module Callbacks
Ruby on Rails 4.1.16
Since v3.0.20Active Model Validation Callbacks
Provides an interface for any class to have before_validation and after_validation callbacks.
First, include ActiveModel::Validations::Callbacks from the class you are creating:
class MyModel include ActiveModel::Validations::Callbacks before_validation :do_stuff_before_validation after_validation :do_stuff_after_validation end
Like other before_* callbacks if before_validation returns false then valid? will not be called.
Namespace
Modules
Includes
Extends
Used by
Included by (1)
Methods (inherited)
From ActiveSupport::Callbacks (1)
From ActiveSupport::Concern (2)
From ActiveSupport::DescendantsTracker (7)
- # descendants
- # direct_descendants
- # inherited
- self. clear
- self. descendants
- self. direct_descendants
- self. store_inherited