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Improve the performance of the query to get the last template usage.

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By adding the service id, the query performance has improved greatly. It went from 6200ms to 0.04ms.
This should stop the 500s when a template is deleted.
This commit is contained in:
Rebecca Law
2018-07-02 17:17:38 +01:00
parent 3bc9c06c3c
commit db5663e429
3 changed files with 14 additions and 10 deletions
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14
tests/app/dao/notification_dao/test_notification_dao_template_usage.py
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@@ -21,7 +21,7 @@ from tests.app.db import (
def test_last_template_usage_should_get_right_data(sample_notification):
results = dao_get_last_template_usage(sample_notification.template_id, 'sms')
results = dao_get_last_template_usage(sample_notification.template_id, 'sms', sample_notification.service_id)
assert results.template.name == 'Template Name'
assert results.template.template_type == 'sms'
assert results.created_at == sample_notification.created_at
@@ -36,12 +36,12 @@ def test_last_template_usage_should_be_able_to_get_all_template_usage_history_or
):
template = create_template(sample_service, template_type=notification_type)
create_notification(template)
create_notification(template)
create_notification(template)
create_notification(template, created_at=datetime.utcnow() - timedelta(seconds=1))
create_notification(template, created_at=datetime.utcnow() - timedelta(seconds=2))
create_notification(template, created_at=datetime.utcnow() - timedelta(seconds=3))
most_recent = create_notification(template)
results = dao_get_last_template_usage(template.id, notification_type)
results = dao_get_last_template_usage(template.id, notification_type, template.service_id)
assert results.id == most_recent.id
@@ -62,13 +62,13 @@ def test_last_template_usage_should_ignore_test_keys(
created_at=one_minute_ago,
api_key=sample_test_api_key)
results = dao_get_last_template_usage(sample_template.id, 'sms')
results = dao_get_last_template_usage(sample_template.id, 'sms', sample_template.service_id)
assert results.id == team_key.id
def test_last_template_usage_should_be_able_to_get_no_template_usage_history_if_no_notifications_using_template(
sample_template):
results = dao_get_last_template_usage(sample_template.id, 'sms')
results = dao_get_last_template_usage(sample_template.id, 'sms', sample_template.service_id)
assert not results