web/views/primary.py
author Aurelien Campeas <aurelien.campeas@logilab.fr>
Thu, 16 Jul 2009 13:30:13 +0200
changeset 2381 caad2367d940
parent 2293 7ded2a1416e4
parent 2361 8f00836580f1
child 2384 6220783caa4b
permissions -rw-r--r--
backport stable branch
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"""The default primary view
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:organization: Logilab
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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
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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 warnings import warn
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from logilab.mtconverter import xml_escape
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from cubicweb import Unauthorized
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from cubicweb.view import EntityView
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from cubicweb.schema import display_name
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from cubicweb.web import uicfg
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class PrimaryView(EntityView):
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    """the full view of an non final entity"""
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    id = 'primary'
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    title = _('primary')
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    show_attr_label = True
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    show_rel_label = True
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    skip_none = True
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    rsection = uicfg.primaryview_section
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    display_ctrl = uicfg.primaryview_display_ctrl
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    main_related_section = True
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    def html_headers(self):
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        """return a list of html headers (eg something to be inserted between
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        <head> and </head> of the returned page
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        by default primary views are indexed
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        """
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        return []
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    def cell_call(self, row, col):
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        self.row = row
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        # XXX move render_entity implementation here
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        self.render_entity(self.complete_entity(row, col))
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        self.maxrelated = self.req.property_value('navigation.related-limit')
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    def render_entity(self, entity):
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        """return html to display the given entity"""
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        self.render_entity_title(entity)
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        self.render_entity_metadata(entity)
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        # entity's attributes and relations, excluding meta data
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        # if the entity isn't meta itself
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        boxes = self._prepare_side_boxes(entity)
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        if boxes or hasattr(self, 'render_side_related'):
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            self.w(u'<table width="100%"><tr><td style="width: 75%">')
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        self.w(u'<div class="mainInfo">')
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        self.content_navigation_components('navcontenttop')
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        try:
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            self.render_entity_attributes(entity)
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        except TypeError, e: # XXX bw compat
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            if 'render_entity' not in e.args[0]:
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                raise
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            warn('siderelations argument of render_entity_attributes is '
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                 'deprecated (%s)' % self.__class__)
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            self.render_entity_attributes(entity, [])
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        if self.main_related_section:
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            try:
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                self.render_entity_relations(entity)
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            except TypeError, e: # XXX bw compat
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                if 'render_entity' not in e.args[0]:
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                    raise
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                warn('siderelations argument of render_entity_relations is '
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                     'deprecated')
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                self.render_entity_relations(entity, [])
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        self.w(u'</div>')
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        # side boxes
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        if boxes or hasattr(self, 'render_side_related'):
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            self.w(u'</td><td>')
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            self.w(u'<div class="primaryRight">')
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            if hasattr(self, 'render_side_related'):
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                warn('render_side_related is deprecated')
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                self.render_side_related(entity, [])
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            self.render_side_boxes(boxes)
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            self.w(u'</div>')
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            self.w(u'</td></tr></table>')
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        self.content_navigation_components('navcontentbottom')
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    def content_navigation_components(self, context):
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        self.w(u'<div class="%s">' % context)
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        for comp in self.vreg.possible_vobjects('contentnavigation', self.req,
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                                                rset=self.rset, row=self.row,
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                                                view=self, context=context):
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            try:
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                comp.render(w=self.w, row=self.row, view=self)
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            except NotImplementedError:
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                warn('component %s doesnt implement cell_call, please update'
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                     % comp.__class__, DeprecationWarning)
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                comp.render(w=self.w, view=self)
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        self.w(u'</div>')
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    def render_entity_title(self, entity):
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        """default implementation return dc_title"""
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        title = xml_escape(entity.dc_title())
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        if title:
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            self.w(u'<h1><span class="etype">%s</span> %s</h1>'
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                   % (entity.dc_type().capitalize(), title))
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    def render_entity_metadata(self, entity):
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        entity.view('metadata', w=self.w)
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        summary = self.summary(entity) # deprecate summary?
