#31 API basic implementation Compensation

* adds compensation fetching for API v1
* refactors filter into predefined lookup dict of super class (needs to be customized on subclasses)

api/views/v1/intervention.py

@@ -18,12 +18,10 @@ class APIInterventionViewV1(AbstractModelAPIViewV1):
     model = Intervention
 
     def get(self, request: HttpRequest, id):
-        _filter = {
-            "id": id,
-            "users__in": [self.user],
-            "deleted__isnull": True,
-        }
-        data = self.fetch_and_serialize(_filter)
+        self.lookup["id"] = id
+        self.lookup["users__in"] = [self.user]
+
+        data = self.fetch_and_serialize()
         return JsonResponse(data)
 
     def compensations_to_json(self, qs: QuerySet):
@@ -34,6 +32,8 @@ class APIInterventionViewV1(AbstractModelAPIViewV1):
         )
 
     def model_to_json(self, entry: Intervention):
+        modified_on = entry.modified or entry.created
+        modified_on = modified_on.timestamp
         entry_json = {
             "identifier": entry.identifier,
             "title": entry.title,
@@ -42,6 +42,8 @@ class APIInterventionViewV1(AbstractModelAPIViewV1):
             "compensations": self.compensations_to_json(entry.compensations.all()),
             "payments": self.payments_to_json(entry.payments.all()),
             "deductions": self.deductions_to_json(entry.deductions.all()),
+            "modified_on": modified_on,
+            "created_on": entry.created.timestamp,
         }
         geom = entry.geometry.geom.geojson
         geo_json = json.loads(geom)