added endpoint ot get list of tag categories with tags by establishment type

apps/establishment/urls/back.py

@@ -30,6 +30,7 @@ urlpatterns = [
     path('employees/', views.EmployeeListCreateView.as_view(), name='employees'),
     path('employees/<int:pk>/', views.EmployeeRUDView.as_view(), name='employees-rud'),
     path('types/', views.EstablishmentTypeListCreateView.as_view(), name='type-list'),
+    path('types/tags/', views.EstablishmentTypeTagListView.as_view(), name='type-tag-list'),
     path('types/<int:pk>/', views.EstablishmentTypeRUDView.as_view(), name='type-rud'),
     path('types/attach-tag-category/', views.EstablishmentTypeAttachTagCategoryView.as_view(),
          name='type-attach-tag-category'),

apps/establishment/views/back.py

@@ -186,6 +186,13 @@ class EstablishmentTypeRUDView(generics.RetrieveUpdateDestroyAPIView):
     queryset = models.EstablishmentType.objects.all()
 
 
+class EstablishmentTypeTagListView(generics.ListAPIView):
+    """List of tags with categories by establishment type."""
+    serializer_class = serializers.EstablishmentTagsByType
+    queryset = models.EstablishmentType.objects.all()
+    pagination_class = None
+
+
 class EstablishmentSubtypeListCreateView(generics.ListCreateAPIView):
     """Establishment subtype list/create view."""
     serializer_class = serializers.EstablishmentSubTypeBaseSerializer