dashboard: remove unnecessary get_rename_operation() method

circle/dashboard/templates/dashboard/vm-detail.html

@@ -55,7 +55,7 @@
     </div>
     <h1>
       <div id="vm-details-rename" class="vm-details-home-rename-form-div">
-        <form action="{{ rename_op.get_url }}" method="POST" id="vm-details-rename-form">
+        <form action="{{ op.rename.get_url }}" method="POST" id="vm-details-rename-form">
           {% csrf_token %}
           <div class="input-group vm-details-home-name">
             <input id="vm-details-rename-name" class="form-control input-sm" name="new_name" type="text" value="{{ instance.name }}"/>

circle/dashboard/templates/dashboard/vm-detail/home.html

@@ -16,7 +16,7 @@
           <small class="vm-details-home-edit-name">{{ instance.name }}</small>
         </div>
         <div class="js-hidden vm-details-home-rename-form-div" id="vm-details-home-rename">
-          <form action="{{ rename_op.get_url }}" method="POST">
+          <form action="{{ op.rename.get_url }}" method="POST">
             {% csrf_token %}
             <div class="input-group">
               <input type="text" name="new_name" value="{{ instance.name }}" class="form-control input-sm"/>

circle/dashboard/views/vm.py

@@ -134,7 +134,6 @@ class VmDetailView(GraphMixin, CheckedDetailView):
                                     kwargs={'pk': self.object.pk}),
             'ops': ops,
             'op': {i.op: i for i in ops},
-            'rename_op': self.get_rename_operation(instance),
             'connect_commands': user.profile.get_connect_commands(instance),
             'hide_tutorial': hide_tutorial,
             'fav': instance.favourite_set.filter(user=user).exists(),
@@ -284,19 +283,6 @@ class VmDetailView(GraphMixin, CheckedDetailView):
         return HttpResponseRedirect("%s#activity" %
                                     self.object.get_absolute_url())
 
-    def get_rename_operation(self, instance):
-        v = VmRenameView
-        try:
-            op = v.get_op_by_object(instance)
-            op.check_auth(self.request.user)
-            op.check_precond()
-        except PermissionDenied as e:
-            logger.debug('Not showing operation %s for %s: %s',
-                         'rename', instance, unicode(e))
-        except Exception:
-            return v.bind_to_object(instance, disabled=True)
-        return v.bind_to_object(instance)
-
 
 class VmTraitsUpdate(SuperuserRequiredMixin, UpdateView):
     form_class = TraitsForm