Merge "The grouptype's parent_type definition is error"

1 files changed, 11 insertions, 0 deletions

diff --git a/tosca2heat/tosca-parser/toscaparser/elements/grouptype.py b/tosca2heat/tosca-parser/toscaparser/elements/grouptype.py
index ec5571c..5587f05 100644
--- a/tosca2heat/tosca-parser/toscaparser/elements/grouptype.py
+++ b/tosca2heat/tosca-parser/toscaparser/elements/grouptype.py
@@ -52,6 +52,17 @@ class GroupType(StatefulEntityType):
             self._validate_metadata(self.meta_data)
 
     @property
+    def parent_type(self):
+        '''Return a group statefulentity of this entity is derived from.'''
+        if not hasattr(self, 'defs'):
+            return None
+        pgroup_entity = self.derived_from(self.defs)
+        if pgroup_entity:
+            return GroupType(pgroup_entity, self.custom_def)
+        else:
+            return None
+
+    @property
     def description(self):
         return self.group_description