invalid?

invalid?(context = nil)

Instance Public methods

Performs the opposite of valid?. Returns true if errors were added, false otherwise.

class Person
  include ActiveModel::Validations
 
  attr_accessor :name
  validates_presence_of :name
end
 
person = Person.new
person.name = ''
person.invalid? # => true
person.name = 'david'
person.invalid? # => false

Context can optionally be supplied to define which callbacks to test against (the context is defined on the validations using :on).

class Person
  include ActiveModel::Validations
 
  attr_accessor :name
  validates_presence_of :name, on: :new
end
 
person = Person.new
person.invalid?       # => false
person.invalid?(:new) # => true

Links:

https://github.com/rails/rails/blob/26fb57b58dad6555222bb7270f20d9fb1ccb7534/activemodel/lib/active_model/validations.rb#L351

doc_ruby_on_rails

2025-01-10 15:47:30

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