#49 Frontend rendering

* adds rendering for detail view
* adds new includable html snippet for parcel rendering
* refactors generic includables in konova/ app into konova/templates/includes/...
* fixes bug where parcels have been reused from the database due to wrong model structure
* adds get_underlying_parcels() for Geometry model
* adds get_underlying_parcels() for GeoReferencedMixin models
* fixes bug where missing geometry would lead to an error during geometry conflict check
* removes unused wfs attribute from AbstractWFSFetcher
* adds/updates translations

konova/models/geometry.py

@@ -111,12 +111,12 @@ class Geometry(BaseResource):
         for result in fetched_parcels:
             fetched_parcel = result[typename]
             parcel_obj = Parcel.objects.get_or_create(
+                gmrkng=fetched_parcel["ave:gemarkung"],
                 flr=fetched_parcel["ave:flur"],
                 flrstck_nnr=fetched_parcel['ave:flstnrnen'],
                 flrstck_zhlr=fetched_parcel['ave:flstnrzae'],
             )[0]
             district = District.objects.get_or_create(
-                gmrkng=fetched_parcel["ave:gemarkung"],
                 gmnd=fetched_parcel["ave:gemeinde"],
                 krs=fetched_parcel["ave:kreis"],
             )[0]
@@ -127,6 +127,20 @@ class Geometry(BaseResource):
 
         self.parcels.set(underlying_parcels)
 
+    def get_underlying_parcels(self):
+        """ Getter for related parcels and their districts
+
+        Returns:
+            parcels (QuerySet): The related parcels as queryset
+        """
+        parcels = self.parcels.all().prefetch_related(
+            "district"
+        ).order_by(
+            "gmrkng",
+        )
+
+        return parcels
+
 
 class GeometryConflict(UuidModel):
     """