I have the following models:
class SearchCity(models.Model):
city = models.CharField(max_length=200)
class SearchNeighborhood(models.Model):
city = models.ForeignKey(SearchCity, on_delete=models.CASCADE)
neighborhood = models.CharField(max_length=200)
and then the following nested serializer:
class CityNeighborhoodReadOnlySerializer(serializers.ModelSerializer):
searchneighborhood_set = serializers.PrimaryKeyRelatedField(many=True, read_only=True)
class Meta:
model = SearchCity
fields = ('city','searchneighborhood_set')
read_only_fields =('city', 'searchneighborhood_set')
paired with the view:
class CityNeighborhoodView(ListAPIView):
queryset = SearchCity.objects.all()
serializer_class = CityNeighborhoodReadOnlySerializer
when I make the api call I get this:
city: "Chicago"
searchneighborhood_set:
0: 5
1: 4
2: 3
city: "New York"
searchneighborhood_set:
0: 8
1: 7
2: 6
Im just getting the primary keys of the objects related. Which is good I need that, but I also want the neighborhood
name how do I get that?
edit:
This question may shead some light. They are not using the primary key related serializer though, so my question would be (if this works of course, is what is the point of the primarykey related serializer then?
Django Rest Framework nested serializer not showing related data
The answer was to not use the primarykeyrelatedserializer
but rather the serializer used to serialize Searchneighborhood
objects.
I changed this:
class CityNeighborhoodReadOnlySerializer(serializers.ModelSerializer):
searchneighborhood_set = serializers.PrimaryKeyRelatedField(many=True, read_only=True)
class Meta:
model = SearchCity
fields = ('city','searchneighborhood_set')
read_only_fields =('city', 'searchneighborhood_set')
to this:
class CityNeighborhoodReadOnlySerializer(serializers.ModelSerializer):
searchneighborhood_set = SearchNeighborhoodSerializer(many=True, read_only=True)
class Meta:
model = SearchCity
fields = ('city','searchneighborhood_set')
read_only_fields =('city', 'searchneighborhood_set')
and went from this output:
city: "Chicago"
searchneighborhood_set:
0: 5
1: 4
2: 3
city: "New York"
searchneighborhood_set:
0: 8
1: 7
2: 6
to the one I wanted:
city: Chicago
searchneighborhood_set:
0: {pk: 5, neighborhood: 'River North}
....
but now a new question arises, what is the point of a primary key realated serializer?
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