#31 API basic implementation Ema fetch

* adds API support for fetching EMA

api/urls/v1/urls.py

@@ -9,6 +9,7 @@ from django.urls import path
 
 from api.views.v1.compensation import APICompensationViewV1
 from api.views.v1.ecoaccount import APIEcoAccountViewV1
+from api.views.v1.ema import APIEmaViewV1
 from api.views.v1.intervention import APIInterventionViewV1
 
 app_name = "v1"
@@ -16,4 +17,5 @@ urlpatterns = [
     path("intervention/<id>", APIInterventionViewV1.as_view(), name="intervention"),
     path("compensation/<id>", APICompensationViewV1.as_view(), name="compensation"),
     path("ecoaccount/<id>", APIEcoAccountViewV1.as_view(), name="ecoaccount"),
+    path("ema/<id>", APIEmaViewV1.as_view(), name="ema"),
 ]

api/views/v1/ema.py

@@ -0,0 +1,41 @@
+"""
+Author: Michel Peltriaux
+Organization: Struktur- und Genehmigungsdirektion Nord, Rhineland-Palatinate, Germany
+Contact: michel.peltriaux@sgdnord.rlp.de
+Created on: 21.01.22
+
+"""
+import json
+
+from django.http import JsonResponse, HttpRequest
+
+from api.views.v1.ecoaccount import APIEcoAccountViewV1
+from ema.models import Ema
+
+
+class APIEmaViewV1(APIEcoAccountViewV1):
+    model = Ema
+
+    def get(self, request: HttpRequest, id):
+        self.lookup["id"] = id
+        self.lookup["users__in"] = [self.user]
+
+        data = self.fetch_and_serialize()
+        return JsonResponse(data)
+
+    def model_to_json(self, entry):
+        entry_json = {
+            "identifier": entry.identifier,
+            "title": entry.title,
+            "responsible": self.responsible_to_json(entry.responsible),
+            "before_states": self.compensation_state_to_json(entry.before_states.all()),
+            "after_states": self.compensation_state_to_json(entry.after_states.all()),
+            "actions": self.compensation_actions_to_json(entry.actions.all()),
+            "deadlines": self.deadlines_to_json(entry.deadlines.all()),
+            "modified_on": self.modified_on_to_json(entry),
+            "created_on": self.created_on_to_json(entry),
+        }
+        geom = entry.geometry.geom.geojson
+        geo_json = json.loads(geom)
+        geo_json["properties"] = entry_json
+        return geo_json