Ticket #25953: arrayfield_condtionally_add_from_db_value.diff

django/contrib/postgres/fields/array.py

@@ -28 +28 @@
             self.default_validators = self.default_validators[:]
             self.default_validators.append(ArrayMaxLengthValidator(self.size))
         super(ArrayField, self).__init__(**kwargs)
+        if hasattr(self.base_field, 'from_db_value'):
+            import types
+            def from_db_value(self, value, expression, connection, context):
+                return [self.base_field.from_db_value(i, expression, connection, context) for i in value]
+            
+            self.from_db_value = types.MethodType(from_db_value, self)
 
     def contribute_to_class(self, cls, name, **kwargs):
         super(ArrayField, self).contribute_to_class(cls, name, **kwargs)