### Home Classes Methods

### In Files

- lib/ramaze/view/erector.rb

### Methods

- ::call

### Included Modules

- Erector

### Class/Module Index

Quicksearch

- Ramaze
- Ramaze::App
- Ramaze::AppGraph
- Ramaze::Bin
- Ramaze::Bin::Console
- Ramaze::Bin::Create
- Ramaze::Bin::Helper
- Ramaze::Bin::Restart
- Ramaze::Bin::Runner
- Ramaze::Bin::Start
- Ramaze::Bin::Status
- Ramaze::Bin::Stop
- Ramaze::Cache
- Ramaze::Cache::LRU
- Ramaze::Cache::LocalMemCache
- Ramaze::Cache::MemCache
- Ramaze::Cache::Redis
- Ramaze::Cache::Sequel
- Ramaze::Controller
- Ramaze::CoreExtensions
- Ramaze::CoreExtensions::Array
- Ramaze::CoreExtensions::Binding
- Ramaze::CoreExtensions::Kernel
- Ramaze::CoreExtensions::Numeric
- Ramaze::CoreExtensions::Object
- Ramaze::CoreExtensions::Proc
- Ramaze::CoreExtensions::String
- Ramaze::Current
- Ramaze::DefaultController
- Ramaze::Dictionary
- Ramaze::Fiber
- Ramaze::Files
- Ramaze::GemSetup
- Ramaze::Gestalt
- Ramaze::Helper
- Ramaze::Helper::Auth
- Ramaze::Helper::Bench
- Ramaze::Helper::BlueForm
- Ramaze::Helper::BlueForm::Form
- Ramaze::Helper::CSRF
- Ramaze::Helper::Cache
- Ramaze::Helper::Cache::SingletonMethods
- Ramaze::Helper::Disqus
- Ramaze::Helper::Email
- Ramaze::Helper::Erector
- Ramaze::Helper::Flash
- Ramaze::Helper::Formatting
- Ramaze::Helper::Gestalt
- Ramaze::Helper::Gravatar
- Ramaze::Helper::Identity
- Ramaze::Helper::Layout
- Ramaze::Helper::Layout::SingletonMethods
- Ramaze::Helper::Link
- Ramaze::Helper::Localize
- Ramaze::Helper::Localize::Dictionary
- Ramaze::Helper::Localize::Parser
- Ramaze::Helper::Markaby
- Ramaze::Helper::Maruku
- Ramaze::Helper::Paginate
- Ramaze::Helper::Paginate::Paginator
- Ramaze::Helper::Paginate::Paginator::ArrayPager
- Ramaze::Helper::Paginate::Paginator::DataMapperPager
- Ramaze::Helper::Remarkably
- Ramaze::Helper::RequestAccessor
- Ramaze::Helper::SendFile
- Ramaze::Helper::SimpleCaptcha
- Ramaze::Helper::Stack
- Ramaze::Helper::Thread
- Ramaze::Helper::Ultraviolet
- Ramaze::Helper::Upload
- Ramaze::Helper::Upload::ClassMethods
- Ramaze::Helper::Upload::UploadedFile
- Ramaze::Helper::UserHelper
- Ramaze::Helper::UserHelper::Wrapper
- Ramaze::Helper::XHTML
- Ramaze::LRUHash
- Ramaze::Logger
- Ramaze::Logger::Analogger
- Ramaze::Logger::Growl
- Ramaze::Logger::Informer
- Ramaze::Logger::Knotify
- Ramaze::Logger::LogHub
- Ramaze::Logger::Logger
- Ramaze::Logger::RotatingInformer
- Ramaze::Logger::Syslog
- Ramaze::Logger::Xosd
- Ramaze::Logging
- Ramaze::MiddlewareCompiler
- Ramaze::Plugin
- Ramaze::Reloader
- Ramaze::Reloader::Hooks
- Ramaze::Reloader::WatchInotify
- Ramaze::Reloader::WatchStat
- Ramaze::Request
- Ramaze::Response
- Ramaze::SpecLogger
- Ramaze::Struct
- Ramaze::View
- Ramaze::View::Erector
- Ramaze::View::Erubis
- Ramaze::View::Ezamar
- Ramaze::View::Gestalt
- Ramaze::View::Haml
- Ramaze::View::Liquid
- Ramaze::View::Liquid::Tag
- Ramaze::View::Lokar
- Ramaze::View::Mustache
- Ramaze::View::Mustache::RamazeContext
- Ramaze::View::Nagoro
- Ramaze::View::Remarkably
- Ramaze::View::Sass
- Ramaze::View::Slippers
- Ramaze::View::Tagz
- Ramaze::View::Tagz::Methods
- Ramaze::View::Tenjin
- Nagoro
- Nagoro::Pipe
- Nagoro::Pipe::RenderPartial
- Bacon
- Bacon::PrettyOutput
- Erector
- Erector::Widget
- Rack
- Rack::RouteExceptions
- Tenjin
- Tenjin::Template
- BlankSlate
- Controller
- Fiber
- FiberError
- MainController
- Object
- OrderedSet
- Thread

