Changeset 5936

Timestamp:

12 Apr 2011, 23:35:02 (14 years ago)

Author:

uli

Message:

Working example for faculty container page how to display subobjects by viewlets (with different permissions per viewlet).

Location:

main/waeup.sirp/trunk/src/waeup/sirp/browser

Files:

• templates/facultycontainerpage.pt (modified) (1 diff)
• templates/subobjectlist.pt (added)
• viewlets.py (modified) (1 diff)

main/waeup.sirp/trunk/src/waeup/sirp/browser/templates/facultycontainerpage.pt

@@ -30 +30 @@
   </tbody>
 </table>
+
+<div tal:content="structure provider:subobjectlist">
+  List of subobjects
+</div>

main/waeup.sirp/trunk/src/waeup/sirp/browser/viewlets.py

@@ -588 +588 @@
     link_title = 'Data Center'
     target_viewname = 'datacenter'
+
+class SubobjectLister(grok.ViewletManager):
+    """Very special viewlet manager that displays lists of subobjects.
+    """
+    grok.name('subobjectlist')
+    grok.template('subobjectlist')
+
+    def update(self):
+        # The default implementation of update() sets self.viewlets to
+        # a list of viewlets for the current context
+        # (self.context). We make use of that fact by retrieving all
+        # viewlets for all items in our context container by simply
+        # setting these items as context while we call the default
+        # update() method. So we get a list of lists of viewlets for
+        # each item in a 'row' (where a single item is a row).
+        rows = []
+        orig_context = self.context
+        for name, value in self.context.items():
+            # Retrieve all viewlets for the current item (not the context)
+            self.context = value
+            super(SubobjectLister, self).update() # sets self.viewlets
+            rows.append(self.viewlets)
+            self.context = orig_context
+        self.rows = rows
+        # Finally, set the viewlets we would retrieve normally...
+        super(SubobjectLister, self).update()
+        return
+
+
+class FacultyContainerListHead(grok.Viewlet):
+    """The header line of faculty container subobject lists.
+    """
+    grok.order(1)
+    grok.viewletmanager(SubobjectLister)
+    grok.context(IFacultyContainer)
+    grok.require('waeup.View')
+
+    def render(self):
+        return u'<th>Code</th><th>Title</th><th></th>'
+
+class FacultyListName(grok.Viewlet):
+    """Display a the title of a faculty as link in a list.
+    """
+    grok.order(1)
+    grok.viewletmanager(SubobjectLister)
+    grok.context(IFaculty)
+    grok.require('waeup.View')
+
+    def render(self):
+        return u'<a href="%s">%s</a>' % (
+            self.view.url(self.context), self.context.__name__)
+
+class FacultyListTitle(grok.Viewlet):
+    """Display the title of a faculty in a list.
+    """
+    grok.order(2)
+    grok.viewletmanager(SubobjectLister)
+    grok.context(IFaculty)
+    grok.require('waeup.View')
+
+    def render(self):
+        return self.context.title
+
+class FacultyRemoveButton(grok.Viewlet):
+    """Render a remove button for faculty lists.
+    """
+    grok.order(3)
+    grok.viewletmanager(SubobjectLister)
+    grok.context(IFaculty)
+    grok.require('waeup.manageUniversity')
+
+    def render(self):
+        return u'<div class="text-right"><form method="POST"><input class="text-right" type="submit" value="remove" /></form></div>'