Image id on city creation

apps/location/serializers/common.py

@@ -3,6 +3,7 @@ from django.contrib.gis.geos import Point
 from django.utils.translation import ugettext_lazy as _
 from rest_framework import serializers
 from location import models
+from gallery import models as gallery_models
 from utils.serializers import TranslatedField, ImageBaseSerializer
 
 
@@ -83,6 +84,11 @@ class CityBaseSerializer(serializers.ModelSerializer):
         queryset=models.Country.objects.all(),
         write_only=True
     )
+    image_id = serializers.PrimaryKeyRelatedField(
+        source='image',
+        queryset=gallery_models.Image.objects.all(),
+        write_only=True
+    )
     country = CountrySerializer(read_only=True)
 
     class Meta:
@@ -97,9 +103,10 @@ class CityBaseSerializer(serializers.ModelSerializer):
             'postal_code',
             'is_island',
             'image',
+            'image_id',
         ]
         extra_fields = {
-            'image': {'write_only': True}
+            'image': {'read_only': True}
         }