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# frozen_string_literal: true
class DeleteExperimentsForeignKeys < Gitlab::Database::Migration[2.0]
disable_ddl_transaction!
def up
with_lock_retries do
remove_foreign_key_if_exists :experiment_subjects, :users, name: 'fk_dfc3e211d4'
end
with_lock_retries do
remove_foreign_key_if_exists :experiment_subjects, :experiments, name: 'fk_rails_ede5754774'
end
with_lock_retries do
remove_foreign_key_if_exists :experiment_subjects, :projects, name: 'fk_ccc28f8ceb'
end
with_lock_retries do
remove_foreign_key_if_exists :experiment_subjects, :namespaces, name: 'fk_842649f2f5'
end
end
def down
add_concurrent_foreign_key :experiment_subjects,
:users, column: :user_id, name: 'fk_dfc3e211d4', on_delete: :cascade
add_concurrent_foreign_key :experiment_subjects,
:experiments, column: :experiment_id, name: 'fk_rails_ede5754774', on_delete: :cascade
add_concurrent_foreign_key :experiment_subjects,
:projects, column: :project_id, name: 'fk_ccc28f8ceb', on_delete: :cascade
add_concurrent_foreign_key :experiment_subjects,
:namespaces, column: :namespace_id, name: 'fk_842649f2f5', on_delete: :cascade
end
end
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