No matching classes.

# Ramaze::View::Erector

Adapter for Erector. Erector is a view engine that works a bit like Markably but offers a much more pleasant way of building your views. By creating classes in plain ruby you can generate layouts and views without having to write a single line of HTML.

Each layout or view is a simple class that matches the filename. A layout named "default.erector" would result in a class with the name "Default". It's very important to know that you should ALWAYS extend Ramaze::View::Erector. Without extending this class you won't be able to use Erector at all.

When working with the Erector adapter there are a few things you'll need to know. First all your views and layouts should be classes as explained earlier on. Each class should have at least a single method named "content". This method is executed by Erector and the HTML it produces will either be stored in the @content instance variable (if it's a view) or sent to the browser if it's a layout. The @content variable can be displayed by calling the rawtext() method and passing the variable as it's parameter.

Using helper methods, such as the render_* methods is also possible although slightly different than you're used to. Due to the way the Erector adapter works it isn't possible to directly call a helper method. As a workaround you can access these methods from the "@controller" instance variable. Don't forget to render the output of these helpers using rawtext(). Feel free to submit any patches if you think you have a better solution so that developers don't have to use the @controller instance variable.

@example

    # This is the code for the layout
    class Default < Erector::Widget
      html do
        head do
          title 'Erector Layout'
        end

        body do
          rawtext @content
        end

      end
    end

    # And here's the view
    class Index < Erector::Widget
      def content
        h2 'This is the view'
      end
    end

    # Render an extra view
    class ExtraView < Erector::Widget
      def content
        rawtext @controller.render_view :some_extra_view
      end
    end

@author Yorick Peterse

### Public Class Methods

call(action, string) click to toggle source

The call method is called whenever a view is loaded. A view can either be a layout or an actual view since they're treated the same way. First the view is loaded, followed by the layout.

@author Yorick Peterse @param [Object] action Object containing a copy of the current Action

    class data.

@param [String] string The content of the currently loaded layout. This

    variable isn't used by the Erector adapter but is required since Ramaze
    expects 2 parameters. Usually this string is used to inline load (or
    evaluate) the content of a view.

@return [String] The generated HTML.

    # File lib/ramaze/view/erector.rb, line 85
    def self.call action, string
      # Return the contents unless a view has been defined
      return string, 'text/html' unless action.view

      # Evaluate the class so we can use it. The content of "string"
      # is a full blown class that should always have a "content" method.
      #eval string, action.binding
      eval string

      # Generate the class name based on the filename.
      # Class names are a CamelCased version of the filename (without the
      # extension).
      klass    = File.basename action.view, '.erector'
      klass    = klass.camel_case
      view_obj = self.const_get(klass)

      # Synchronize the methods of action.instance with the view. These
      # methods can be accessed by calling @controller.METHOD
      action.variables[:controller] = action.instance

      # Now that we have all the data we can start rendering the HTML.
      # Note that we pass the action.variables hash to the new() method. This
      # is done to give the view access to all existing (instance) variables.
      # Syncing them using action.copy_variables didn't seem to do the trick.
      html = view_obj.new(action.variables).to_html

      # All done
      return html, 'text/html'
    end

[Validate]

Generated with the Darkfish Rdoc Generator 2.