创建商品表

3.1 创建用户模型course

python ../manage.py startapp goods  # 创建course模型

3.2 在setting.py中注册goods模型（第一步)

INSTALLED_APPS = [    
    'goods.apps.GoodsConfig', 
] 
# 注：pycharm无法联想，需要把apps文件夹设置为源根

3.3 syl/urls.py添加路由（第二步)

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

3.4 创建 goods/urls.py路由文件（第三步)

from django.urls import path, re_path 
from . import views
urlpatterns = [

]

创建商品表

from django.db import models

# Create your models here.

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


# class Base(models.Model):
#     create_time=models.DateTimeField('创建时间',auto_now_add=True,null=True)
#     update_time=models.DateTimeField('更新时间',auto_now=True,null=True)
#
#     class Meta:
#         abstract=True


class Goods(Base):
    GOOD_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=GOOD_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)
    pay_time=models.DateTimeField('支付时间',null=True)
    pay_method=models.CharField('支付方式',choices=ORDER_STATUS,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



class GoodsCourse(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)

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'

2.1 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)