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Added the delete query for notifications

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Rebecca Law
2017-05-23 13:35:15 +01:00
parent 8a08773cae
commit 6536177ac2
1 changed files with 13 additions and 3 deletions
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16
app/commands.py
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@@ -71,11 +71,21 @@ class CustomDbScript(Command):
def update_notification_international_flag(self): def update_notification_international_flag(self):
# 250,000 rows takes 30 seconds to update. # 250,000 rows takes 30 seconds to update.
subq = "select id from notification_history where international is null limit 250000" subq = "select id from notifications where international is null limit 250000"
update = "update notification_history set international = False where id in ({})".format(subq) update = "update notifications set international = False where id in ({})".format(subq)
result = db.session.execute(subq).fetchall() result = db.session.execute(subq).fetchall()
while len(result) > 0: while len(result) > 0:
db.session.execute(update) db.session.execute(update)
print('commit 10000 updates at {}'.format(datetime.utcnow())) print('commit 250000 updates at {}'.format(datetime.utcnow()))
db.session.commit() db.session.commit()
result = db.session.execute(subq).fetchall() result = db.session.execute(subq).fetchall()
# Now update notification_history
subq_history = "select id from notification_history where international is null limit 250000"
update_history = "update notification_history set international = False where id in ({})".format(subq)
result_history = db.session.execute(subq_history).fetchall()
while len(result_history) > 0:
db.session.execute(update_history)
print('commit 250000 updates at {}'.format(datetime.utcnow()))
db.session.commit()
result_history = db.session.execute(subq_history).fetchall()