장고 나는이처럼 보이는 장고 모델이 오류

Question

나머지 프레임 워크 직렬화 :

이

from studentapp.models import AcademicPrograms, AcademicProgramsManager, StudentAcademicPrograms 
from rest_framework import serializers 

class StudentAcademicProgramsSerializer(serializers.ModelSerializer): 
    class Meta: 
     model = StudentAcademicPrograms 
    fields = ('credits_completed','academic_program_gpa','primary_program') 

class AcademicProgramsSerializer(serializers.ModelSerializer): 
    studentacademicprograms = StudentAcademicProgramsSerializer(many = True) 

    class Meta: 
     model = AcademicPrograms 
     fields = ('acad_program_id','program_title','required_credits','studentacademicprograms') 

내 api.py 파일은 다음과 같습니다 :

이 내 serializers.py 파일이

class AcademicProgramsManager(models.Manager): 
    def get_by_natural_key(self, acad_program_id, program_title, required_credits): 
     return self.get(acad_program_id = acad_program_id, program_title = program_title, required_credits = required_credits) 

class AcademicPrograms(models.Model): 

    objects = AcademicProgramsManager() 
    acad_program_id = models.IntegerField(primary_key=True) 
    acad_program_category = models.ForeignKey(AcademicProgramCategories) 
    acad_program_type = models.ForeignKey(AcademicProgramTypes) 
    acad_program_code = models.CharField(max_length=25) 
    program_title = models.CharField(max_length=64) 
    required_credits = models.IntegerField() 
    min_gpa = models.FloatField() 
    description = models.CharField(max_length=1000) 

    def natural_key(self): 
     return (self.acad_program_id, self.program_title, self.required_credits) 

class StudentAcademicPrograms(models.Model): 
    student = models.ForeignKey(Students) 
    academic_program = models.ForeignKey(AcademicPrograms) 
    credits_completed = models.IntegerField() 
    academic_program_gpa = models.FloatField() 
    primary_program = models.BooleanField() 

입니다

from studentapp.models import AcademicPrograms, AcademicProgramsManager, StudentAcademicPrograms 
from studentapp.serializers import StudentAcademicProgramsSerializer, AcademicProgramsSerializer 
from django.http import Http404 
from rest_framework.views import APIView 
from rest_framework.response import Response 

class AcademicProgramsList(APIView): 
    def get(self, request, format=None): 
     academicprograms = AcademicPrograms.objects.all() 
     serialized_academicprograms = AcademicProgramsSerializer(academicprograms, many=True) 
     return Response(serialized_academicprograms.data) 

class AcademicProgramsDetail(APIView): 

    def get_onjects(self, pk): 
     try: 
      return AcademicPrograms.object.get(pk=pk) 
     except AcademicPrograms.DoesNotExist: 
      raise Http404 

    def get(self, request, pk, format=None): 
     academicprogram = self.get_object(pk) 
     serialized_academicprogram = AcademicProgramsSerializer(academicprogram) 
     return Response(serialized_academicprogram.data) 

그리고 마지막으로 내 URL을 :

난 내 API를 줄 때

나는 어디에서 잘못 가고

'AcademicPrograms' object has no attribute 'studentacademicprograms' 

studentacademicprograms/다음과 같은 오류는 무엇입니까?

Answer 1

source을 모델의 속성/메소드 이름으로 설정해보십시오. 예를 들어 :

studentacademicprograms = StudentAcademicProgramsSerializer(
    many=True, 
    source='studentacademicprograms_set') 

Django Rest Framework Serializer relations docs에 주어진 예는 시리얼 라이저 (기본값)에서 속성 이름과 일치하는 모델에 관련된 이름을 설정합니다. 이름이 일치하지 않으면 사용하려는 모델의 소스 메소드/속성을 지정해야합니다.