Files
aiagent/backend/app/core/database.py
renjianbo 0bbf68d5bb feat: 实现 Agent 定时任务系统 — 按 cron 表达式周期执行 Agent
- 新增 AgentSchedule 模型、CRUD API、调度服务
- 集成 Celery Beat 每分钟检查到期任务并自动触发执行
- 支持手动触发、cron 表达式解析、执行状态跟踪
- 依赖: croniter (cron 表达式解析)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-02 12:14:37 +08:00

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"""
数据库配置
"""
from sqlalchemy import create_engine
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker
from app.core.config import settings
# 创建数据库引擎MySQL
engine = create_engine(
settings.DATABASE_URL,
pool_pre_ping=True,
pool_size=10,
max_overflow=20,
echo=settings.DEBUG # 开发环境显示SQL
)
# 创建会话工厂
# expire_on_commit=Falsecommit 后仍可读取已加载标量,避免 FastAPI 在序列化 ExecutionResponse 时
# 因会话已关闭而再次触发懒加载,从而出现「仅 HTTP 报 DATABASE_ERROR、TestClient 正常」的现象。
SessionLocal = sessionmaker(
autocommit=False, autoflush=False, bind=engine, expire_on_commit=False
)
# 创建基础模型类
Base = declarative_base()
def get_db():
"""获取数据库会话"""
db = SessionLocal()
try:
yield db
finally:
db.close()
def init_db():
"""初始化数据库,创建所有表"""
# 导入所有模型,确保它们被注册
import app.models.user
import app.models.workflow
import app.models.agent
import app.models.execution
import app.models.model_config
import app.models.workflow_template
import app.models.permission
import app.models.alert_rule
import app.models.agent_llm_log
import app.models.agent_vector_memory
import app.models.agent_learning_pattern
import app.models.agent_schedule
import app.models.knowledge_base
Base.metadata.create_all(bind=engine)