Class: Devise::Orm::DataMapper::UniquenessValidator

Inherits:
ActiveModel::EachValidator
  • Object
show all
Defined in:
lib/devise/orm/data_mapper/validations/active_model.rb

Instance Method Summary collapse

Instance Method Details

#validate_each(target, attribute, value) ⇒ Object 



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# File 'lib/devise/orm/data_mapper/validations/active_model.rb', line 23

def validate_each(target, attribute, value)
  resource = ::DataMapper.repository(target.repository.name) { target.model.first(attribute => value) }
  if resource.nil? || (target.saved? && resource.key == target.key)
    return true
  else
    target.errors.add(attribute, :taken)
    return false
  end
end