Rapscallion

Ruby on Rails client side validations

//= require rapscallion/validations

$(selector).rapscallion();

• Change class of error message div
  error_message_container_class: "error_messages"

• Set a class on field with error
  field_with_error_class: 'has_error'

• Set a class on field with success
  field_valid_class: 'is_valid'

• Container for input – used to add and remove error messages
  field_container: 'div.input'

• Event that triggers validation
  trigger: 'blur'

eg $('.rapscallion').rapscallion({error_message_container_class: 'errors', field_container: '.field'})

gem 'rapscallion'

.input
  = f.input :username, input_html: {class: 'rapscallion'}

= simple_form_for @thing, html: {data: {existing_record: @thing.id}} do |f|

class User < ActiveRecord::Base
	validate :username, presence: true
end