web/views/primary.py
branchtls-sprint
changeset 1491 742aff97dbf7
child 1516 288d55a7c5e2
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/views/primary.py	Tue Apr 28 10:10:04 2009 +0200
@@ -0,0 +1,226 @@
+"""The default primary view
+
+:organization: Logilab
+:copyright: 2001-2009 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
+:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
+"""
+
+from warnings import warn
+
+from cubicweb import Unauthorized
+from cubicweb.view import EntityView
+
+_ = unicode
+
+PRIMARY_SKIP_RELS = set(['is', 'is_instance_of', 'identity',
+                         'owned_by', 'created_by',
+                         'in_state', 'wf_info_for', 'require_permission',
+                         'from_entity', 'to_entity',
+                         'see_also'])
+
+class PrimaryView(EntityView):
+    """the full view of an non final entity"""
+    id = 'primary'
+    title = _('primary')
+    show_attr_label = True
+    show_rel_label = True
+    skip_none = True
+    skip_attrs = ('eid', 'creation_date', 'modification_date')
+    skip_rels = ()
+    main_related_section = True
+
+    def html_headers(self):
+        """return a list of html headers (eg something to be inserted between
+        <head> and </head> of the returned page
+
+        by default primary views are indexed
+        """
+        return []
+
+    def cell_call(self, row, col):
+        self.row = row
+        # XXX move render_entity implementation here
+        self.render_entity(self.complete_entity(row, col))
+
+    def render_entity(self, entity):
+        """return html to display the given entity"""
+        siderelations = []
+        self.render_entity_title(entity)
+        self.render_entity_metadata(entity)
+        # entity's attributes and relations, excluding meta data
+        # if the entity isn't meta itself
+        boxes = self._preinit_side_related(entity, siderelations)
+        if boxes:
+            self.w(u'<table width="100%"><tr><td width="75%">')
+        self.w(u'<div>')
+        self.w(u'<div class="mainInfo">')
+        self.render_entity_attributes(entity, siderelations)
+        self.w(u'</div>')
+        self.content_navigation_components('navcontenttop')
+        if self.main_related_section:
+            self.render_entity_relations(entity, siderelations)
+        self.w(u'</div>')
+        if boxes:
+            self.w(u'</td><td>')
+            # side boxes
+            self.w(u'<div class="primaryRight">')
+            self.render_side_related(entity, siderelations)
+            self.w(u'</div>')
+            self.w(u'</td></tr></table>')
+        self.content_navigation_components('navcontentbottom')
+
+
+    def content_navigation_components(self, context):
+        self.w(u'<div class="%s">' % context)
+        for comp in self.vreg.possible_vobjects('contentnavigation',
+                                                self.req, self.rset, row=self.row,
+                                                view=self, context=context):
+            try:
+                comp.dispatch(w=self.w, row=self.row, view=self)
+            except NotImplementedError:
+                warn('component %s doesnt implement cell_call, please update'
+                     % comp.__class__, DeprecationWarning)
+                comp.dispatch(w=self.w, view=self)
+        self.w(u'</div>')
+
+    def iter_attributes(self, entity):
+        for rschema, targetschema in entity.e_schema.attribute_definitions():
+            if rschema.type in self.skip_attrs:
+                continue
+            yield rschema, targetschema
+
+    def iter_relations(self, entity):
+        skip = set(self.skip_rels)
+        skip.update(PRIMARY_SKIP_RELS)
+        for rschema, targetschemas, x in entity.e_schema.relation_definitions():
+            if rschema.type in skip:
+                continue
+            yield rschema, targetschemas, x
+
+    def render_entity_title(self, entity):
+        title = self.content_title(entity) # deprecate content_title?
+        if title:
+            self.w(u'<h1><span class="etype">%s</span> %s</h1>'
+                   % (entity.dc_type().capitalize(), title))
+
+    def content_title(self, entity):
+        """default implementation return an empty string"""
+        return u''
+
+    def render_entity_metadata(self, entity):
+        entity.view('metadata', w=self.w)
+        summary = self.summary(entity) # deprecate summary?
