| """Module for finalized material.""" |
|
|
| from __future__ import annotations |
|
|
| from typing import TYPE_CHECKING, ClassVar |
|
|
| from django.db import models |
| from django.utils.translation import gettext_lazy as _ |
|
|
| from .contract import Contract |
|
|
| if TYPE_CHECKING: |
| pass |
|
|
|
|
| class MaterialCategory(models.TextChoices): |
| CONTRACT_ORIGINAL = "contract_original", _("合同正本") |
| SUPPLEMENTARY_AGREEMENT = "supplementary_agreement", _("补充协议") |
| INVOICE = "invoice", _("发票") |
|
|
|
|
| class FinalizedMaterial(models.Model): |
| """归档材料模型，存储上传的 PDF 文件元数据。""" |
|
|
| id: int |
| contract_id: int |
| contract: models.ForeignKey[Contract] = models.ForeignKey( |
| Contract, |
| on_delete=models.CASCADE, |
| related_name="finalized_materials", |
| verbose_name=_("合同"), |
| ) |
| file_path: models.CharField = models.CharField(max_length=500, verbose_name=_("文件路径")) |
| original_filename: models.CharField = models.CharField(max_length=255, verbose_name=_("原始文件名")) |
| category: models.CharField = models.CharField( |
| max_length=32, |
| choices=MaterialCategory.choices, |
| default=MaterialCategory.INVOICE, |
| verbose_name=_("材料分类"), |
| ) |
| uploaded_at: models.DateTimeField = models.DateTimeField(auto_now_add=True, verbose_name=_("上传时间")) |
| remark: models.TextField = models.TextField(blank=True, default="", verbose_name=_("备注")) |
| order: models.PositiveIntegerField = models.PositiveIntegerField(default=0, verbose_name=_("排序")) |
|
|
| class Meta: |
| ordering: ClassVar = ["order", "-uploaded_at"] |
| verbose_name = _("归档材料") |
| verbose_name_plural = _("归档材料") |
| indexes: ClassVar = [ |
| models.Index(fields=["contract", "order", "-uploaded_at"]), |
| ] |
|
|
| def __str__(self) -> str: |
| return f"{self.original_filename} ({self.get_category_display()})" |
|
|
