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
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