#31 API basic implementation Cleanup

* cleans code
* reworks many code fragments into smaller methods and split into super class

api/utils/serializer/serializer.py

@@ -118,3 +118,20 @@ class AbstractModelAPISerializer:
             geojson = json.dumps(geojson)
         geometry = geos.fromstr(geojson)
         return geometry
+
+    def get_obj_from_db(self, id, user):
+        """ Returns the object from database
+
+        Fails if id not found or user does not have shared access
+
+        Args:
+            id (str): The object's id
+            user (User): The API user
+
+        Returns:
+
+        """
+        return self.model.objects.get(
+            id=id,
+            users__in=[user]
+        )

api/utils/serializer/v1/intervention.py

@@ -135,3 +135,35 @@ class InterventionAPISerializerV1(AbstractModelAPISerializerV1):
             celery_update_parcels.delay(obj.geometry.id)
 
             return obj.id
+
+    def update_model_from_json(self, id, json_model, user):
+        """ Updates an entry for the model based on the contents of json_model
+
+        Args:
+            id (str): The object's id
+            json_model (dict): The json containing data
+            user (User): The API user
+
+        Returns:
+            created_id (str): The id of the newly created Intervention entry
+        """
+        with transaction.atomic():
+            obj = self.get_obj_from_db(id, user)
+
+            # Fill in data to objects
+            properties = json_model["properties"]
+            obj.title = properties["title"]
+            self.set_responsibility(obj, properties["responsible"])
+            self.set_legal(obj, properties["legal"])
+            obj.geometry.geom = self.create_geometry_from_json(json_model)
+
+            obj.responsible.save()
+            obj.geometry.save()
+            obj.legal.save()
+            obj.save()
+
+            obj.users.add(user)
+
+            celery_update_parcels.delay(obj.geometry.id)
+
+            return obj.id