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# See http://doc.gitlab.com/ce/development/migration_style_guide.html
# for more information on how to write migrations for GitLab.
class PopulateMissingProjectCiCdSettings < ActiveRecord::Migration[4.2]
include Gitlab::Database::MigrationHelpers
DOWNTIME = false
disable_ddl_transaction!
def up
# MySQL does not support online upgrades, thus there can't be any missing
# rows.
return if Gitlab::Database.mysql?
# Projects created after the initial migration but before the code started
# using ProjectCiCdSetting won't have a corresponding row in
# project_ci_cd_settings, so let's fix that.
execute <<~SQL
INSERT INTO project_ci_cd_settings (project_id)
SELECT id
FROM projects
WHERE NOT EXISTS (
SELECT 1
FROM project_ci_cd_settings
WHERE project_ci_cd_settings.project_id = projects.id
)
SQL
end
def down
# There's nothing to revert for this migration.
end
end
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