admin: add links to formdefs from a workflow page (#1908)

wcs/admin/workflows.ptl

@@ -638,6 +638,15 @@ class WorkflowPage(Directory):
             htmltext(graphviz(self.workflow, include=True))
         '</div>' # bo-block
 
+        formdefs = [x for x in FormDef.select() if x.workflow_id == self.workflow.id]
+        if formdefs:
+            '<div class="bo-block">'
+            '<h3>%s</h3>' % _('Forms')
+            '<p>%s ' % _('This workflow is used for the following forms:')
+            ', '.join(['<a href="../../forms/%s/">%s</a>' % (x.id, x.name) for x in formdefs])
+            '</p>'
+            '</div>'
+
         get_response().filter['sidebar'] = self.get_sidebar()
 
     def get_sidebar [html] (self):