From de22c202f5e103f433926c763fc3ae179d5976ad Mon Sep 17 00:00:00 2001 From: Eugen Rochko Date: Thu, 30 Mar 2017 15:06:59 +0200 Subject: Add counter caches for a large performance increase on API requests --- db/migrate/20170330021336_add_counter_caches.rb | 14 ++++++++++++++ 1 file changed, 14 insertions(+) create mode 100644 db/migrate/20170330021336_add_counter_caches.rb (limited to 'db/migrate') diff --git a/db/migrate/20170330021336_add_counter_caches.rb b/db/migrate/20170330021336_add_counter_caches.rb new file mode 100644 index 000000000..eb4e54d0a --- /dev/null +++ b/db/migrate/20170330021336_add_counter_caches.rb @@ -0,0 +1,14 @@ +class AddCounterCaches < ActiveRecord::Migration[5.0] + def change + add_column :statuses, :favourites_count, :integer + add_column :statuses, :reblogs_count, :integer + + execute('update statuses set favourites_count = (select count(*) from favourites where favourites.status_id = statuses.id), reblogs_count = (select count(*) from statuses as reblogs where reblogs.reblog_of_id = statuses.id)') + + add_column :accounts, :statuses_count, :integer + add_column :accounts, :followers_count, :integer + add_column :accounts, :following_count, :integer + + execute('update accounts set statuses_count = (select count(*) from statuses where account_id = accounts.id), followers_count = (select count(*) from follows where target_account_id = accounts.id), following_count = (select count(*) from follows where account_id = accounts.id)') + end +end -- cgit