transmitters legacy fixed

apps/hadis/serializers/serializers_admin.py

@@ -754,8 +754,18 @@ class AdminTransmitterDetailSerializer(serializers.ModelSerializer):
                     data[json_field] = json.loads(val)
                 except ValueError:
                     pass
+
+        # Handle empty/null values for optional integer fields
+        for field in ["legacy_number", "age_at_death", "generation"]:
+            if field in data and (data[field] == "" or data[field] is None or data[field] == "null" or data[field] == "undefined"):
+                data[field] = None
+
         return super().to_internal_value(data)
 
+    def create(self, validated_data):
+        validated_data.pop("remove_thumbnail", False)
+        return super().create(validated_data)
+
     def update(self, instance, validated_data):
         remove_thumbnail = validated_data.pop("remove_thumbnail", False)
         if remove_thumbnail and instance.thumbnail: