dashboard: allow cloning permissions of parent template

circle/dashboard/forms.py

@@ -90,9 +90,15 @@ class VmSaveForm(OperationForm):
 
     def __init__(self, *args, **kwargs):
         default = kwargs.pop('default', None)
+        clone = kwargs.pop('clone', False)
         super(VmSaveForm, self).__init__(*args, **kwargs)
         if default:
             self.fields['name'].initial = default
+        if clone:
+            self.fields.insert(2, "clone", forms.BooleanField(
+                required=False, label=_("Clone template permissions"),
+                help_text=_("Clone the access list of parent template. Useful "
+                            "for updating a template.")))
 
 
 class VmCustomizeForm(forms.Form):

circle/dashboard/views/vm.py

@@ -457,6 +457,10 @@ class VmSaveView(FormOperationMixin, VmOperationView):
         op = self.get_op()
         val = super(VmSaveView, self).get_form_kwargs()
         val['default'] = op._rename(op.instance.name)
+        obj = self.get_object()
+        if obj.template and obj.template.has_level(
+                self.request.user, "owner"):
+            val['clone'] = True
         return val