Module: DataMapper::Validations::ValidatesConfirmation

Extended by:
Deprecate
Included in:
ClassMethods
Defined in:
lib/dm-validations/validators/confirmation_validator.rb

Overview

class ConfirmationValidator

Instance Method Summary collapse

Instance Method Details

#validates_confirmation_of(*fields) ⇒ Object

Validates that the given attribute is confirmed by another attribute. A common use case scenario is when you require a user to confirm their password, for which you use both password and password_confirmation attributes.

Examples:

Usage
require 'dm-validations'

class Page
  include DataMapper::Resource

  property :password, String
  property :email, String
  attr_accessor :password_confirmation
  attr_accessor :email_repeated

  validates_confirmation_of :password
  validates_confirmation_of :email, :confirm => :email_repeated

  # a call to valid? will return false unless:
  # password == password_confirmation
  # and
  # email == email_repeated

Parameters:

  • :allow_nil<Boolean> (Hash) —

    a customizable set of options

  • :allow_blank<Boolean> (Hash) —

    a customizable set of options

  • :confirm<Symbol> (Hash) —

    a customizable set of options



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# File 'lib/dm-validations/validators/confirmation_validator.rb', line 76

def validates_confirmation_of(*fields)
  opts = opts_from_validator_args(fields)
  add_validator_to_context(opts, fields, DataMapper::Validations::ConfirmationValidator)
end