Django API接口FK ManyTo Many 模板

Url

from django.contrib import admin
from django.urls import path, re_path
from django.urls import include

urlpatterns = [
    re_path(r'^admin/', admin.site.urls),
    re_path('^api/(?P<version>[v1|v2]\w+)/', include('app01.urls')),
]

from django.urls import path, re_path
from django.urls import include
from app01.views import account, coursehost, newspapers

urlpatterns = [
    re_path('login/$', account.LoginView.as_view()),

    re_path('course/$', coursehost.CourseView.as_view({"get": "list"})),
    re_path('course/(?P<pk>\d+)/$', coursehost.CourseView.as_view({"get": "retrieve"})),
    re_path(r'coursecategory/$', coursehost.CourseCategoryView.as_view({'get': 'list'})),

]

序列化

"""
* coding: utf-8

CreateTime：2019/12/18
Version: v1
DocName: account.py
Edit: Riven

Effect: Course serializers

SourceStorageLocation: RivenShop / app01 / views / coursehost.py
Modify and add function record:
        ModifyTime:
            1.
            2.
        Add function Time :
            1.
            2.

"""

from app01 import models
from rest_framework import serializers

# Course
class CourseSerializer(serializers.ModelSerializer):
    # (0, '初级'), (1, '中级'), (2, '高级') Can get value
    course_type = serializers.CharField(source='get_course_type_display')
    status = serializers.CharField(source='get_status_display')
    level = serializers.CharField(source='get_level_display')

    class Meta:
        model = models.Course
        fields = ['id', 'name', 'course_type', 'level', 'sub_category', 'degree_course', 'course_img', 'status',
                  'brief', 'pub_date', 'period', 'attachment_path']

# CourseCategory
class CourseCategorySerializer(serializers.ModelSerializer):
    class Meta:
        model = models.CourseCategory
        fields = '__all__'

class CourseDetailSerializer(serializers.ModelSerializer):
    # one2one/fk/choice  Fk inquire
    name = serializers.CharField(source='course.name')
    img = serializers.CharField(source='course.course_img')
    level = serializers.CharField(source='course.get_level_display')

    # m2m
    recommend_courses = serializers.SerializerMethodField()
    teachers = serializers.SerializerMethodField()

    # FK reverse
    coursechapter = serializers.SerializerMethodField()

    class Meta:
        model = models.CourseDetail
        fields = ['id', 'hours', 'course_slogan', 'video_brief_link', 'why_study', 'what_to_study_brief',
                  'career_improvement', 'prerequisite', 'name', 'level', 'img', 'recommend_courses', 'teachers',
                  'coursechapter']

    def get_recommend_courses(self, obj):
        """acquire recommend course"""
        queryset = obj.recommend_courses.all()
        return [{'id': row.id, 'name': row.name} for row in queryset]

    def get_teachers(self, obj):
        """acquire teachers all"""
        obj = obj.teachers.all()
        return [{'id': row.id, 'name': row.name} for row in obj]

    def get_coursechapter(self, obj):
        """acquire chapter all base on reverse"""
        obj = obj.course.coursechapters.all()

        return [{'id': row.id} for row in obj]

视图

"""
* coding: utf-8

CreateTime：2019/12/17
Version: v1
DocName: account.py
Edit: Riven

Effect: Supply data for Course

SourceStorageLocation: RivenShop / app01 / views / Coursehost
Modify and add function record:
        ModifyTime:
            1.
            2.
        Add function Time :
            1.
            2.

"""

from app01 import models
from serializers.course import CourseCategorySerializer, CourseDetailSerializer, CourseSerializer

from rest_framework.views import APIView
from rest_framework.response import Response
from rest_framework.viewsets import ViewSetMixin

class CourseCategoryView(ViewSetMixin, APIView):
    """
        Course main class

    """

    def list(self, request, *args, **kwargs):

        ret = {"code": 1000, "data": None}
        try:
            queryset = models.CourseCategory.objects.all()
            ser = CourseCategorySerializer(instance=queryset, many=True)
            ret['data'] = ser.data
        except Exception as e:
            ret['code'] = 1001
            ret['error'] = '获取课程失败'

        return Response(ret)

class CourseView(ViewSetMixin, APIView):

    def list(self, request, *args, **kwargs):
        """
         Course list Api

        """

        ret = {'code': 1000, 'data': None}
        try:
            queryset = models.Course.objects.all()
            ser = CourseSerializer(instance=queryset, many=True)
            print(ser.data)
            ret['data'] = ser.data

        except Exception as e:
            ret['code'] = 1001
            ret['error'] = '获取课程失败'

        return Response(ret)

    def retrieve(self, request, *args, **kwargs):
        """

        CourseDetail api

        """

        ret = {'code': 1000, 'data': None}

        try:
            # Acquire course id
            pk = kwargs.get('pk')
            # CourseDetail object
            obj = models.CourseDetail.objects.filter(course_id=pk).first()
            ser = CourseDetailSerializer(instance=obj, many=False)
            ret['data'] = ser.data

        except Exception as e:
            ret['code'] = 1001
            ret['error'] = '获取课程详细失败'

        return Response(ret)