22.caseplatform 后端代码整体设计3

模块应用代码设计

module\models设计

模块表设计比较简单，基本和项目表一致，但是有个地方需要注意下，模块肯定属于项目，所以我们需要再模块表设个外键。

from django.db import models
from project.models import Projects
# Create your models here.
class Modules(models.Model):
    # on_delete=models.PROTECT作用:关联数据是受保护的，无法删除
    project = models.ForeignKey('project.Projects', on_delete=models.PROTECT)
    name = models.CharField(max_length=20, unique=True)
    desc = models.CharField(max_length=200, null=True, blank=True, default='')
    create_time = models.DateTimeField(auto_now_add=True)
    update_time = models.DateTimeField(auto_now=True)
    class Meta:
        # i.db_table指定创建的数据表名称
        db_table = 'module'
        # 为当前数据表设置中文描述信息
        verbose_name = '模块'
        verbose_name_plural = verbose_name
        ordering = ['id']
    def __str__(self):
        return self.name

生成表

生成迁移脚本

(env) D:\code\caseplatform>python manage.py makemigrations

生成数据表

(env) D:\code\caseplatform>python manage.py migrate

module\serializers.py设计

from rest_framework import serializers
from .models import Modules
class ModuleSerializer(serializers.ModelSerializer):
    class Meta:
        model = Modules
        exclude = ('update_time',)
        extra_kwargs = {
            "create_time": {
                "read_only": True,
                "format": "%Y年%m月%d日 %H:%M:%S"
            }
        }

module\views 设计

from .serializers import ModuleSerializer
from .models import Modules
from rest_framework import viewsets, permissions
# Create your views here.
class ModuleViewSet(viewsets.ModelViewSet):
    permission_classes = [permissions.IsAuthenticated]
    search_fields = ['=name']
    ordering_fields = ['name']
    queryset = Modules.objects.all()
    serializer_class = ModuleSerializer

module\urls 设计

from module import views
from rest_framework import routers
# 创建SimpleRouter路由对象
router = routers.SimpleRouter()
# 注册projects
router.register('modules', views.ModuleViewSet)
urlpatterns = router.urls