我正在使用'Django Rest Framework',我正在尝试构建RestfulAPI。但是,当我运行我的应用时出现上述错误:AssertionError: The field 'doctor' was declared on serializer AnimalSerialiser, but has not been included in the 'fields' option.
我不确定fields
是什么,因此无法追踪问题。
我的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)
我的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')
我的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
感谢您的帮助。
答案 0 :(得分:5)
您需要修改doctor
字段名称才能成为正确的案例:
fields = ('id' , 'name' , 'gender' , 'breed' , 'adoption' , 'vaccines', 'doctor')
目前 Doctor
大写错误。
答案 1 :(得分:1)
无论您在Serializer中定义哪个字段,都需要将其放在元类字段中。如果你没有提到,你将收到错误。
builtins.AssertionError AssertionError:字段'abc'在序列化程序ABCSerializer上声明,但未包含在'fields'选项中。
因此,在您的情况下,您已在序列化程序中定义了 doctor 字段,因此您的元字段应具有此医生字段。 区分大小写。所以你必须使用医生而不是医生。
class AnimalSerialiser(serializers.HyperlinkedModelSerializer):
doctor = DoctorSerealiser()
class Meta:
model = Animal
fields = ('id' , 'name' , 'gender' , 'breed' , 'adoption' , 'vaccines', 'doctor')
答案 2 :(得分:1)
以上答案已经解决了这个特定问题。对我来说,我看到这个错误的原因完全不同,我在 fields
列表中的属性 id
后面缺少一个逗号,所以我收到了关于 name
的错误。
class SomeSerializer(serializers.ModelSerializer):
class Meta:
model = SomeModel
fields = (
'id' # missed a comma here
'name'
)