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        if summary:
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            self.w(u'<div class="summary">%s</div>' % summary)
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    def summary(self, entity):
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        """default implementation return an empty string"""
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        return u''
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    def render_entity_attributes(self, entity, siderelations=None):
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        for rschema, tschemas, role, dispctrl in self._section_def(entity, 'attributes'):
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            vid = dispctrl.get('vid', 'reledit')
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            if rschema.is_final() or vid == 'reledit':
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                value = entity.view(vid, rtype=rschema.type, role=role)
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            else:
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                rset = self._relation_rset(entity, rschema, role, dispctrl)
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                if rset:
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                    value = self.view(vid, rset)
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                else:
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                    value = None
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            if self.skip_none and (value is None or value == ''):
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                continue
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            self._render_attribute(rschema, value)
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    def render_entity_relations(self, entity, siderelations=None):
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        for rschema, tschemas, role, dispctrl in self._section_def(entity, 'relations'):
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            rset = self._relation_rset(entity, rschema, role, dispctrl)
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            if rset:
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                self._render_relation(rset, dispctrl, 'autolimited',
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                                      self.show_rel_label)
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    def render_side_boxes(self, boxes):
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        """display side related relations:
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        non-meta in a first step, meta in a second step
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        """
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        for box in boxes:
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            if isinstance(box, tuple):
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                label, rset, vid  = box
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                self.w(u'<div class="sideBox">')
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                self.wview(vid, rset, title=label)
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                self.w(u'</div>')
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            else:
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                try:
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                    box.render(w=self.w, row=self.row)
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                except NotImplementedError:
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                    # much probably a context insensitive box, which only implements
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                    # .call() and not cell_call()
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                    box.render(w=self.w)
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    def _prepare_side_boxes(self, entity):
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        sideboxes = []
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        for rschema, tschemas, role, dispctrl in self._section_def(entity, 'sideboxes'):
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            rset = self._relation_rset(entity, rschema, role, dispctrl)
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            if not rset:
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                continue
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            label = display_name(self.req, rschema.type, role)
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            vid = dispctrl.get('vid', 'sidebox')
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            sideboxes.append( (label, rset, vid) )
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        sideboxes += self.vreg.possible_vobjects('boxes', self.req, rset=self.rset,
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                                                 row=self.row, view=self,
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                                                 context='incontext')
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        return sideboxes
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    def _section_def(self, entity, where):
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        rdefs = []
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        eschema = entity.e_schema
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        for rschema, tschemas, role in eschema.relation_definitions(True):
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            matchtschemas = []
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            for tschema in tschemas:
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                section = self.rsection.etype_get(eschema, rschema, role,
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                                                  tschema)
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                if section == where:
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                    matchtschemas.append(tschema)
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            if matchtschemas:
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                # XXX pick the latest dispctrl
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                dispctrl = self.display_ctrl.etype_get(eschema, rschema, role,
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                                                       matchtschemas[-1])
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   186
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                rdefs.append( (rschema, matchtschemas, role, dispctrl) )
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        return sorted(rdefs, key=lambda x: x[-1]['order'])
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   189
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    def _relation_rset(self, entity, rschema, role, dispctrl):
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        try:
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            if dispctrl.get('limit'):
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                rset = entity.related(rschema.type, role,
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                                      limit=self.maxrelated+1)
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   195
            else:
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                rset = entity.related(rschema.type, role)
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   197
        except Unauthorized:
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   198
            return
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        if 'filter' in dispctrl:
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            rset = dispctrl['filter'](rset)
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        return rset
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   202
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   203
    def _render_relation(self, rset, dispctrl, defaultvid, showlabel):
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        self.w(u'<div class="section">')
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        if showlabel:
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   206
            self.w(u'<h4>%s</h4>' % self.req._(dispctrl['label']))
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        self.wview(dispctrl.get('vid', defaultvid), rset)
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        self.w(u'</div>')
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    def _render_attribute(self, rschema, value, role='subject'):
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        if rschema.is_final():
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            show_label = self.show_attr_label
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   213
        else:
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            show_label = self.show_rel_label
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        label = display_name(self.req, rschema.type, role)
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   216
        self.field(label, value, show_label=show_label, tr=False)
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   217
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   219
class RelatedView(EntityView):
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   220
    id = 'autolimited'
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    def call(self, title=None, **kwargs):
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   222
        # if not too many entities, show them all in a list
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        maxrelated = self.req.property_value('navigation.related-limit')
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   224
        if title:
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            self.w(u'<div class="title"><span>%s</span></div>' % title)
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        if self.rset.rowcount <= maxrelated:
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   227
            if self.rset.rowcount == 1:
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   228
                self.wview('incontext', self.rset, row=0)
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   229
            elif 1 < self.rset.rowcount <= 5:
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   230
                self.wview('csv', self.rset)
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   231
            else:
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   232
                self.w(u'<div>')
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   233
                self.wview('simplelist', self.rset)
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   234
                self.w(u'</div>')
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   235
        # else show links to display related entities
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   236
        else:
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   237
            rql = self.rset.printable_rql()
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   238
            self.rset.limit(maxrelated)
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   239
            self.w(u'<div>')
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   240
            self.wview('simplelist', self.rset)
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   241
            self.w(u'[<a href="%s">%s</a>]' % (self.build_url(rql=rql),
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   242
                                               self.req._('see them all')))
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   243
            self.w(u'</div>')