Class: Volt::UniqueValidator

Inherits:
Object
  • Object
show all
Defined in:
lib/volt/models/validators/unique_validator.rb

Class Method Summary collapse

Class Method Details

.validate(model, old_model, field_name, args) ⇒ Object 



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# File 'lib/volt/models/validators/unique_validator.rb', line 3

def self.validate(model, old_model, field_name, args)
  errors = {}

  if RUBY_PLATFORM != 'opal'
    if args
      value  = model.read_attribute(field_name)

      query = {}
      # Check to see if any other documents have this value.
      query[field_name.to_s] = value
      query['_id'] = {'$ne' => model._id}

      # Check if the value is taken
      # TODO: need a way to handle scope for unique
      if $page.store.send(:"_#{model.path[-2]}").find(query).size > 0
        message = (args.is_a?(Hash) && args[:message]) || "is already taken"

        errors[field_name] = [message]
      end
    end
  end

  errors
end