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refresh_log.py
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51 lines (39 loc) · 1.42 KB
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from datetime import datetime, timedelta
from flask_sqlalchemy import SQLAlchemy
import config
db = SQLAlchemy()
class AutoapiTableRefreshLog(db.Model):
__tablename__ = 'autoapi_table_refresh_log'
id = db.Column(db.Integer, primary_key=True)
complete = db.Column(db.Boolean, nullable=False, default=False)
begun_at = db.Column(db.DateTime, nullable=False, default=datetime.now)
complete_at = db.Column(db.DateTime)
err_msg = db.Column(db.String)
def close(self):
self.complete_at = datetime.now()
self.complete = True
@classmethod
def start(cls):
log_entry = cls()
db.session.add(log_entry)
db.session.commit()
return log_entry.id
@classmethod
def stop_hung(cls):
cutoff_time = datetime.now() - timedelta(
seconds=config.REFRESH_TIMEOUT_SECONDS)
for entry in db.session.query(cls).filter_by(complete=False)\
.filter(cls.begun_at < cutoff_time):
entry.err_msg = 'Ran too long, presumed dead'
entry.close()
db.session.commit()
@classmethod
def refresh_underway(cls):
cls.stop_hung()
return db.session.query(AutoapiTableRefreshLog).filter_by(
complete=False).first()
def stop(id, err_msg=None):
log_entry = db.session.query(AutoapiTableRefreshLog).get(id)
log_entry.close()
log_entry.err_msg = err_msg
db.session.commit()