1 files changed, 14 insertions, 0 deletions
diff --git a/archaeological_operations/models.py b/archaeological_operations/models.py
index 98be07abd..219589acf 100644
--- a/archaeological_operations/models.py
+++ b/archaeological_operations/models.py
@@ -398,6 +398,13 @@ class ArchaeologicalSite(DocumentItem, BaseHistorizedItem, QRCodeItem,
             return
         return q.all()[0].poly, self._meta.verbose_name
 
+    def get_town_polygons(self):
+        q = self.towns.filter(limit__isnull=False).annotate(
+            poly=Union('limit')).all()
+        if not q.count():
+            return None
+        return q.all()[0].poly
+
     def _get_base_image_path(self):
         return u"{}/{}".format(self.SLUG, self.reference)
 
@@ -1135,6 +1142,13 @@ class Operation(ClosedItem, DocumentItem, BaseHistorizedItem, QRCodeItem,
             return None
         return q.all()[0].poly, self._meta.verbose_name
 
+    def get_town_polygons(self):
+        q = self.towns.filter(limit__isnull=False).annotate(
+            poly=Union('limit')).all()
+        if not q.count():
+            return None
+        return q.all()[0].poly
+
     def context_record_relations_q(self):
         from archaeological_context_records.models \
             import RecordRelations as CRRL