52 lines
2.2 KiB
Python
52 lines
2.2 KiB
Python
from sqlalchemy import Column, String, TIMESTAMP, Text
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from sqlalchemy.orm import declarative_base
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from sqlalchemy.sql import func
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Base = declarative_base()
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class BaseEntity(Base):
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"""
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Common base entity with audit fields.
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Subclasses may set `__ignore_data_scope__ = True` to opt-out of data-scope filtering.
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"""
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__abstract__ = True
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created_at = Column(TIMESTAMP, server_default=func.current_timestamp(), comment="创建时间")
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updated_at = Column(TIMESTAMP, server_default=func.current_timestamp(), onupdate=func.current_timestamp(),
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comment="更新时间")
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created_by = Column(String(255), nullable=True, comment="创建者")
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updated_by = Column(String(255), nullable=True, comment="更新者")
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# default: do enforce data scope unless subclass sets this to True
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__ignore_data_scope__ = False
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class LineageNode(Base):
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"""数据血缘：节点表（实体对象）"""
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__tablename__ = "t_lineage_node"
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id = Column(String(36), primary_key=True, comment="节点ID")
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graph_id = Column(String(36), nullable=True, comment="图ID")
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node_type = Column(String(64), nullable=False, comment="节点类型")
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name = Column(String(256), nullable=False, comment="节点名称")
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description = Column(Text, nullable=True, comment="节点描述")
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node_metadata = Column(Text, nullable=True, comment="节点扩展信息（JSON）")
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class LineageEdge(Base):
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"""数据血缘：边表（处理流程）"""
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__tablename__ = "t_lineage_edge"
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id = Column(String(36), primary_key=True, comment="边ID")
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graph_id = Column(String(36), nullable=True, comment="图ID")
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process_id = Column(String(36), nullable=True, comment="处理流程ID")
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edge_type = Column(String(64), nullable=False, comment="边类型")
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name = Column(String(256), nullable=True, comment="边名称")
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description = Column(Text, nullable=True, comment="边描述")
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edge_metadata = Column(Text, nullable=True, comment="边扩展信息（JSON）")
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from_node_id = Column(String(36), nullable=False, comment="源节点ID")
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to_node_id = Column(String(36), nullable=False, comment="目标节点ID")
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