40 lines
1.8 KiB
Python
40 lines
1.8 KiB
Python
from sqlalchemy import Column, DateTime, String, ForeignKey, Integer
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from sqlalchemy.sql import func
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from .base import AutoID, Base
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class ProjectItem(Base, AutoID):
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"""项目与文件夹的树状虚拟文件系统"""
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__tablename__ = "project_items"
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workspace_id = Column(
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String(AutoID.id_length()),
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ForeignKey("workspaces.id", ondelete="CASCADE"),
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index=True,
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)
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# 自引用外键
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# 如果是根目录下的顶级节点，则 parent_id 为 Null
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parent_id = Column(
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String(AutoID.id_length()), # 其实调用的就是自身的 id_length 方法
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ForeignKey("project_items.id", ondelete="CASCADE"),
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nullable=True,
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index=True,
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)
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name = Column(String, nullable=False)
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# 节点类型：'folder' (文件夹) 或 'project' (代表具体文件的项目实体)
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node_type = Column(String, default="project", nullable=False)
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# 如果是 project 节点，可以用这一列来存储其内容或配置快照（如 JSON 文本）
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content = Column(String, nullable=True)
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# --- 富媒体与播放信息 ---
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cover_url = Column(String, nullable=True) # 封面图（可以是图片、GIF 或短视频预览 URL）
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duration = Column(Integer, default=0) # 媒体时长（单位：秒，非视频/GIF 则为 0）
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view_count = Column(Integer, default=0, nullable=False)
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like_count = Column(Integer, default=0, nullable=False, server_default="0")
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favorite_count = Column(Integer, default=0, nullable=False, server_default="0")
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share_count = Column(Integer, default=0, nullable=False, server_default="0")
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created_at = Column(DateTime(timezone=True), server_default=func.now())
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updated_at = Column(DateTime(timezone=True), onupdate=func.now()) |