset
   408
            self.w(entity.view('reledit', rtype=rtype))
a5e6acffde30 merge, split baseviews (new csvexport, xmlrss and editviews modules)
sylvain.thenault@logilab.fr
parents:
diff changeset
   409
        else:
3165
0a50ebe53db7 [views] remove parameter displaytime from final view
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 2996
diff changeset
   410
            super(EditableFinalView, self).cell_call(row, col, props)