+        if summary:
+            self.w(u'<div class="summary">%s</div>' % summary)
+
+    def summary(self, entity):
+        """default implementation return an empty string"""
+        return u''
+
+    def render_entity_attributes(self, entity, siderelations):
+        for rschema, targetschema in self.iter_attributes(entity):
+            attr = rschema.type
+            if targetschema.type in ('Password', 'Bytes'):
+                continue
+            try:
+                wdg = entity.get_widget(attr)
+            except Exception, ex:
+                value = entity.printable_value(attr, entity[attr], targetschema.type)
+            else:
+                value = wdg.render(entity)
+            if self.skip_none and (value is None or value == ''):
+                continue
+            if rschema.meta:
+                continue
+            self._render_related_entities(entity, rschema, value)
+
+    def _preinit_side_related(self, entity, siderelations):
+        self._sideboxes = None
+        self._related_entities = []
+        if hasattr(self, 'get_side_boxes_defs'):
+            self._sideboxes = [(label, rset) for label, rset in self.get_side_boxes_defs(entity)
+                               if rset]
+        else:
+            eschema = entity.e_schema
+            maxrelated = self.req.property_value('navigation.related-limit')
+            for rschema, targetschemas, x in self.iter_relations(entity):
+                try:
+                    related = entity.related(rschema.type, x, limit=maxrelated+1)
+                except Unauthorized:
+                    continue
+                if not related:
+                    continue
+                if self.is_side_related(rschema, eschema):
+                    siderelations.append((rschema, related, x))
+                    continue
+                self._related_entities.append((rschema, related, x))
+        self._boxes_in_context = list(self.vreg.possible_vobjects('boxes', self.req, self.rset,
+                                                 row=self.row, view=self,
+                                                 context='incontext'))
+        return self._sideboxes or self._boxes_in_context or self._related_entities or siderelations
+
+    def render_entity_relations(self, entity, siderelations):
+        if self._related_entities:
+            for rschema, related, x in self._related_entities:
+                self._render_related_entities(entity, rschema, related, x)
+
+
+    def render_side_related(self, entity, siderelations):
+        """display side related relations:
+        non-meta in a first step, meta in a second step
+        """
+        if self._sideboxes:
+            for label, rset in self._sideboxes:
+                self.w(u'<div class="sideRelated">')
+                self.wview('sidebox', rset, title=label)
+                self.w(u'</div>')
+        elif siderelations:
+            self.w(u'<div class="sideRelated">')
+            for relatedinfos in siderelations:
+                # if not relatedinfos[0].meta:
+                #    continue
+                self._render_related_entities(entity, *relatedinfos)
+            self.w(u'</div>')
+
+        if self._boxes_in_context:
+            for box in self._boxes_in_context:
+                try:
+                    box.dispatch(w=self.w, row=self.row)
+                except NotImplementedError:
+                    # much probably a context insensitive box, which only implements
+                    # .call() and not cell_call()
+                    box.dispatch(w=self.w)
+
+    def is_side_related(self, rschema, eschema):
+        return rschema.meta and \
+               not rschema.schema_relation() == eschema.schema_entity()
+
+    def _render_related_entities(self, entity, rschema, related,
+                                 role='subject'):
+        if rschema.is_final():
+            value = related
+            show_label = self.show_attr_label
+        else:
+            if not related:
+                return
+            show_label = self.show_rel_label
+            # if not too many entities, show them all in a list
+            maxrelated = self.req.property_value('navigation.related-limit')
+            if related.rowcount <= maxrelated:
+                if related.rowcount == 1:
+                    value = self.view('incontext', related, row=0)
+                elif 1 < related.rowcount <= 5:
+                    value = self.view('csv', related)
+                else:
+                    value = '<div>' + self.view('simplelist', related) + '</div>'
+            # else show links to display related entities
+            else:
+                rql = related.printable_rql()
+                related.limit(maxrelated)
+                value = '<div>' + self.view('simplelist', related)
+                value += '[<a href="%s">%s</a>]' % (self.build_url(rql=rql),
+                                                    self.req._('see them all'))
+                value +=  '</div>'
+        label = display_name(self.req, rschema.type, role)
+        self.field(label, value, show_label=show_label, tr=False)
+