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Do NOT try to update the new fields from the migration. Takes too long on a live DB 

Needs to be a separate task with no locking
shrike
Eugen Rochko 2017-03-30 15:50:34 +02:00
parent de22c202f5
commit 87513b31e0
1 changed files with 5 additions and 10 deletions
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15
db/migrate/20170330021336_add_counter_caches.rb
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@ -1,14 +1,9 @@
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)')
add_column :statuses, :favourites_count, :integer
add_column :statuses, :reblogs_count, :integer
add_column :accounts, :statuses_count, :integer
add_column :accounts, :followers_count, :integer
add_column :accounts, :following_count, :integer
end
end