from django.db import models class XX(models.Model): title = models.CharField(verbose_name="名称", max_length=32) image = models.FileField(verbose_name="头像", upload_to="avatar/") class Admin(models.Model): """ 管理员 """ username = models.CharField(verbose_name="用户名", max_length=32) password = models.CharField(verbose_name="密码", max_length=64) def __str__(self): return self.username class Department(models.Model): """ 部门表 """ title = models.CharField(verbose_name='标题', max_length=32) def __str__(self): return self.title class UserInfo(models.Model): """ 员工表 """ name = models.CharField(verbose_name="姓名", max_length=16) password = models.CharField(verbose_name="密码", max_length=64) age = models.IntegerField(verbose_name="年龄") account = models.DecimalField(verbose_name="账户余额", max_digits=10, decimal_places=2, default=0) # create_time = models.DateTimeField(verbose_name="入职时间") create_time = models.DateField(verbose_name="入职时间") # 无约束 # depart_id = models.BigIntegerField(verbose_name="部门ID") # 1.有约束 # - to,与那张表关联 # - to_field,表中的那一列关联 # 2.django自动 # - 写的depart # - 生成数据列 depart_id # 3.部门表被删除 # ### 3.1 级联删除 # ### 3.2 置空 # depart = models.ForeignKey(to="Department", to_field="id", null=True, blank=True, on_delete=models.SET_NULL) # 在django中做的约束 gender_choices = ( (1, "男"), (2, "女"), ) gender = models.SmallIntegerField(verbose_name="性别", choices=gender_choices) class Movie(models.Model): name = models.CharField(verbose_name="电影名称", max_length=16) depart = models.ForeignKey(verbose_name="电影类别", to="Department", to_field="id", on_delete=models.CASCADE) class PrettyNum(models.Model): """ 靓号表 """ mobile = models.CharField(verbose_name="手机号", max_length=11) # 想要允许为空 null=True, blank=True price = models.IntegerField(verbose_name="价格", default=0) level_choices = ( (1, "1级"), (2, "2级"), (3, "3级"), (4, "4级"), ) level = models.SmallIntegerField(verbose_name="级别", choices=level_choices, default=1) status_choices = ( (1, "已占用"), (2, "未使用") ) status = models.SmallIntegerField(verbose_name="状态", choices=status_choices, default=2) class Task(models.Model): """ 任务 """ level_choices = ( (1, "紧急"), (2, "重要"), (3, "临时"), ) level = models.SmallIntegerField(verbose_name="级别", choices=level_choices, default=1) title = models.CharField(verbose_name="标题", max_length=64) detail = models.TextField(verbose_name="详细信息") # user_id user = models.ForeignKey(verbose_name="负责人", to="Admin", on_delete=models.CASCADE) class Order(models.Model): """ 订单 """ oid = models.CharField(verbose_name="订单号", max_length=64) title = models.CharField(verbose_name="名称", max_length=32) price = models.IntegerField(verbose_name="价格") status_choices = ( (1, "待支付"), (2, "已支付"), ) status = models.SmallIntegerField(verbose_name="状态", choices=status_choices, default=1) # admin_id admin = models.ForeignKey(verbose_name="管理员", to="Admin", on_delete=models.CASCADE) class Boss(models.Model): """ 老板 """ name = models.CharField(verbose_name="姓名", max_length=32) age = models.IntegerField(verbose_name="年龄") img = models.CharField(verbose_name="头像", max_length=128) class City(models.Model): """ 城市 """ name = models.CharField(verbose_name="名称", max_length=32) count = models.IntegerField(verbose_name="人口") # 本质上数据库也是CharField,自动保存数据。 img = models.FileField(verbose_name="Logo", max_length=128, upload_to='city/')