“用户操作的model设计”的版本间的差异

2020年6月23日 (二) 04:02的版本

导入必要的模块

导入模块：系统模块，用户模型 和商品模型

from datetime import datetime

from django.db import models
from django.contrib.auth import get_user_model

from goods.models import Goods
# Create your models here.
User = get_user_model()

用户收藏表UserFav

class UserFav(models.Model):
    """
    用户收藏
    """
    user = models.ForeignKey(User, verbose_name="用户")
    goods = models.ForeignKey(Goods, verbose_name="商品", help_text="商品id")
    add_time = models.DateTimeField(default=datetime.now, verbose_name=u"添加时间")

    class Meta:
        verbose_name = '用户收藏'
        verbose_name_plural = verbose_name
        unique_together = ("user", "goods")

    def __str__(self):
        return self.user.username

用户留言表UserLeavingMessage

class UserLeavingMessage(models.Model):
    """
    用户留言
    """
    MESSAGE_CHOICES = (
        (1, "留言"),
        (2, "投诉"),
        (3, "询问"),
        (4, "售后"),
        (5, "求购")
    )
    user = models.ForeignKey(User, verbose_name="用户")
    message_type = models.IntegerField(default=1, choices=MESSAGE_CHOICES, verbose_name="留言类型",
                                      help_text=u"留言类型: 1(留言),2(投诉),3(询问),4(售后),5(求购)")
    subject = models.CharField(max_length=100, default="", verbose_name="主题")
    message = models.TextField(default="", verbose_name="留言内容", help_text="留言内容")
    file = models.FileField(upload_to="message/images/", verbose_name="上传的文件", help_text="上传的文件")
    add_time = models.DateTimeField(default=datetime.now, verbose_name="添加时间")

    class Meta:
        verbose_name = "用户留言"
        verbose_name_plural = verbose_name

    def __str__(self):
        return self.subject

unique_together: 联合唯一,意思为在这个表中，每一行的user、goods字段必须唯一，不能重复

具体可见Django中unique together使用中的讲解。

用户收获地址表UserAddress

class UserAddress(models.Model):
    """
    用户收货地址
    """
    user = models.ForeignKey(User, verbose_name="用户" )
    province = models.CharField(max_length=100, default="", verbose_name="省份")
    city = models.CharField(max_length=100, default="", verbose_name="城市")
    district = models.CharField(max_length=100, default="", verbose_name="区域")
    address = models.CharField(max_length=100, default="", verbose_name="详细地址")
    signer_name = models.CharField(max_length=100, default="", verbose_name="签收人")
    signer_mobile = models.CharField(max_length=11, default="", verbose_name="电话")
    add_time = models.DateTimeField(default=datetime.now, verbose_name="添加时间")

    class Meta:
        verbose_name = "收货地址"
        verbose_name_plural = verbose_name

    def __str__(self):
        return self.address

参考文档：[1] https://blog.csdn.net/big_white_py/article/details/102980991