20 lines
1.1 KiB
Ruby
20 lines
1.1 KiB
Ruby
# frozen_string_literal: true
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class AddCounterCaches < ActiveRecord::Migration[5.0]
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def change
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change_table(:statuses, bulk: true) do |t|
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t.column :favourites_count, :integer, null: false, default: 0
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t.column :reblogs_count, :integer, null: false, default: 0
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end
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change_table(:accounts, bulk: true) do |t|
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t.column :statuses_count, :integer, null: false, default: 0
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t.column :followers_count, :integer, null: false, default: 0
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t.column :following_count, :integer, null: false, default: 0
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end
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end
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end
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# To make the new fields contain correct data:
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# 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);
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# 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);
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