dify/api/tasks/workflow_schedule_tasks.py

70 lines
2.6 KiB
Python

import logging
from datetime import UTC, datetime
from zoneinfo import ZoneInfo
from celery import shared_task
from sqlalchemy.orm import sessionmaker
from core.workflow.nodes.trigger_schedule.exc import (
ScheduleExecutionError,
ScheduleNotFoundError,
TenantOwnerNotFoundError,
)
from extensions.ext_database import db
from models.enums import WorkflowRunTriggeredFrom
from models.workflow import WorkflowSchedulePlan
from services.async_workflow_service import AsyncWorkflowService
from services.trigger.schedule_service import ScheduleService
from services.workflow.entities import TriggerData
logger = logging.getLogger(__name__)
@shared_task(queue="schedule_executor")
def run_schedule_trigger(schedule_id: str) -> None:
"""
Execute a scheduled workflow trigger.
Note: No retry logic needed as schedules will run again at next interval.
The execution result is tracked via WorkflowTriggerLog.
Raises:
ScheduleNotFoundError: If schedule doesn't exist
TenantOwnerNotFoundError: If no owner/admin for tenant
ScheduleExecutionError: If workflow trigger fails
"""
session_factory = sessionmaker(bind=db.engine, expire_on_commit=False)
with session_factory() as session:
schedule = session.get(WorkflowSchedulePlan, schedule_id)
if not schedule:
raise ScheduleNotFoundError(f"Schedule {schedule_id} not found")
tenant_owner = ScheduleService.get_tenant_owner(session, schedule.tenant_id)
if not tenant_owner:
raise TenantOwnerNotFoundError(f"No owner or admin found for tenant {schedule.tenant_id}")
try:
current_utc = datetime.now(UTC)
schedule_tz = ZoneInfo(schedule.timezone) if schedule.timezone else UTC
current_in_tz = current_utc.astimezone(schedule_tz)
inputs = {"current_time": current_in_tz.isoformat()}
response = AsyncWorkflowService.trigger_workflow_async(
session=session,
user=tenant_owner,
trigger_data=TriggerData(
app_id=schedule.app_id,
root_node_id=schedule.node_id,
trigger_type=WorkflowRunTriggeredFrom.SCHEDULE,
inputs=inputs,
tenant_id=schedule.tenant_id,
),
)
logger.info("Schedule %s triggered workflow: %s", schedule_id, response.workflow_trigger_log_id)
except Exception as e:
raise ScheduleExecutionError(
f"Failed to trigger workflow for schedule {schedule_id}, app {schedule.app_id}"
) from e