gitlab-org--gitlab-foss/db/migrate/20170524161101_add_protected_to_ci_variables.rb

class AddProtectedToCiVariables < ActiveRecord::Migration[4.2]
  include Gitlab::Database::MigrationHelpers

  DOWNTIME = false

  disable_ddl_transaction!

  def up
    add_column_with_default(:ci_variables, :protected, :boolean, default: false)
  end

  def down
    remove_column(:ci_variables, :protected)
  end
end
Add version 4.2 to all existing migrations DB schema generated by a migration may look different in rails 4 and 5 (because rails 5 may use different default values). For this reason it's important to explicitly set for which rails version a migration was written for. See https://stackoverflow.com/questions/35929869/activerecordmigration-deprecation-warning-asks-for-rails-version-but-im-no/35930912#35930912 2018-11-13 02:27:31 -05:00			`class AddProtectedToCiVariables < ActiveRecord::Migration[4.2]`
Backend implementation for protected variables 2017-05-24 12:18:05 -04:00			`include Gitlab::Database::MigrationHelpers`

			`DOWNTIME = false`

			`disable_ddl_transaction!`

			`def up`
			`add_column_with_default(:ci_variables, :protected, :boolean, default: false)`
			`end`

			`def down`
			`remove_column(:ci_variables, :protected)`
			`end`
			`end`