added geo module, with region supporting gis data

geo/views.py

@@ -0,0 +1,72 @@
+from rest_framework.response import Response
+from tenants.views import CustomViewSet, CustomExternalViewSet
+from rest_framework import viewsets, status
+from rest_framework.decorators import permission_classes
+from legalq.permissions import GlobalAccess
+
+from . import models
+from . import serializers
+
+
+class CountryViewSet(CustomExternalViewSet):
+    model = models.Country
+    read_serializer_class = serializers.CountryReadSerializer
+    write_serializer_class = serializers.CountryWriteSerializer
+    model_name = 'country'
+    queryset = models.Country.objects.all()
+    filterset_fields = ('name', )
+
+    def retrieve(self, request, *args, **kwargs):
+        instance = models.Country.objects.filter(pk=kwargs['pk']).first()
+        if instance is not None:
+            serializer = self.read_serializer_class(instance)
+            return Response(serializer.data)
+        return Response(status=status.HTTP_404_NOT_FOUND)
+
+    permission_classes = [GlobalAccess]
+
+
+class RegionViewSet(viewsets.ReadOnlyModelViewSet):
+    model = models.Region
+    serializer_class = serializers.RegionReadSerializer
+    write_serializer_class = serializers.RegionWriteSerializer
+    model_name = 'region'
+    queryset = models.Region.objects.all()
+    filterset_fields = ('name', 'country__name')
+
+    permission_classes = [GlobalAccess]
+
+
+class ProvinceViewSet(CustomExternalViewSet):
+    model = models.Province
+    read_serializer_class = serializers.ProvinceReadSerializer
+    model_name = 'region'
+    queryset = models.Province.objects.all()
+    filterset_fields = ('name', 'region__country__name')
+
+    def retrieve(self, request, *args, **kwargs):
+        instance = models.Province.objects.filter(pk=kwargs['pk']).first()
+        if instance is not None:
+            serializer = self.read_serializer_class(instance)
+            return Response(serializer.data)
+        return Response(status=status.HTTP_404_NOT_FOUND)
+
+    permission_classes = [GlobalAccess]
+
+
+class CityViewSet(CustomExternalViewSet):
+    model = models.City
+    read_serializer_class = serializers.CityReadSerializer
+    write_serializer_class = serializers.CityWriteSerializer
+    model_name = 'city'
+    queryset = models.City.objects.all()
+
+    def retrieve(self, request, *args, **kwargs):
+        instance = models.City.objects.filter(pk=kwargs['pk']).first()
+        if instance is not None:
+            serializer = self.read_serializer_class(instance)
+            return Response(serializer.data)
+        return Response(status=status.HTTP_404_NOT_FOUND)
+
+    permission_classes = [GlobalAccess]
+    filterset_fields = ('name', 'province__name', 'province__region__name')