web/box.py
author Nicolas Chauvat <nicolas.chauvat@logilab.fr>
Fri, 16 Jul 2010 11:00:42 +0200
changeset 5979 561b6c2eb288
parent 5952 adb87a075281
child 6017 5f6a60ea8544
permissions -rw-r--r--
[web] eid key is deprecated
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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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"""abstract box classes for CubicWeb web client"""
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__docformat__ = "restructuredtext en"
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_ = unicode
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from logilab.mtconverter import xml_escape
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from cubicweb import Unauthorized, role as get_role, target as get_target
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from cubicweb.schema import display_name
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from cubicweb.selectors import (no_cnx, one_line_rset,  primary_view,
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                                match_context_prop, partial_relation_possible,
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                                partial_has_related_entities)
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from cubicweb.view import View, ReloadableMixIn
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from cubicweb.uilib import domid, js
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from cubicweb.web import INTERNAL_FIELD_VALUE, stdmsgs
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from cubicweb.web.htmlwidgets import (BoxLink, BoxWidget, SideBoxWidget,
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                                      RawBoxItem, BoxSeparator)
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from cubicweb.web.action import UnregisteredAction
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class BoxTemplate(View):
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    """base template for boxes, usually a (contextual) list of possible
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    actions. Various classes attributes may be used to control the box
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    rendering.
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    You may override on of the formatting callbacks is this is not necessary
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    for your custom box.
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    Classes inheriting from this class usually only have to override call
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    to fetch desired actions, and then to do something like  ::
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        box.render(self.w)
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    """
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    __registry__ = 'boxes'
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    __select__ = ~no_cnx() & match_context_prop()
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    categories_in_order = ()
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    cw_property_defs = {
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        _('visible'): dict(type='Boolean', default=True,
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                           help=_('display the box or not')),
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        _('order'):   dict(type='Int', default=99,
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                           help=_('display order of the box')),
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        # XXX 'incontext' boxes are handled by the default primary view
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        _('context'): dict(type='String', default='left',
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                           vocabulary=(_('left'), _('incontext'), _('right')),
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                           help=_('context where this box should be displayed')),
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        }
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    context = 'left'
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    htmlitemclass = 'boxItem'
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    def sort_actions(self, actions):
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        """return a list of (category, actions_sorted_by_title)"""
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        result = []
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        actions_by_cat = {}
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        for action in actions:
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            actions_by_cat.setdefault(action.category, []).append(
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                (action.title, action) )
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        for key, values in actions_by_cat.items():
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            actions_by_cat[key] = [act for title, act in sorted(values)]
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        for cat in self.categories_in_order:
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            if cat in actions_by_cat:
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                result.append( (cat, actions_by_cat[cat]) )
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        for item in sorted(actions_by_cat.items()):
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            result.append(item)
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        return result
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    def mk_action(self, title, path, escape=True, **kwargs):
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        """factory function to create dummy actions compatible with the
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        .format_actions method
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        """
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        if escape:
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            title = xml_escape(title)
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        return self.box_action(self._action(title, path, **kwargs))
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    def _action(self, title, path, **kwargs):
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        return UnregisteredAction(self._cw, self.cw_rset, title, path, **kwargs)
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    # formating callbacks
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    def boxitem_link_tooltip(self, action):
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        if action.__regid__:
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            return u'keyword: %s' % action.__regid__
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        return u''
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    def box_action(self, action):
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        cls = getattr(action, 'html_class', lambda: None)() or self.htmlitemclass
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        return BoxLink(action.url(), self._cw._(action.title),
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                       cls, self.boxitem_link_tooltip(action))
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class RQLBoxTemplate(BoxTemplate):
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    """abstract box for boxes displaying the content of a rql query not
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    related to the current result set.
