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b4f2238 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 | """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()})" # type: ignore[attr-defined]
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