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Don't spam database with opening and closing when getting tags for many channels

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This commit is contained in:
James Taylor 2019-06-08 02:35:21 -07:00
parent c8be729e6b
commit f5c76462d7
1 changed files with 15 additions and 15 deletions
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8
youtube/subscriptions.py
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@ -125,9 +125,7 @@ def _remove_tags(channel_ids, tags):
def _get_tags(channel_id):
with open_database() as connection:
with connection as cursor:
def _get_tags(cursor, channel_id):
return [row[0] for row in cursor.execute('''SELECT tag
FROM tag_associations
WHERE sql_channel_id = (
@ -253,12 +251,14 @@ sub_list_item_template = Template('''
def get_subscription_manager_page(env, start_response):
sub_list_html = ''
with open_database() as connection:
with connection as cursor:
for channel_name, channel_id in _get_subscribed_channels():
sub_list_html += sub_list_item_template.substitute(
channel_url = util.URL_ORIGIN + '/channel/' + channel_id,
channel_name = html.escape(channel_name),
channel_id = channel_id,
tags = ', '.join(_get_tags(channel_id)),
tags = ', '.join(_get_tags(cursor, channel_id)),
)