rest framwork 小試身手

models.py

from django.db import models

class course(models.model):
"""課程表
"""title = models.charfield(verbose_name='課程名稱',max_length=32)
course_img = models.charfield(verbose_name='課程',max_length=64)
level_choices = (
(1,'初級'),
(2,'中級'),
(3,'高階'),
)level = models.integerfield(verbose_name='課程難易程度',choices=level_choices,default=1)
def __str__(self):
return self.title
class coursedetail(models.model):
"""課程詳細
"""course = models.onetoonefield(to='course')
slogon = models.charfield(verbose_name='口號',max_length=255)
why = models.charfield(verbose_name='為什麼要學？',max_length=255)
recommend_courses = models.manytomanyfield(verbose_name='推薦課程',to='course',related_name='rc')
def __str__(self):
return "課程詳細："+self.course.title
class chapter(models.model):
"""章節
"""num =  models.integerfield(verbose_name='章節')
name = models.charfield(verbose_name='章節名稱',max_length=32)
course = models.foreignkey(verbose_name='所屬課程',to='course')
def __str__(self):
return self.name

from django.conf.urls import url,include

from api.views import course
urlpatterns = [
url(r'^course/$', course.courseview.as_view()),
url(r'^course/(?p\d+)$', course.courseview.as_view()),
url(r'^test$', course.test),
]

from rest_framework.views import apiview

from rest_framework.response import response
from api import models
from rest_framework import serializers
class courseserializer(serializers.modelserializer):
class meta:
model = models.course
fields = "__all__"
class coursedetailserializer(serializers.modelserializer):
# one2one/fk/choice
title = serializers.charfield(source='course.title')
img = serializers.charfield(source='course.course_img')
level = serializers.charfield(source='course.get_level_display')
# m2m
recommends = serializers.serializermethodfield()
class meta:
model = models.coursedetail
fields = ['course','title','img','level','slogon','why','recommends']
def get_recommends(self,obj):
# 獲取推薦的所有課程
queryset = obj.recommend_courses.all()
return [ for row in queryset]
# view
# apiview
# genericapiview
from rest_framework.viewsets import genericviewset,viewsetmixin,modelviewset
class courseview(viewsetmixin,apiview):
def list(self,request,*args,**kwargs):
"""課程列表介面
:param request:
:param args:
:param kwargs:
:return:
"""ret = 
try:
queryset = models.course.objects.all()
ser = courseserializer(instance=queryset,many=true)
ret['data'] = ser.data
except exception as e:
ret['code'] = 1001
ret['error'] = '獲取課程失敗'
return response(ret)
def retrieve(self,request,*args,**kwargs):
"""課程詳細介面
:param request:
:param args:
:param kwargs:
:return:
"""ret = 
try:
# 課程id=2
pk = kwargs.get('pk')
# 課程詳細物件
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'] = '獲取課程失敗'

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