# See http://doc.gitlab.com/ce/development/migration_style_guide.html# for more information on how to write migrations for GitLab.classAddPrintingMergeRequestLinkEnabledToProject<ActiveRecord::MigrationincludeGitlab::Database::MigrationHelpersdisable_ddl_transaction!# Set this constant to true if this migration requires downtime.DOWNTIME=falsedefupadd_column_with_default(:projects,:printing_merge_request_link_enabled,:boolean,default: true)enddefdownremove_column(:projects,:printing_merge_request_link_enabled)endend