假设我有两个模型,一个Customer用于Payment. 每个月我customer都应该在每个月的 15 号之前付款。构建模型以便轻松获得当月未付款的客户报告的最佳方法是什么?
客户型号:
class CustomerModel(models.Model):
first_name = models.TextField()
last_name = models.TextField()
email = models.EmailField()
支付模式:
class Payment(models.Model):
customer = models.ForeignKey(
Customer,
on_delete=models.SET_NULL,
null=True)
amount = models.FloatField()
date_received = models.DateField(auto_now=False)
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