day74

视图层

from django.shortcuts import render
from rest_framework.views import APIView
from api import models
from api import serializers
from rest_framework.response import Response

# Create your views here.

class CarsAPIView(APIView):
    def get(self,request,*args,**kwargs):
        car_query = models.Car.objects.filter(is_delete=False).all()
        car_ser = serializers.CarModelSrealizer(instance=car_query,many=True)
        car_ser.is_valid(raise_exception=True)
        return Response(data={'status':0,'msg':'ok','results':car_ser.data},status=200)


from rest_framework.generics import GenericAPIView
class CarGenericView(GenericAPIView):
    queryset = models.Car.objects.filter(is_delete=False).all()
    serializer_class = serializers.CarModelSrealizer
    def get(self,request,*args,**kwargs):
        # car_query = models.Car.objects.filter(is_delete=False).all()
        car_query = self.get_queryset()
        # car_ser = serializers.CarModelSrealizer(instance=car_query,many=True)
        car_ser = self.get_serializer(car_query,many=True)
        car_ser.is_valid(raise_exception=True)
        return Response(data={'status':0,'msg':'ok','results':car_ser.data},status=200)

models.py

from django.db import models


class BaseModel(models.Model):
    is_delete = models.BooleanField(default=False)
    create_time = models.DateTimeField(auto_now_add=True)

    class Meta:
        abstract = True


class Car(BaseModel):
    name = models.CharField(max_length=64)
    price = models.DecimalField(max_digits=10, decimal_places=2)
    brand = models.ForeignKey(to='Brand', db_constraint=False, null=True, on_delete=models.SET_NULL,
                              related_name='detail')
    sponsors = models.ManyToManyField(to='Sponsor', db_constraint=False, related_name='detail')

    @property
    def brand_name(self):
        return self.name

    @property
    def sponsor_list(self):
        sponsor_list_temp = []
        for sponsor in self.sponsors.all():
            sponsor_dic = {
                'name': sponsor.name
            }
            try:
                sponsor_dic['phone'] = sponsor.detail.phone
            except:
                sponsor_dic['phone'] = ''
            sponsor_list_temp.append(sponsor_dic)
        return sponsor_list_temp

    def __str__(self):
        return self.name


class Brand(BaseModel):
    name = models.CharField(max_length=64)

    def __str__(self):
        return self.name


class Sponsor(BaseModel):
    name = models.CharField(max_length=64)

    def __str__(self):
        return self.name


class SponsorDetail(BaseModel):
    phone = models.CharField(max_length=11)
    sponsor = models.OneToOneField(to=Sponsor, db_constraint=False, on_delete=models.CASCADE, blank=True)

    class Meta:
        verbose_name_plural = '赞助商详情'

    def __str__(self):
        try:
            return self.sponsor.name + '的详情'
        except:
            return super().__str__()