OpenConceptLab/ocl_issues#1320 | reference cascade to use unique reso…

…urces
OpenConceptLab · Jun 24, 2022 · 3620a05 · 3620a05
1 parent c639f65
commit 3620a05
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/core/collections/models.py b/core/collections/models.py
@@ -466,6 +466,12 @@ def get_concepts(self, system_version=None):
                 queryset |= result['concepts']
                 mapping_queryset |= result['mappings']
 
+            # distinct is to eliminate self mappings
+            queryset = Concept.objects.filter(
+                id__in=queryset.values_list('id', flat=True).distinct('versioned_object_id'))
+            mapping_queryset = Mapping.objects.filter(
+                id__in=mapping_queryset.values_list('id', flat=True).distinct('versioned_object_id'))
+
         if self.should_apply_filter():
             queryset = self.apply_filters(queryset, Concept)
         if self.should_transform_to_latest_version():