django-rest-framework: Setting up serializer for foreign key - django

Question

In my model, I have two tables named: Vtable and Vdata. Each virtual table (in Vtable) has entries of virtual data stored in Vdata.
I'm trying to make a view that would show the list of Vdata corresponding to each Vtable
My serializer isn't working and I think it's because I'm doing it backwards.
I think the problem is in this line:
table_id = serializers.RelatedField(many=True)
For reference, I get this error: 'Vtable' object is not iterable
Here is my models.py:
from django.db import models
from django.contrib.auth.models import User
class Vtable(models.Model):
user = models.ForeignKey(User)
table_name = models.CharField(max_length=200)
added_date = models.DateTimeField('date added')
def __unicode__(self):
return self.table_name
class Vdata(models.Model):
table_id = models.ForeignKey(Vtable)
table_pk = models.IntegerField()
column_1 = models.CharField(max_length=200)
column_2 = models.CharField(max_length=200)
added_date = models.DateTimeField('date added')
def __unicode__(self):
return str(self.added_date)
Here is my serializers.py:
from django.contrib.auth.models import User, Group
from rest_framework import serializers
from vtables.models import Vtable, Vdata
class TableSerializer(serializers.HyperlinkedModelSerializer):
user = serializers.Field(source='user.username')
class Meta:
model = Vtable
fields = ('table_name', 'added_date', 'user')
class EntrySerializer(serializers.HyperlinkedModelSerializer):
table_id = serializers.RelatedField(many=True)
class Meta:
model = Vdata
fields = ('table_id', 'table_pk', 'column_1', 'column_2', 'added_date')
Here is the view that calls it:
class EntryList(APIView):
def get(self, request, format=None):
entries = Vdata.objects.all()
serializer = EntrySerializer(entries, many=True)
return Response(serializer.data
class Meta:
model = Vdata
fields = ('table_id', 'table_pk', 'column_1', 'column_2', 'added_date')

Answer 1

Here is an example of how you might do this:
class TableSerializer(serializers.HyperlinkedModelSerializer):
user = serializers.Field(source='user.username')
entries = EntrySerializer(many=True)
class Meta:
model = Vtable
fields = ('table_name', 'added_date', 'user', 'entries')
class EntrySerializer(serializers.HyperlinkedModelSerializer):
class Meta:
model = Vdata
fields = ('table_id', 'table_pk', 'column_1', 'column_2', 'added_date')
And for the view:
class EntryList(GenericAPIView):
queryset = Vtable.objects.all()
serializer_class = TableSerializer
Do not forget about:
setting related_name='entries' in your model foreign key field definition.