第一次提交

backend/app/models/workflow_version.py

@@ -0,0 +1,32 @@
+"""
+工作流版本模型
+"""
+from sqlalchemy import Column, String, Text, Integer, DateTime, JSON, ForeignKey, func
+from sqlalchemy.dialects.mysql import CHAR
+from sqlalchemy.orm import relationship
+from app.core.database import Base
+import uuid
+
+
+class WorkflowVersion(Base):
+    """工作流版本表"""
+    __tablename__ = "workflow_versions"
+
+    id = Column(CHAR(36), primary_key=True, default=lambda: str(uuid.uuid4()), comment="版本ID")
+    workflow_id = Column(CHAR(36), ForeignKey("workflows.id"), nullable=False, comment="工作流ID")
+    version = Column(Integer, nullable=False, comment="版本号")
+    name = Column(String(100), nullable=False, comment="工作流名称")
+    description = Column(Text, comment="描述")
+    nodes = Column(JSON, nullable=False, comment="节点配置")
+    edges = Column(JSON, nullable=False, comment="边配置")
+    status = Column(String(20), default="draft", comment="状态: draft/published/running/stopped")
+    created_by = Column(CHAR(36), ForeignKey("users.id"), comment="创建者ID")
+    created_at = Column(DateTime, default=func.now(), comment="创建时间")
+    comment = Column(Text, comment="版本备注")
+
+    # 关系
+    workflow = relationship("Workflow", backref="versions")
+    creator = relationship("User", foreign_keys=[created_by])
+
+    def __repr__(self):
+        return f"<WorkflowVersion(id={self.id}, workflow_id={self.workflow_id}, version={self.version})>"