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    It rely on etype, rtype (both optional, usable to control registration
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    according to application schema and display according to connected
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    user's rights) and rql attributes
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    """
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    rql  = None
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    def to_display_rql(self):
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        assert self.rql is not None, self.__regid__
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        return (self.rql,)
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0
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    def call(self, **kwargs):
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        try:
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            rset = self._cw.execute(*self.to_display_rql())
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        except Unauthorized:
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            # can't access to something in the query, forget this box
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            return
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        if len(rset) == 0:
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            return
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        box = BoxWidget(self._cw._(self.title), self.__regid__)
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        for i, (teid, tname) in enumerate(rset):
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            entity = rset.get_entity(i, 0)
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            box.append(self.mk_action(tname, entity.absolute_url()))
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        box.render(w=self.w)
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0
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class UserRQLBoxTemplate(RQLBoxTemplate):
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    """same as rql box template but the rql is build using the eid of the
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    request's user
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    """
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    def to_display_rql(self):
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        assert self.rql is not None, self.__regid__
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        return (self.rql, {'x': self._cw.user.eid})
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0
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class EntityBoxTemplate(BoxTemplate):
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    """base class for boxes related to a single entity"""
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    __select__ = BoxTemplate.__select__ & one_line_rset() & primary_view()
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    context = 'incontext'
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0
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    def call(self, row=0, col=0, **kwargs):
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        """classes inheriting from EntityBoxTemplate should define cell_call"""
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        self.cell_call(row, col, **kwargs)
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class RelatedEntityBoxTemplate(EntityBoxTemplate):
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    __select__ = EntityBoxTemplate.__select__ & partial_has_related_entities()
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    def cell_call(self, row, col, **kwargs):
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        entity = self.cw_rset.get_entity(row, col)
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        limit = self._cw.property_value('navigation.related-limit') + 1
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        role = get_role(self)
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        self.w(u'<div class="sideBox">')
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        self.wview('sidebox', entity.related(self.rtype, role, limit=limit),
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                   title=display_name(self._cw, self.rtype, role))
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        self.w(u'</div>')
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class EditRelationBoxTemplate(ReloadableMixIn, EntityBoxTemplate):
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    """base class for boxes which let add or remove 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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    def cell_call(self, row, col, view=None, **kwargs):
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        self._cw.add_js('cubicweb.ajax.js')
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        entity = self.cw_rset.get_entity(row, col)
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        box = SideBoxWidget(display_name(self._cw, self.rtype), self.__regid__)
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        related = self.related_boxitems(entity)
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        unrelated = self.unrelated_boxitems(entity)
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        box.extend(related)
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        if related and unrelated:
0
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            box.append(BoxSeparator())
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        box.extend(unrelated)
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        box.render(self.w)
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    def div_id(self):
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        return self.__regid__
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0
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    def box_item(self, entity, etarget, rql, label):
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        """builds HTML link to edit relation between `entity` and `etarget`
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        """
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        role, target = get_role(self), get_target(self)
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        args = {role[0] : entity.eid, target[0] : etarget.eid}
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        url = self._cw.user_rql_callback((rql, args))
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        # for each target, provide a link to edit the relation
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        label = u'[<a href="%s">%s</a>] %s' % (xml_escape(url), label,
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                                               etarget.view('incontext'))
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        return RawBoxItem(label, liclass=u'invisible')
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    def related_boxitems(self, entity):
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        rql = 'DELETE S %s O WHERE S eid %%(s)s, O eid %%(o)s' % self.rtype
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        related = []
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        for etarget in self.related_entities(entity):
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            related.append(self.box_item(entity, etarget, rql, u'-'))
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        return related
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    def unrelated_boxitems(self, entity):
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        rql = 'SET S %s O WHERE S eid %%(s)s, O eid %%(o)s' % self.rtype
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        unrelated = []
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        for etarget in self.unrelated_entities(entity):
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            unrelated.append(self.box_item(entity, etarget, rql, u'+'))
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        return unrelated
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    def related_entities(self, entity):
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        return entity.related(self.rtype, get_role(self), entities=True)
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    def unrelated_entities(self, entity):
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        """returns the list of unrelated entities, using the entity's
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        appropriate vocabulary function
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        """
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        skip = set(unicode(e.eid) for e in entity.related(self.rtype, get_role(self),
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                                                          entities=True))
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        skip.add(None)
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        skip.add(INTERNAL_FIELD_VALUE)
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        filteretype = getattr(self, 'etype', None)
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        entities = []
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        form = self._cw.vreg['forms'].select('edition', self._cw,
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                                             rset=self.cw_rset,
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                                             row=self.cw_row or 0)
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        field = form.field_by_name(self.rtype, get_role(self), entity.e_schema)
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        for _, eid in field.vocabulary(form):
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            if eid not in skip:
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                entity = self._cw.entity_from_eid(eid)
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                if filteretype is None or entity.__regid__ == filteretype:
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                    entities.append(entity)
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        return entities
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class AjaxEditRelationBoxTemplate(EntityBoxTemplate):
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    __select__ = EntityBoxTemplate.__select__ & partial_relation_possible()
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    # view used to display related entties
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    item_vid = 'incontext'
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    # values separator when multiple values are allowed
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    separator = ','
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    # msgid of the message to display when some new relation has been added/removed
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    added_msg = None
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    removed_msg = None
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    # class attributes below *must* be set in concret classes (additionaly to
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    # rtype / role [/ target_etype]. They should correspond to js_* methods on
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    # the json controller
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    # function(eid)
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    # -> expected to return a list of values to display as input selector
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    #    vocabulary
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    fname_vocabulary = None
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    # function(eid, value)
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    # -> handle the selector's input (eg create necessary entities and/or
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    # relations). If the relation is multiple, you'll get a list of value, else
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    # a single string value.
