#models.py
from django.db import models
# Create your models here.
class Tag(models.Model):
"""
标签表
"""
caption = models.CharField(verbose_name='标签', max_length=32)
class Course(models.Model):
"""
课程表
"""
title = models.CharField(verbose_name='课程名称', max_length=32)
class Module(models.Model):
"""
模块表
"""
level_choices = (
(1, '初级'),
(2, '中级'),
(3, '高级'),
)
level = models.IntegerField(verbose_name='级别', choices=level_choices, default=1)
name = models.CharField(verbose_name='模块名称', max_length=32)
course = models.ForeignKey(to='Course', verbose_name='课程', on_delete=models.CASCADE)
class Video(models.Model):
"""
视频表
"""
title = models.CharField(verbose_name='视频名称', max_length=32)
vid = models.CharField(verbose_name='视频id', max_length=64)
tag = models.ManyToManyField(verbose_name='标签', to='Tag')
#urls.py
from django.urls import path, re_path, include
from drf import views
from rest_framework import routers
router = routers.DefaultRouter()
router.register('drf11', views.Drf11)
urlpatterns = [
path('index/', views.index, name='index'),
re_path('^drf01/(?P<version>w+)/$', views.Drf01.as_view(), name='drf01'),
path('drf02/', views.Drf02.as_view(), name='drf02'),
path('drf03/', views.Drf03.as_view(), name='drf03'),
path('drf04/', views.Drf04.as_view(), name='drf04'),
path('drf05/', views.Drf05.as_view({'get': 'list', 'post': 'create'}), name='drf05'),
re_path('^drf05/(?P<pk>d+)/$',
views.Drf05.as_view({'get': 'retrieve', 'put': 'update', 'delete': 'destroy', 'patch': 'partial_update'}),
name='drf05'),
path('drf06/', views.Drf06.as_view({'get': 'list', 'post': 'create'}), name='drf06'),
re_path('^drf06/(?P<pk>d+)/$',
views.Drf06.as_view({'get': 'retrieve', 'put': 'update', 'delete': 'destroy', 'patch': 'partial_update'}),
name='drf06'),
path('drf07/', views.Drf07.as_view(), name='drf07'),
re_path('^drf08/(?P<pk>d+)/$', views.Drf08.as_view(), name='drf08'),
path('drf08/', views.Drf08.as_view(), name='drf08'),
re_path('^drf09/(?P<pk>d+)/$',
views.Drf09.as_view({'get': 'retrieve', 'put': 'update', 'delete': 'destroy', 'patch': 'partial_update'}),
name='drf09'),
path('drf09/', views.Drf09.as_view({'get': 'list', 'post': 'create'}), name='drf09'),
path('drf10/', views.Drf10.as_view(), name='drf10'),
re_path('^drf10/(?P<pk>d+)/$', views.Drf10.as_view(), name='drf10'),
path('', include(router.urls)),
path('drf12/', views.Drf12.as_view(), name='drf12'),
re_path('^drf12/(?P<pk>d+)/$', views.Drf12.as_view(), name='drf12'),
]
#views.py
from django.shortcuts import render
from django.http import HttpResponse
from rest_framework.views import APIView
from rest_framework.generics import ListAPIView, CreateAPIView, RetrieveAPIView
from rest_framework.viewsets import ModelViewSet
from rest_framework.response import Response
from rest_framework.versioning import URLPathVersioning
from drf import ser, models
def index(request):
return HttpResponse('ok')
#接口返回一个字符串含有版本。
class Drf01(APIView):
versioning_class = URLPathVersioning
def get(self, request, *args, **kwargs):
data = {'version': request.version}
return Response(data=data)
#接口返回一个xml文件的内容。
class Drf02(APIView):
def get(self, request, *args, **kwargs):
with open('drf/templates/abc.xml') as f:
xml = f.read()
# print(xml)
return Response(data=xml)
#接口基于APIView实现对课程表的获取所有数据，增加数据。
class Drf03(APIView):
def get(self, request, *args, **kwargs):
result = {'status': True, 'data': {}, 'error': {}}
querset = models.Course.objects.all()
seri = ser.CourseSerializer(instance=querset, many=True)
result['data'] = seri.data
return Response(data=result)
def post(self, request, *args, **kwargs):
result = {'status': True, 'data': {}, 'error': {}}
seri = ser.CourseSerializer(data=request.data)
if seri.is_valid():
seri.save()
else:
result['status'] = False
result['error'] = seri.errors
return Response(result)
#接口基于ListAPIView、CreateAPIView获取所有数据，增加数据。
class Drf04(ListAPIView, CreateAPIView):
queryset = models.Course.objects.all()
serializer_class = ser.CourseSerializer
#接口对Course表实现增删改查。
class Drf05(ModelViewSet):
queryset = models.Course.objects.all()
serializer_class = ser.CourseSerializer
#接口对Course表实现增删改查，列表页面的功能不去数据库获取，而去文件中获取。
class Drf06(ModelViewSet):
queryset = models.Course.objects.all()
serializer_class = ser.CourseSerializer
def list(self, *args, **kwargs):
with open('drf/file/course.txt') as f:
data = f.read()
return Response(data=data)
#接口基于APIView+serializer实现对模块表获取数据。显示数据，只显示id和name，只显示id、name、课程名称，只显示id、name、级别名称、课程名称。
class Drf07(APIView):
def get(self, *args, **kwargs):
querset = models.Module.objects.all()
seri = ser.ModuleSerializer(instance=querset, many=True)
return Response(seri.data)
#接口基于RetrieveAPIView, CreateAPIView实现对module表的单条数据展示、增加。
class Drf08(RetrieveAPIView, CreateAPIView):
queryset = models.Module.objects.all()
serializer_class = ser.ModuleSerializer
#接口基于ModelViewSet实现对Module表增删改查。
class Drf09(ModelViewSet):
queryset = models.Module.objects.all()
serializer_class = ser.Module09Serializer
#接口实现对Video表获取视频列表，单条视频信息。
class Drf10(RetrieveAPIView, ListAPIView):
queryset = models.Video.objects.all()
serializer_class = ser.VideoSerializer
#接口实现对Video表增删改查。多对多操作实现tag名称。
class Drf11(ModelViewSet):
queryset = models.Video.objects.all()
serializer_class = ser.Video11Serializer
class Drf12(ListAPIView, RetrieveAPIView):
queryset = models.Module.objects.all()
serializer_class = ser.Module09Serializer
#ser.py
from rest_framework import serializers
from drf import models
class CourseSerializer(serializers.ModelSerializer):
class Meta:
model = models.Course
fields = '__all__'
class ModuleSerializer(serializers.ModelSerializer):
course_name = serializers.CharField(source='course.title')
level_text = serializers.CharField(source='get_level_display')
class Meta:
model = models.Module
# fields='__all__'
# exclude = ['course']
fields = ['id', 'name', 'level_text', 'course_name']
class Module09Serializer(serializers.ModelSerializer):
class Meta:
model = models.Module
fields = '__all__'
class VideoSerializer(serializers.ModelSerializer):
class Meta:
model = models.Video
fields = '__all__'
class Video11Serializer(serializers.ModelSerializer):
tag_txt = serializers.SerializerMethodField()
class Meta:
model = models.Video
fields = ['id', 'title', 'vid', 'tag', 'tag_txt']
def get_tag_txt(self, obj):
tag_list = obj.tag.all()
return [row.caption for row in tag_list]