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Add counter caches for a large performance increase on API requests

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Eugen Rochko
2017-03-30 04:47:04 +02:00
parent bb7006bda1
commit 35933167c0
13 changed files with 41 additions and 22 deletions
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14
db/migrate/20170330021336_add_counter_caches.rb Normal file
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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