Contents

class Marble
  # Rails plugin for using Marble as a template handler.
  # 
  # Marble has three output formats: text, JSON, and YAML. The template
  # handler calls `to_s`, `to_json`, and `to_yaml` for each format,
  # respectively.
  # 
  # Marble sets up a builder for you; simply use the `marble` variable to
  # access the builder. To rename the builder to another, possibly shorter
  # variable in order to save keystrokes, put the new variable name as the
  # name of the block parameter:
  # 
  #     marble.hash do |m|
  #       m.free 'toast'
  #     end
  # 
  # Marble loads this module only if it can find `ActionView`.
  class RailsTemplateHandler
    class_attribute :default_format
    self.default_format = Mime::JSON
    
    # Compile the Rails template.
    # 
    # @param template [Class] the Rails template class
    # @return [String] the compiled template
    def call(template)
      compiled = "builder = Marble.new;" +
                 "builder.build { |marble| #{template.source} }."
      
      if template.formats.include?(:yaml)
        compiled += 'to_yaml'
      elsif template.formats.include?(:json)
        compiled += 'to_json'
      else
        compiled += 'to_s'
      end
      
      compiled
    end
  end
end

ActionView::Template.register_template_handler(:marble, Marble::RailsTemplateHandler.new)

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
marble-0.1.0	lib/marble/rails_template_handler.rb