valid?

valid?(context = nil)

Instance Public methods

Runs all the specified validations and returns true if no errors were added otherwise false.

class Person
  include ActiveModel::Validations

  attr_accessor :name
  validates_presence_of :name
end

person = Person.new
person.name = ''
person.valid? # => false
person.name = 'david'
person.valid? # => true

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.valid?       # => true
person.valid?(:new) # => false

Links:

https://github.com/rails/rails/blob/26fb57b58dad6555222bb7270f20d9fb1ccb7534/activemodel/lib/active_model/validations.rb#L314

doc_ruby_on_rails

2015-06-20 00:00:00

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