48 lines
1.8 KiB
Python
48 lines
1.8 KiB
Python
from django.db import models
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from django.contrib.auth import get_user_model
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User = get_user_model()
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class Invoice(models.Model):
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STATUS_UNPAID = 'unpaid'
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STATUS_PAID = 'paid'
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STATUS_CANCELLED = 'cancelled'
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STATUS_CHOICES = [
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(STATUS_UNPAID, '未支付'),
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(STATUS_PAID, '已支付'),
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(STATUS_CANCELLED, '已取消'),
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]
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user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='invoices')
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period_start = models.DateField()
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period_end = models.DateField()
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amount_plan_total = models.DecimalField(max_digits=12, decimal_places=2, default=0)
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amount_overage_total = models.DecimalField(max_digits=12, decimal_places=2, default=0)
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amount_adjustment = models.DecimalField(max_digits=12, decimal_places=2, default=0)
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amount_total = models.DecimalField(max_digits=12, decimal_places=2, default=0)
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status = models.CharField(max_length=20, choices=STATUS_CHOICES, default=STATUS_UNPAID)
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created_at = models.DateTimeField(auto_now_add=True)
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paid_at = models.DateTimeField(null=True, blank=True)
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class Meta:
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verbose_name = '账单'
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verbose_name_plural = '账单'
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ordering = ['-period_end']
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class InvoiceItem(models.Model):
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invoice = models.ForeignKey(Invoice, related_name='items', on_delete=models.CASCADE)
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domain = models.ForeignKey('domains.Domain', on_delete=models.SET_NULL, null=True, blank=True)
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description = models.CharField(max_length=200)
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quantity = models.DecimalField(max_digits=12, decimal_places=3, default=0) # GB
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unit_price = models.DecimalField(max_digits=12, decimal_places=2, default=0)
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amount = models.DecimalField(max_digits=12, decimal_places=2, default=0)
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class Meta:
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verbose_name = '账单项'
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verbose_name_plural = '账单项'
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# Create your models here.
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