后台主页模块设计

home模块

创建home模块

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前提：在 luffy 虚拟环境下 1.终端从项目根目录进入apps目录 >: cd luffyapi & cd apps 2.创建app >: python ../../manage.py startapp home

路由分发

主路由：luffyapi/urls.py

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from django.urls import path, re_path, include urlpatterns = [ # ... path('home/', include('home.urls')), # ... ]

子路由：home/urls.py

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from django.urls import path, re_path urlpatterns = [ ]

Banner数据表model设计

utils/model.py

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from django.db import models class BaseModel(models.Model): 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') 　　# 参考字段 　　phone = models.ForeignKey("Teacher", related_name='teacher_bind', on_delete=models.CASCADE, verbose_name="手机号",null=True,db_constraint=False) classMeta: abstract = True

home/models.py

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from django.db import models from utils.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') 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 classMeta: db_table = 'luffy_banner' verbose_name_plural = '轮播图表' def__str__(self): return self.title

数据迁移：在大luffyapi路径下的终端

1 2	>: python manage.py makemigrations >: python manage.py migrate

注册home模块：dev.py

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INSTALLED_APPS = [ # ... 'rest_framework', 'home', ]

设计Banner数据接口

home/serializers.py

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from rest_framework import serializers from . import models class BannerSerializer(serializers.ModelSerializer): classMeta: model = models.Banner fields = ['title', 'image', 'link']

home/views.py

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from django.shortcuts import render from django.core.cache import cache from rest_framework.viewsets import GenericViewSet from rest_framework import mixins from . import models, serializers from luffyapi.utils.response import APIResponse class BannerViewSet(GenericViewSet, mixins.ListModelMixin): queryset = models.Banner.objects.filter(is_delete=False, is_show=True).all() serializer_class = serializers.BannerSerializer def list(self, request, *args, **kwargs): banner_list = cache.get('banner_list') if not banner_list: response = super().list(request, *args, **kwargs) cache.set('banner_list',response.data) return APIResponse(msg=response.data) else: print(banner_list) return APIResponse(msg=banner_list)

home/urls.py

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from django.urls import path, include from . import views from rest_framework import routers router = routers.SimpleRouter() # 注册ViewSet的路由 router.register('banners', views.BannerViewSet, 'banner') urlpatterns = [ path('', include(router.urls)),

接口

1	http://localhost:8000/home/banners/