Class: Railsdav::Renderer::ResponseTypeSelector

Inherits:
Object
  • Object
show all
Defined in:
lib/railsdav/renderer/response_type_selector.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(controller, request_format) ⇒ ResponseTypeSelector

Returns a new instance of ResponseTypeSelector.



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# File 'lib/railsdav/renderer/response_type_selector.rb', line 8

def initialize(controller, request_format)
  @controller, @request_format = controller, request_format
  @subresources = []

  # TODO: somehow allow passing more options to current resource
  @resource_options = {:format => @request_format.to_sym}
end

Instance Attribute Details

#resource_options ⇒ Object (readonly)

Returns the value of attribute resource_options.



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# File 'lib/railsdav/renderer/response_type_selector.rb', line 6

def resource_options
  @resource_options
end

#subresources ⇒ Object (readonly)

Returns the value of attribute subresources.



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# File 'lib/railsdav/renderer/response_type_selector.rb', line 6

def subresources
  @subresources
end

Instance Method Details

#format(name, options) ⇒ Object 



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# File 'lib/railsdav/renderer/response_type_selector.rb', line 16

def format(name, options)
  if Mime::Type.lookup_by_extension(name.to_s)
    if @request_format.to_sym == name
      # TODO: somehow get the attributes (size, updated-at, ...) from the actual Mime responder block here
      @resource_options.merge! options
    end
  else
    raise UnknownMimeTypeExtension, "#{name} is not a valid MIME type file extension."
  end
end

#subresource(*subresources) ⇒ Object

loop over all urls marked as subresources in webdav responder block and add them with all their acceptable mime types



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# File 'lib/railsdav/renderer/response_type_selector.rb', line 29

def subresource(*subresources)
  return unless @request_format == :collection

  options = subresources.extract_options!
  subresources.each do |resource_url|
    relative_resource_url = resource_url.sub %r(^#{ActionController::Base.relative_url_root}), '' # HACK
    route = Rails.application.routes.recognize_path(relative_resource_url)

    if meta = Renderer.webdav_metadata_for_url(route)
      # show the resource as a collection unless disabled
      if meta[:collection]
        @subresources << Renderer::ResourceDescriptor.new(resource_url, options.merge(:format => :collection))
      elsif meta[:accept].blank?
        # show the resource without .:format suffix, but not as a collection
        @subresources << Renderer::ResourceDescriptor.new(resource_url, options)
      end

      # show the resource with all the specified format suffixes
      if meta[:accept]
        [meta[:accept]].flatten.each do |type_name|
          mime_type = Mime::Type.lookup_by_extension(type_name)
          subresource_url = @controller.url_for(route.merge(:format => type_name))
          @subresources << Renderer::ResourceDescriptor.new(subresource_url, options.merge(:format => mime_type))
        end
      end
    else
      raise MissingWebDAVMetadata, "no WebDAV metadata found for #{resource_url}, please specify it using #enable_webdav_for"
    end
  end

  @resource_options[:size] = @subresources.size
end