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# frozen_string_literal: true
class AddXorCheckConstraintForEscalationRules < ActiveRecord::Migration[6.1]
include Gitlab::Database::MigrationHelpers
disable_ddl_transaction!
CONSTRAINT_NAME = 'escalation_rules_one_of_oncall_schedule_or_user'
def up
add_check_constraint :incident_management_escalation_rules, 'num_nonnulls(oncall_schedule_id, user_id) = 1', CONSTRAINT_NAME
end
def down
remove_check_constraint :incident_management_escalation_rules, CONSTRAINT_NAME
end
end
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