20 lines
985 B
Python
20 lines
985 B
Python
from sqlalchemy import Column, DateTime, String, ForeignKey
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from sqlalchemy.sql import func
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from .base import AutoID, Base
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class ProjectNode(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_nodes"
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workspace_id = Column(String(32), ForeignKey("workspaces.id", ondelete="CASCADE"), index=True)
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# 自引用外键：如果是根目录下的顶级节点，则 parent_id 为 Null
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parent_id = Column(String(32), ForeignKey("project_nodes.id", ondelete="CASCADE"), nullable=True, index=True)
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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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created_at = Column(DateTime(timezone=True), server_default=func.now()) |