商品模块表结构分析

1.表结构分析

1.1 商品模块表结构分析

from django.db import models 
from utils.MyBaseModel import Base 

class Goods(Base): 
    GOODS_TYPE = (
        ('1', 'Vip'), 
        ('2', 'Course')
    )
    CHANNEL_TYPE = (
        ('1', '普通'),
        ('2', '促销')
    )
    course = models.ForeignKey('course.Course', on_delete=models.PROTECT) 
    goods_type = models.CharField('商品种类', choices=GOODS_TYPE, max_length=8) 
    product_id = models.CharField('产品id', max_length=8) 
    title = models.CharField('商品名称', max_length=24) 
    price = models.DecimalField('商品价格', max_digits=8, decimal_places=2) 
    channel_type = models.CharField('购买渠道', choices=CHANNEL_TYPE, max_length=8) 
    period = models.IntegerField('有效期', default=365) 
    is_launched = models.BooleanField('是否上架', default=True)
    class Meta: 
        db_table = 'tb_goods' 
        
    def __str__(self):
        return self.title
    

class Orders(Base): 
    PAY_METHOD = (
        (1, "支付宝"), 
    )
    ORDER_STATUS = ( 
        (1, "待支付"),
        (2, "已支付"),
        (3, "已取消"), 
    )
    user = models.ForeignKey('user.User', on_delete=models.PROTECT, verbose_name="下单用户") 
    goods = models.ForeignKey(Goods, on_delete=models.PROTECT)
    order_id = models.CharField('订单号', max_length=24) 
    trade_no = models.CharField('支付宝订单号', max_length=32, null=True) # 28位 
    pay_time = models.DateTimeField('支付时间', null=True) 
    pay_method = models.CharField('支付方式', choices=PAY_METHOD, default=1, max_length=8) 
    status = models.CharField('支付状态', choices=ORDER_STATUS, default=1, max_length=8) 
    total_amount = models.DecimalField(max_digits=10, decimal_places=2, verbose_name="商品总金额")
    class Meta: 
        db_table = 'tb_orders'
        
    def __str__(self):
        return self.order_id

1.2 course/models.py 中添加用户购买课程

class UserCourse(Base): 
    """ 
    用户购买的课程
    """ 
    user = models.ForeignKey('user.User', on_delete=models.CASCADE, related_name='paycourse') 
    course = models.ForeignKey('course.Course', on_delete=models.CASCADE, related_name='payuser') 
    
    class Meta: 
        db_table = 'tb_usercourse'     
    def __str__(self): 
        return "用户:%s, 课程:%s" % (self.user.username, self.course.title)

1.3 user/models.py 添加VIP表并添加用户关联

from django.db import models 
from utils.MyBaseModel import Base 

# 创建Vip表，并和用户进行关联 
class Vip(Base): 
    vip_choise = (
        ('0', '普通用户'),
        ('1', '普通会员'), 
        ('2', '高级会员'), 
    )
    title = models.CharField('vip名称', max_length=16) 
    vip_type = models.CharField('Vip种类',choices=vip_choise ,max_length=4)
    desc = models.CharField('vip描述',max_length=255) 
    period = models.IntegerField('有效期', default=365)
    
    class Meta: 
        db_table = 'tb_vip' 
    def __str__(self):
        return self.title 
    
class User(AbstractUser): 
    phone = models.CharField('手机号',max_length=20) 
    img = models.ImageField(upload_to='user',null=True) 
    nick_name = models.CharField('昵称',max_length=20) 
    address = models.CharField('地址',max_length=255) 
    vip = models.ForeignKey(Vip, on_delete=models.SET_NULL, default=None, null=True)
    vip_expiration = models.DateField('vip到期时间', blank=True, default=None, null=True) 
    
    class Meta:
        db_table = 'tb_user'

2.admin.py中注册

2.1 goods/admin.py中注册

from django.contrib import admin 
from . import models 

# Register your models here. 
admin.site.register(models.Goods) 
admin.site.register(models.GoodsCourse) 
admin.site.register(models.Orders)

2.2 user/admin.py中注册

from django.contrib import admin 
from user import models 

admin.site.register(models.User) 
admin.site.register(models.Vip)