新建

model/relation_model.py

@@ -0,0 +1,19 @@
+from datetime import datetime
+
+from sqlalchemy import Integer, Column, DateTime, String
+
+from util.database import Base
+
+
+class Relation(Base):
+    """对应 Excel Sheet：关联关系表。"""
+
+    __tablename__ = "wl_relation"
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    source_id = Column(String(50))
+    destination_id = Column(Integer)
+    relation_type = Column(String(50))
+    created_at = Column(DateTime)
+    updated_at = Column(DateTime)
+    is_deleted = Column(default=False, nullable=False)