instance method
before_validation
Ruby on Rails 8.0.4
Since v3.0.20Signature
before_validation(*args, &block)Defines a callback that will get called right before validation.
class Person
include ActiveModel::Validations
include ActiveModel::Validations::Callbacks
attr_accessor :name
validates_length_of :name, maximum: 6
before_validation :remove_whitespaces
private
def remove_whitespaces
name.strip!
end
end
person = Person.new
person.name = ' bob '
person.valid? # => true
person.name # => "bob"
Parameters
-
argsrest -
blockblock
Source
# File activemodel/lib/active_model/validations/callbacks.rb, line 55
def before_validation(*args, &block)
options = args.extract_options!
set_options_for_callback(options)
set_callback(:validation, :before, *args, options, &block)
end
Defined in activemodel/lib/active_model/validations/callbacks.rb line 55
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Defined in ActiveModel::Validations::Callbacks::ClassMethods