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    fname_validate = None
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    # function(eid, linked entity eid)
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    # -> remove the relation
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    fname_remove = None
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    def cell_call(self, row, col, **kwargs):
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        req = self._cw
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        entity = self.cw_rset.get_entity(row, col)
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        related = entity.related(self.rtype, self.role)
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        rdef = entity.e_schema.rdef(self.rtype, self.role, self.target_etype)
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        if self.role == 'subject':
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            mayadd = rdef.has_perm(req, 'add', fromeid=entity.eid)
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            maydel = rdef.has_perm(req, 'delete', fromeid=entity.eid)
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        else:
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            mayadd = rdef.has_perm(req, 'add', toeid=entity.eid)
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            maydel = rdef.has_perm(req, 'delete', toeid=entity.eid)
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        if not (related or mayadd):
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            return
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        if mayadd or maydel:
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            req.add_js(('cubicweb.ajax.js', 'cubicweb.ajax.box.js'))
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        _ = req._
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        w = self.w
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        divid = domid(self.__regid__) + unicode(entity.eid)
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        w(u'<div class="sideBox" id="%s%s">' % (domid(self.__regid__), entity.eid))
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        w(u'<div class="sideBoxTitle"><span>%s</span></div>' %
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               rdef.rtype.display_name(req, self.role))
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        w(u'<div class="sideBox"><div class="sideBoxBody">')
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   297
        if related:
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   298
            w(u'<table>')
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   299
            for rentity in related.entities():
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                # for each related entity, provide a link to remove the relation
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   301
                subview = rentity.view(self.item_vid)
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   302
                if maydel:
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   303
                    jscall = unicode(js.ajaxBoxRemoveLinkedEntity(
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   304
                        self.__regid__, entity.eid, rentity.eid,
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                        self.fname_remove,
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                        self.removed_msg and _(self.removed_msg)))
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   307
                    w(u'<tr><td>[<a href="javascript: %s">-</a>]</td>'
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                      '<td class="tagged">%s</td></tr>' % (xml_escape(jscall),
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   309
                                                           subview))
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   310
                else:
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   311
                    w(u'<tr><td class="tagged">%s</td></tr>' % (subview))
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            w(u'</table>')
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   313
        else:
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   314
            w(_('no related entity'))
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   315
        if mayadd:
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   316
            req.add_js('jquery.autocomplete.js')
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            req.add_css('jquery.autocomplete.css')
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   318
            multiple = rdef.role_cardinality(self.role) in '*+'
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   319
            w(u'<table><tr><td>')
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   320
            jscall = unicode(js.ajaxBoxShowSelector(
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   321
                self.__regid__, entity.eid, self.fname_vocabulary,
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                self.fname_validate, self.added_msg and _(self.added_msg),
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                _(stdmsgs.BUTTON_OK[0]), _(stdmsgs.BUTTON_CANCEL[0]),
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                multiple and self.separator))
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   325
            w('<a class="button sglink" href="javascript: %s">%s</a>' % (
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   326
                xml_escape(jscall),
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   327
                multiple and _('add_relation') or _('update_relation')))
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   328
            w(u'</td><td>')
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   329
            w(u'<div id="%sHolder"></div>' % divid)
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Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5927
diff changeset
   330
            w(u'</td></tr></table>')
2a273c896a38 [box] provide a new generic base box class to edit relation to simple entities, backported from the 'tag' cube
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5927
diff changeset
   331
        w(u'</div>\n')
2a273c896a38 [box] provide a new generic base box class to edit relation to simple entities, backported from the 'tag' cube
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5927
diff changeset
   332
        w(u'</div></div>\n')