instance method `valid?`

Ruby on Rails 6.0.6

Since v2.2.3

Available in: v2.2.3 v2.3.18 v3.0.20 v3.1.12 v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

valid?(context = nil)

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

Parameters

context opt = nil

Source

# File activemodel/lib/active_model/validations.rb, line 334
    def valid?(context = nil)
      current_context, self.validation_context = validation_context, context
      errors.clear
      run_validations!
    ensure
      self.validation_context = current_context
    end

Defined in activemodel/lib/active_model/validations.rb line 334 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveModel::Validations

Signature

Parameters