38 lines
1.9 KiB
Python
38 lines
1.9 KiB
Python
|
|
from typing import Optional, TYPE_CHECKING
|
|
from sqlmodel import Field, Relationship, UniqueConstraint, CheckConstraint, Index
|
|
from .base import TableBase
|
|
from datetime import datetime
|
|
|
|
if TYPE_CHECKING:
|
|
from .user import User
|
|
from .folder import Folder
|
|
from .policy import Policy
|
|
from .source_link import SourceLink
|
|
|
|
class File(TableBase, table=True):
|
|
__tablename__ = 'files'
|
|
__table_args__ = (
|
|
UniqueConstraint("folder_id", "name", name="uq_file_folder_name_active"),
|
|
CheckConstraint("name NOT LIKE '%/%' AND name NOT LIKE '%\\%'", name="ck_file_name_no_slash"),
|
|
Index("ix_file_user_updated", "user_id", "updated_at"),
|
|
Index("ix_file_folder_updated", "folder_id", "updated_at"),
|
|
Index("ix_file_user_size", "user_id", "size"),
|
|
)
|
|
|
|
name: str = Field(max_length=255, description="文件名")
|
|
source_name: Optional[str] = Field(default=None, description="源文件名")
|
|
size: int = Field(default=0, sa_column_kwargs={"server_default": "0"}, description="文件大小（字节）")
|
|
upload_session_id: Optional[str] = Field(default=None, max_length=255, unique=True, index=True, description="分块上传会话ID")
|
|
file_metadata: Optional[str] = Field(default=None, description="文件元数据 (JSON格式)") # 后续可以考虑模型继承？
|
|
|
|
# 外键
|
|
user_id: int = Field(foreign_key="users.id", index=True, description="所属用户ID")
|
|
folder_id: int = Field(foreign_key="folders.id", index=True, description="所在目录ID")
|
|
policy_id: int = Field(foreign_key="policies.id", index=True, description="所属存储策略ID")
|
|
|
|
# 关系
|
|
user: list["User"] = Relationship(back_populates="files")
|
|
folder: list["Folder"] = Relationship(back_populates="files")
|
|
policy: list["Policy"] = Relationship(back_populates="files")
|
|
source_links: list["SourceLink"] = Relationship(back_populates="file") |