gitlab-org--gitlab-foss/db/migrate/20161031174110_migrate_subscriptions_project_id.rb
2016-11-17 15:10:13 -02:00

44 lines
1.2 KiB
Ruby

class MigrateSubscriptionsProjectId < ActiveRecord::Migration
include Gitlab::Database::MigrationHelpers
DOWNTIME = true
DOWNTIME_REASON = 'Subscriptions will not work as expected until this migration is complete.'
def up
execute <<-EOF.strip_heredoc
UPDATE subscriptions
SET project_id = (
SELECT issues.project_id
FROM issues
WHERE issues.id = subscriptions.subscribable_id
)
WHERE subscriptions.subscribable_type = 'Issue';
EOF
execute <<-EOF.strip_heredoc
UPDATE subscriptions
SET project_id = (
SELECT merge_requests.target_project_id
FROM merge_requests
WHERE merge_requests.id = subscriptions.subscribable_id
)
WHERE subscriptions.subscribable_type = 'MergeRequest';
EOF
execute <<-EOF.strip_heredoc
UPDATE subscriptions
SET project_id = (
SELECT projects.id
FROM labels INNER JOIN projects ON projects.id = labels.project_id
WHERE labels.id = subscriptions.subscribable_id
)
WHERE subscriptions.subscribable_type = 'Label';
EOF
end
def down
execute <<-EOF.strip_heredoc
UPDATE subscriptions SET project_id = NULL;
EOF
end
end