59a59f8869
Major architectural improvement to replace in-memory task storage with database-backed persistence while maintaining backward compatibility. Changes: - Created Task SQLAlchemy model matching database schema - Added Workflow and Execution SQLAlchemy models - Created TaskService for database CRUD operations - Updated UnifiedCoordinator to use database persistence - Modified task APIs to leverage database storage - Added task loading from database on coordinator initialization - Implemented status change persistence during task execution - Enhanced task cleanup with database support - Added comprehensive task statistics from database Benefits: - Tasks persist across application restarts - Better scalability and reliability - Historical task data retention - Comprehensive task filtering and querying - Maintains in-memory cache for performance 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
63 lines
2.1 KiB
Python
63 lines
2.1 KiB
Python
"""
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SQLAlchemy models for workflows and executions
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"""
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from sqlalchemy import Column, String, Text, Integer, Boolean, DateTime, ForeignKey, UUID as SqlUUID
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from sqlalchemy.dialects.postgresql import JSONB
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from sqlalchemy.sql import func
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from sqlalchemy.orm import relationship
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from ..core.database import Base
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import uuid
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class Workflow(Base):
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__tablename__ = "workflows"
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# Primary identification
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id = Column(SqlUUID(as_uuid=True), primary_key=True, index=True, default=uuid.uuid4)
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# Workflow details
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name = Column(String(255), nullable=False)
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description = Column(Text)
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n8n_data = Column(JSONB, nullable=False)
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mcp_tools = Column(JSONB)
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# Relationships
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created_by = Column(SqlUUID(as_uuid=True), ForeignKey("users.id"))
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# Metadata
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version = Column(Integer, default=1)
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active = Column(Boolean, default=True)
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# Timestamps
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created_at = Column(DateTime(timezone=True), server_default=func.now())
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updated_at = Column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now())
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# Relationships
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creator = relationship("User", back_populates="workflows")
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executions = relationship("Execution", back_populates="workflow")
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tasks = relationship("Task", back_populates="workflow")
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class Execution(Base):
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__tablename__ = "executions"
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# Primary identification
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id = Column(SqlUUID(as_uuid=True), primary_key=True, index=True, default=uuid.uuid4)
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# Execution details
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workflow_id = Column(SqlUUID(as_uuid=True), ForeignKey("workflows.id"), nullable=True)
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status = Column(String(50), default='pending')
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input_data = Column(JSONB)
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output_data = Column(JSONB)
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error_message = Column(Text)
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progress = Column(Integer, default=0)
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# Timestamps
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started_at = Column(DateTime(timezone=True), nullable=True)
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completed_at = Column(DateTime(timezone=True), nullable=True)
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created_at = Column(DateTime(timezone=True), server_default=func.now())
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# Relationships
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workflow = relationship("Workflow", back_populates="executions")
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tasks = relationship("Task", back_populates="execution") |