from django.utils.deprecation import MiddlewareMixin
class CORSMiddleWare(MiddlewareMixin):
    def process_response(self, request, response):
        # 简单请求
        response['Access-Control-Allow-Origin'] = '*'  # *允许所有客户端
        # 非简单请求
        if request.method == 'OPTIONS':
            # res['Access-Control-Allow-Methods'] = 'DELETE,PUT'
            response['Access-Control-Allow-Methods'] = '*'
            response['Access-Control-Allow-Headers'] = '*'
        return response

 from django.contrib.auth.models import AbstractUser
        class User(AbstractUser):
            # 扩写，加入手机号，加入头像
            mobile = models.CharField(max_length=11, unique=True)
            # 需要pillow包的支持  pip install pillow
            icon = models.ImageField(upload_to='icon', default='icon/default.png')
            class Meta:
                db_table = 'luffy_user'
                verbose_name = '用户表'
                verbose_name_plural = verbose_name

            def __str__(self):
                return self.username

from django.db import models


class BaseModel(models.Model):
    # 是否显示，记录插入时间，最后修改时间，是否删除（软删除），排序
    # 课程表，也需要这些字段
    created_time = models.DateTimeField(auto_now_add=True, verbose_name='创建时间')
    updated_time = models.DateTimeField(auto_now=True, verbose_name='最后更新时间')
    is_delete = models.BooleanField(default=False, verbose_name='是否删除')
    is_show = models.BooleanField(default=True, verbose_name='是否上架')
    orders = models.IntegerField(verbose_name='优先级')

    class Meta:
        abstract = True  # 这个表，只用来继承，不会再数据库生成表

from utils.common_model import BaseModel
class Banner(BaseModel):
    title = models.CharField(max_length=16, unique=True, verbose_name='名称')
    image = models.ImageField(upload_to='banner', verbose_name='图片')  # 地址，存放轮播图的地址
    link = models.CharField(max_length=64, verbose_name='跳转链接')
    info = models.TextField(verbose_name='详情')  # 也可以用详情表，宽高出处

    class Meta:
        db_table = 'luffy_banner'
        verbose_name_plural = '轮播图表'

    def __str__(self):
        return self.title

from rest_framework.generics import GenericAPIView
from rest_framework.mixins import ListModelMixin
from rest_framework.generics import ListAPIView
from rest_framework.viewsets import ViewSetMixin, GenericViewSet
from .models import Banner
from .serializer import BannerSerializer
from django.conf import settings

# class BannerView(ViewSetMixin,ListAPIView): # 自动生成路由
# class BannerView(ViewSetMixin,GenericAPIView,ListModelMixin): # 自动生成路由

class BannerView(GenericViewSet, ListModelMixin):  # 自动生成路由
    queryset = Banner.objects.filter(is_delete=False, is_show=True).order_by('orders')[:settings.BANNER_COUNT]
    serializer_class = BannerSerializer

from rest_framework import serializers
from .models import Banner


class BannerSerializer(serializers.ModelSerializer):
    class Meta:
        model = Banner
        fields = ['id', 'image', 'link']

from django.contrib import admin
from django.urls import path
from home import views  # pycharm报错，但实际上不报错 ，只需要把加入到环境变量的路径都做成source root即可
from rest_framework.routers import SimpleRouter
from .views import BannerView

router = SimpleRouter()
# 127.0.0.1:8080/api/v1/home/banner/--- get
router.register('banner', BannerView, 'banner')

urlpatterns = [

]
urlpatterns += router.urls