class RuboCop::Cop::Rails::ReversibleMigrationMethodDefinition
This cop checks whether the migration implements either a `change` method or both an `up` and a `down` method.
@example
# bad class SomeMigration < ActiveRecord::Migration[6.0] def up # up migration end # <----- missing down method end class SomeMigration < ActiveRecord::Migration[6.0] # <----- missing up method def down # down migration end end # good class SomeMigration < ActiveRecord::Migration[6.0] def change # reversible migration end end # good class SomeMigration < ActiveRecord::Migration[6.0] def up # up migration end def down # down migration end end
Constants
- MSG
Public Instance Methods
on_class(node)
click to toggle source
# File lib/rubocop/cop/rails/reversible_migration_method_definition.rb, line 67 def on_class(node) return if change_method?(node) || up_and_down_methods?(node) add_offense(node) end