ADD 增加视频帧位计算、字符串判空节点

PERF 重构项目结构

nodes/table.py

@@ -0,0 +1,18 @@
+from sqlalchemy import Column, Integer, DateTime, String, func
+from sqlalchemy.orm import declarative_base
+
+Base = declarative_base()
+
+class Task(Base):
+    __tablename__ = 'task'
+
+    id = Column(Integer, primary_key=True)
+    gmt_create = Column(DateTime(timezone=True), server_default=func.now())
+    gmt_modified = Column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now())
+    prompt_id = Column(String, index=True, nullable=False, unique=True)
+    result = Column(String, nullable=True)
+    job_id = Column(Integer, index=True, nullable=False, unique=True)
+    status = Column(Integer)
+
+    def __repr__(self):
+        return f"{self.id},{self.gmt_create},{self.gmt_modified},{self.prompt_id},{self.result}"