# External ID support for serializer

* adds support for sending "external_identifier" in POST and PUT requests
* if an external identifier already exists on the database, the client will be informed that the entry should not be POSTed again but rather an update via PUT should be performed

api/utils/serializer/v1/intervention.py

@@ -150,10 +150,14 @@ class InterventionAPISerializerV1(AbstractModelAPISerializerV1,
 
             # Fill in data to objects
             properties = json_model["properties"]
+
+            external_identifier = properties.get("external_identifier", None)
+            self._check_external_identifier_on_entry_creation(external_identifier)
+
             obj.identifier = obj.generate_new_identifier()
-            obj.title = properties["title"]
-            self._set_responsibility(obj, properties["responsible"])
-            self._set_legal(obj, properties["legal"])
+            obj.title = properties.get("title", None)
+            self._set_responsibility(obj, properties.get("responsible", None))
+            self._set_legal(obj, properties.get("legal", None))
 
             obj.responsible.handler.save()
             obj.responsible.save()
@@ -161,6 +165,7 @@ class InterventionAPISerializerV1(AbstractModelAPISerializerV1,
             obj.legal.save()
             obj.save()
 
+        self._set_external_identifier(obj, external_identifier)
         obj.users.add(user)
         obj.log.add(obj.created)
 
@@ -186,7 +191,7 @@ class InterventionAPISerializerV1(AbstractModelAPISerializerV1,
 
             # Fill in data to objects
             properties = json_model["properties"]
-            obj.title = properties["title"]
+            obj.title = properties.get("title")
             self._set_responsibility(obj, properties.get("responsible", None))
             self._set_legal(obj, properties.get("legal", None))
             self._set_payments(obj, properties.get("payments", None))
@@ -199,6 +204,7 @@ class InterventionAPISerializerV1(AbstractModelAPISerializerV1,
             obj.legal.save()
             obj.save()
 
+        self._set_external_identifier(obj, properties.get("external_identifier", None))
         obj.mark_as_edited(user, edit_comment="API update")
         obj.send_data_to_egon()