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
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>: 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
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http://localhost:8000/home/banners/

posted on 2020-12-09 15:56  Plyc  阅读(87)  评论(0)  编辑  收藏  举报

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