一. 创建home模块
# 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：home/urls.py
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
三. 注册home模块：dev.py
INSTALLED_APPS = [
'rest_framework',
'home',
]
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
