[FIXED] AssertionError: The field ' ' was declared on serializer ' ', but has not been included in the 'fields' option

Issue

I am using 'Django Rest Framework' and I am trying to build a RestfulAPI. However I get the above error when I run my app : AssertionError: The field 'doctor' was declared on serializer AnimalSerialiser, but has not been included in the 'fields' option. I am not sure what fields are and therefore can't track down the issue.

My models.py :

from __future__ import unicode_literals

from django.db import models

# Create your models here.
class Doctor(models.Model):

    id= models.CharField(max_length=10, primary_key=True, unique=True)
    name = models.CharField(max_length=20)

    def __unicode__(self):
        return self.id

class Animal(models.Model):
    id = models.CharField(max_length=10, primary_key=True, unique=True)
    name = models.CharField(max_length=200)
    gender = models.CharField(max_length=10)
    breed = models.CharField(max_length=200)
    adoption = models.CharField(max_length=10)
    vaccines = models.CharField(max_length=20)
    doctor = models.ForeignKey(Doctor, null=True)

My serialisers.py :

from django.contrib.auth.models import User, Group
from rest_framework import serializers
from models import Animal, Doctor

class DoctorSerealiser(serializers.HyperlinkedModelSerializer):
    class Meta:
         model = Doctor
         fields = ('id' , 'name')


class AnimalSerialiser(serializers.HyperlinkedModelSerializer):
    doctor = DoctorSerealiser()


    class Meta:
        model = Animal
        fields = ('id' , 'name' , 'gender' , 'breed' , 'adoption' , 'vaccines', 'Doctor')

My views.py :

from django.shortcuts import render

# Create your views here.
from django.contrib.auth.models import User, Group
from rest_framework import viewsets, generics

from cw.myStart.models import Animal
from cw.myStart.serializers import AnimalSerialiser, DoctorSerealiser
from models import Animal, Doctor

class AnimalList(viewsets.ModelViewSet):
    queryset = Animal.objects.all()
    serializer_class = AnimalSerialiser

class DoctorDetail(viewsets.ModelViewSet):
    queryset = Doctor.objects.all()
    serializer_class = DoctorSerealiser

Solution

You need to modify your doctor field name to be the proper case:

fields = ('id' , 'name' , 'gender' , 'breed' , 'adoption' , 'vaccines', 'doctor')

Doctor is currently, incorrectly uppercase.

Answered By - rnevius