Module: DataMapper::Validations::ValidatesFormat

Extended by:

Deprecate

Included in:

ClassMethods

Defined in:

lib/dm-validations/validators/format_validator.rb

Overview

class FormatValidator

Instance Method Summary

• #validates_format_of(*fields) ⇒ Object

  Validates that the attribute is in the specified format.

Instance Method Details

#validates_format_of(*fields) ⇒ Object

Validates that the attribute is in the specified format. You may use the :as (or :with, it’s an alias) option to specify the pre-defined format that you want to validate against. You may also specify your own format via a Proc or Regexp passed to the the :as or :with options.

Examples:

Usage

require 'dm-validations'

class Page
  include DataMapper::Resource

  property :email, String
  property :zip_code, String

  validates_format_of :email, :as => :email_address
  validates_format_of :zip_code, :with => /^\d{5}$/

  # a call to valid? will return false unless:
  # email is formatted like an email address
  # and
  # zip_code is a string of 5 digits

Parameters:

• [Boolean] (Hash) —

  a customizable set of options

• [Format, (Hash) —

  a customizable set of options

# File 'lib/dm-validations/validators/format_validator.rb', line 117

def validates_format_of(*fields)
  validators.add(FormatValidator, *fields)
end