天天生鲜Django项目（四）

37、在后台添加数据

为了显示方便，为每一个模型类添加__str__方法，否则后台只显示XXX_Object(n)不好看：

# goods/models.py

from django.db import models
from db.base_model import BaseModel
from tinymce.models import HTMLField

class GoodsType(BaseModel):
    '''商品类型模型类'''
    name = models.CharField(max_length=20, verbose_name='种类名称')
    logo = models.CharField(max_length=20, verbose_name='标识')
    image = models.ImageField(upload_to='type', verbose_name='商品类型图片')

    class Meta:
        db_table = 'df_goods_type'
        verbose_name = '商品种类'
        verbose_name_plural = verbose_name

    def __str__(self):
        return self.name


class GoodsSKU(BaseModel):
    '''商品SKU模型类'''
    status_choices = (
        (0, '下线'),
        (1, '上线'),
    )
    type = models.ForeignKey('GoodsType', verbose_name='商品种类', on_delete=models.CASCADE)
    goods = models.ForeignKey('Goods', verbose_name='商品SPU', on_delete=models.CASCADE)
    name = models.CharField(max_length=20, verbose_name=