后台主页模块设计

11.后台主页模块设计

一、创建app home

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

二、路由分发

1. 主路由：luffyapi/urls.py

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

2.子路由

from django.urls import path, re_path
urlpatterns = [

]

三、Banner数据表model设计

1. utils/model.py

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_npython
    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

2. home/models.py

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

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

    def __str__(self):
        return self.title

3. 数据迁移：在大luffyapi路径下的终端

python manage.py makemigrations
python manage.py migrate

四、设计Banner数据接口

1. home/serializers.py

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

2. home/views.py

from rest_framework.viewsets import ModelViewSet
from rest_framework import mixins
from . import models, serializers

class BannerViewSet(ModelViewSet, mixins.ListModelMixin):
    queryset = models.Banner.objects.filter(is_delete=False, is_show=True).all()
    serializer_class = serializers.BannerSerializer

3. home/urls.py

from django.urls import path, include
from utils.router import router
from . import views
# 注册ViewSet的路由
router.register('banners', views.BannerViewSet, 'banner')

urlpatterns = [
    path('', include(router.urls)),
]

4.接口

http://localhost:8000/home/banners/python