| """Module for payment.""" |
|
|
| from __future__ import annotations |
|
|
| from typing import ClassVar |
|
|
| from django.db import models |
| from django.utils import timezone |
| from django.utils.translation import gettext_lazy as _ |
|
|
| from .contract import Contract |
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|
|
|
| class InvoiceStatus(models.TextChoices): |
| UNINVOICED = "UNINVOICED", _("未开票") |
| INVOICED_PARTIAL = "INVOICED_PARTIAL", _("部分开票") |
| INVOICED_FULL = "INVOICED_FULL", _("已开票") |
|
|
|
|
| class ContractPayment(models.Model): |
| id: int |
| contract_id: int |
| contract = models.ForeignKey(Contract, on_delete=models.CASCADE, related_name="payments", verbose_name=_("合同")) |
| amount = models.DecimalField(max_digits=14, decimal_places=2, verbose_name=_("收款金额")) |
| received_at = models.DateField(default=timezone.localdate, verbose_name=_("收款日期")) |
| invoice_status = models.CharField( |
| max_length=32, choices=InvoiceStatus.choices, default=InvoiceStatus.UNINVOICED, verbose_name=_("开票状态") |
| ) |
| invoiced_amount = models.DecimalField(max_digits=14, decimal_places=2, default=0, verbose_name=_("已开票金额")) |
| note = models.CharField(max_length=255, blank=True, null=True, verbose_name=_("备注")) |
| created_at = models.DateTimeField(auto_now_add=True, verbose_name=_("创建时间")) |
| updated_at = models.DateTimeField(auto_now=True, verbose_name=_("更新时间")) |
|
|
| class Meta: |
| verbose_name = _("合同收款") |
| verbose_name_plural = _("合同收款") |
| indexes: ClassVar = [ |
| models.Index(fields=["contract", "received_at"]), |
| models.Index(fields=["invoice_status"]), |
| ] |
|
|
| def __str__(self) -> str: |
| return f"{self.contract_id}-{self.amount}" |
|
|
