1.rest组件python
2.跨域数据库
1.content-typedjango
Django内置的一个组件,帮助开发者作连表操做. [混搭]json
帮助生成了全部的表跨域
# 帮助你快速实现content_type操做 content_object = GenericForeignKey('content_type', 'object_id')
反向查找的时候方便微信
# 仅用于反向查找 price_police_list = GenericRelation('PricePolicy')
# PricePolicy.objects.create(price='9.9', period='30', content_object=obj) # 和上面的步骤同样, 自动拿到两个id 赋值给两个
viewsapp
from django.shortcuts import render, HttpResponse from app01 import models # Create your views here. def test(request): """ # # 1. 为学位课python全栈添加一个价格策略 : 一个月9.9 obj1 = models.DegreeCourse.objects.filter(title='python全栈').first() models.PricePolicy.objects.create(price=9.9, period=30, content_object=obj1) obj2 = models.DegreeCourse.objects.filter(title='python全栈').first() models.PricePolicy.objects.create(price=15.9, period=60, content_object=obj2) obj3 = models.DegreeCourse.objects.filter(title='python全栈').first() models.PricePolicy.objects.create(price=22.9, period=90, content_object=obj3) # # 1. 为普通课python全栈添加一个价格策略 : 一个月9.9 obj1 = models.Course.objects.filter(title='restframework').first() models.PricePolicy.objects.create(price=9.9, period=30, content_object=obj1) obj2 = models.Course.objects.filter(title='restframework').first() models.PricePolicy.objects.create(price=15.9, period=60, content_object=obj2) obj3 = models.Course.objects.filter(title='restframework').first() models.PricePolicy.objects.create(price=22.9, period=90, content_object=obj3) """ # 3. 根据课程ID获取课程 # 获取该课程的全部价格策略 content_type 封装了方法 course = models.Course.objects.filter(id=1).first() price_policys = course.price_police_list.all() print(price_policys) # <QuerySet [<PricePolicy: PricePolicy object>, <PricePolicy: PricePolicy object>, <PricePolicy: PricePolicy object>]> return HttpResponse('ok')
modelscors
from django.db import models from django.contrib.contenttypes.fields import GenericForeignKey, GenericRelation from django.contrib.contenttypes.models import ContentType # Create your models here. class Course(models.Model): """ 普通课程 """ title = models.CharField(max_length=32) # 仅用于反向查找 price_police_list = GenericRelation('PricePolicy') class DegreeCourse(models.Model): """ 学位课程 """ title = models.CharField(max_length=32) price_police_list = GenericRelation('PricePolicy') class PricePolicy(models.Model): """ 价格策略 """ price = models.IntegerField() period = models.IntegerField() # table_name = models.CharField(verbose_name="关联的表名称") # object_id = models.CharField(verbose_name="关联的表中的数据行的ID") # content_type 生成的表名称 content_type = models.ForeignKey(ContentType, verbose_name="关联的表名称") #7. course 8 . DegreeCourse object_id = models.IntegerField(verbose_name="关联的表中的数据行的ID") # 帮助你快速实现content_type操做 content_object = GenericForeignKey('content_type', 'object_id') # 1. 为学位课python全栈添加一个价格策略 : 一个月9.9 # 1 """ obj = DegreeCourse.objects.filter(title='python全栈').first() # obj.id cobj = ContentType.objects.filter(models='degreecourse').first() # cobj.id PricePolicy.objects.create(price='9.9', period='30', content_type=cobj, object_id=obj.id) """ # 2 引入content_object = GenericForeignKey('content_type', 'object_id') # obj = DegreeCourse.objects.filter(title='python全栈').first() # PricePolicy.objects.create(price='9.9', period='30', content_object=obj) # 和上面的步骤同样, 自动拿到两个id 赋值给两个
2.路飞学城(在线教育平台)运维
公司规模:数据库设计
部门:
开发:
测试: 1 运维: 1 产品经理: 1 UI:1 运营:1 销售:2 全职导师:2
开发的周期:
第一期: 6个月, 基本的功能,能用(前两个月能用了,可是出现bug)
第二期: 完善功能
第三期:
开发:
1.需求分析
2.原型+UI
3.数据库设计
4.功能开发
主站
VUE