discourse/db/migrate/20171123200157_add_trust_le...

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class AddTrustLevelLocksToUsers < ActiveRecord::Migration[5.1]
def up
add_column :users, :group_locked_trust_level, :integer, null: true
add_column :users, :manual_locked_trust_level, :integer, null: true
execute <<~SQL
UPDATE users SET manual_locked_trust_level = trust_level WHERE trust_level_locked
SQL
execute <<~SQL
UPDATE users SET group_locked_trust_level = x.tl
FROM users AS u
INNER JOIN (
SELECT gu.user_id, MAX(g.grant_trust_level) AS tl
FROM group_users AS gu
INNER JOIN groups AS g ON gu.group_id = g.id
WHERE g.grant_trust_level IS NOT NULL
GROUP BY gu.user_id
) AS x ON x.user_id = u.id
WHERE users.id = u.id
SQL
end
def down
raise ActiveRecord::IrreversibleMigration
end
end