Class: ActiveModelValidators::UrlValidator

Inherits:
ActiveModel::EachValidator
  • Object
show all
Defined in:
lib/active_model_validators/url_validator.rb

Overview

URL validator

Constant Summary collapse

DEFAULT_PROTOCOLS =

Default protocols used for validation if no custom protocols provided

DEFAULT_PROTOCOLS = [::URI::HTTP, ::URI::HTTPS]

[::URI::HTTP, ::URI::HTTPS].freeze

Instance Method Summary collapse

Instance Method Details

#validate_each(record, attribute, value) ⇒ Object

Adds error if there is invalid URL address.

By default it works with http and https.

It can be easily extended with protocols param

  • record - ActiveRecord model

  • attr - model attribute to store an URL

  • value - value, supposed to be a valid URL-adress

Example

class MyModel < ActiveRecord::Base
  # default usage
  validates :my_url, :'active_model_validators/url' => true
end

class MyModel < ActiveRecord::Base
  # with custom URL protocols
  validates :my_url, :'active_model_validators/url' => { protocols: [URI::HTTP, URI::HTTPS, URI::FTP] }
end

valid_url = 'https://www.valid.com'
my_model_instance = MyModel.create(my_url: valid_url)
my_model_instance.valid? # => true
my_model_instance.my_attribute = 'invalid_url'
my_model_instance.valid? # => false



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# File 'lib/active_model_validators/url_validator.rb', line 38

def validate_each(record, attribute, value)
  record.errors.add(attribute, error_message) unless url_valid?(value)
end