validates!

validates!(*attributes)

Instance Public methods

This method is used to define validations that cannot be corrected by end users and are considered exceptional. So each validator defined with bang or :strict option set to true will always raise ActiveModel::StrictValidationFailed instead of adding error when validation fails. See validates for more information about the validation itself.

class Person
  include ActiveModel::Validations
 
  attr_accessor :name
  validates! :name, presence: true
end
 
person = Person.new
person.name = ''
person.valid?
# => ActiveModel::StrictValidationFailed: Name can't be blank

Links:

https://github.com/rails/rails/blob/0df1f914104073b70f8d8976d0d5adc3b2a1e44e/activemodel/lib/active_model/validations/validates.rb#L143

doc_ruby_on_rails

2025-01-10 15:47:30

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