Contents

require 'active_support/concern'
require 'active_model/validations'
require 'ripple/translation'
require 'ripple/validations/associated_validator'

module Ripple
  # Raised by <tt>save!</tt> when the document is invalid.  Use the
  # +document+ method to retrieve the document which did not validate.
  #   begin
  #     invalid_document.save!
  #   rescue Ripple::DocumentInvalid => invalid
  #     puts invalid.document.errors
  #   end
  class DocumentInvalid < StandardError
    include Translation
    attr_reader :document
    def initialize(document)
      @document = document
      errors = @document.errors.full_messages.join(", ")
      super(t("document_invalid", :errors => errors))
    end
  end

  # Adds validations to {Ripple::Document} models. Validations are
  # executed before saving the document.
  module Validations
    extend ActiveSupport::Concern
    include ActiveModel::Validations

    module ClassMethods
      # @private
      def property(key, type, options={})
        prop = super
        validates key, prop.validation_options unless prop.validation_options.blank?
      end

      # Instantiates a new document, applies attributes from a block, and saves it
      # Raises Ripple::DocumentInvalid if the record did not save
      def create!(attrs={}, &block)
        obj = create(attrs, &block)
        (raise Ripple::DocumentInvalid.new(obj) if obj.new?) || obj
      end
    end

    module InstanceMethods
      # @private
      def save(options={:validate => true})
        return false if options[:validate] && !valid?
        super()
      end

      # Saves the document and raises {DocumentInvalid} exception if
      # validations fail. 
      def save!
        (raise Ripple::DocumentInvalid.new(self) unless save) || true
      end

      # Sets the passed attributes and saves the document, raising a
      # {DocumentInvalid} exception if the validations fail.
      def update_attributes!(attrs)
        self.attributes = attrs
        save!
      end
    end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
seomoz-ripple-1.0.0.pre	lib/ripple/validations.rb