diff --git a/.gitignore b/.gitignore
index 1dfe31e..e55a421 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,7 +1,10 @@
-.bundle/
-log/*.log
-pkg/
-test/dummy/db/*.sqlite3
-test/dummy/log/*.log
-test/dummy/tmp/
-test/dummy/.sass-cache
+## General
+log
+doc
+rdoc
+
+## Bundler
+.bundle
+pkg
+Gemfile.lock
+
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..7e43728
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,14 @@
+# CHANGELOG
+
+## 0.1.2
+  * Add RablRails#render method (see README or source code)
+  * Fix fail when JSON engine is not found. Now fallback to MultiJson.default_adapter
+  * Warning message printed on logger when JSON engine fail to load
+
+## 0.1.1
+
+  * Add CHANGELOG
+  * Remove unnused test in loop
+  * Speed up rendering by not double copying variable from context
+  * Rename private variable to avoid name conflict
+  * Remove sqlite3 development dependency
\ No newline at end of file
diff --git a/Gemfile b/Gemfile
index 577d5f7..46ed377 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,18 +1,9 @@
 source "http://rubygems.org"
 
-# Declare your gem's dependencies in rabl-rails.gemspec.
-# Bundler will treat runtime dependencies like base dependencies, and
-# development dependencies will be added by default to the :development group.
 gemspec
 
-# jquery-rails is used by the dummy application
+gem 'yajl-ruby'
 
-gem 'rspec-mocks'
-
-# Declare any dependencies that are still in development here instead of in
-# your gemspec. These might include edge Rails or gems from your path or
-# Git. Remember to move these dependencies to your gemspec before releasing
-# your gem to rubygems.org.
-
-# To use debugger
-# gem 'ruby-debug19', :require => 'ruby-debug'
+group :test do
+  gem 'rspec-mocks'
+end
diff --git a/Gemfile.lock b/Gemfile.lock
deleted file mode 100644
index a07074c..0000000
--- a/Gemfile.lock
+++ /dev/null
@@ -1,67 +0,0 @@
-PATH
-  remote: .
-  specs:
-    rabl-rails (0.1.0)
-      activesupport (~> 3.2.1)
-
-GEM
-  remote: http://rubygems.org/
-  specs:
-    actionpack (3.2.1)
-      activemodel (= 3.2.1)
-      activesupport (= 3.2.1)
-      builder (~> 3.0.0)
-      erubis (~> 2.7.0)
-      journey (~> 1.0.1)
-      rack (~> 1.4.0)
-      rack-cache (~> 1.1)
-      rack-test (~> 0.6.1)
-      sprockets (~> 2.1.2)
-    activemodel (3.2.1)
-      activesupport (= 3.2.1)
-      builder (~> 3.0.0)
-    activesupport (3.2.1)
-      i18n (~> 0.6)
-      multi_json (~> 1.0)
-    builder (3.0.0)
-    erubis (2.7.0)
-    hike (1.2.1)
-    i18n (0.6.0)
-    journey (1.0.3)
-    json (1.6.5)
-    multi_json (1.1.0)
-    rack (1.4.1)
-    rack-cache (1.1)
-      rack (>= 0.4)
-    rack-ssl (1.3.2)
-      rack
-    rack-test (0.6.1)
-      rack (>= 1.0)
-    railties (3.2.1)
-      actionpack (= 3.2.1)
-      activesupport (= 3.2.1)
-      rack-ssl (~> 1.3.2)
-      rake (>= 0.8.7)
-      rdoc (~> 3.4)
-      thor (~> 0.14.6)
-    rake (0.9.2.2)
-    rdoc (3.12)
-      json (~> 1.4)
-    rspec-mocks (2.8.0)
-    sprockets (2.1.2)
-      hike (~> 1.2)
-      rack (~> 1.0)
-      tilt (~> 1.1, != 1.3.0)
-    sqlite3 (1.3.5)
-    thor (0.14.6)
-    tilt (1.3.3)
-
-PLATFORMS
-  ruby
-
-DEPENDENCIES
-  actionpack (~> 3.2.1)
-  rabl-rails!
-  railties (~> 3.2.1)
-  rspec-mocks
-  sqlite3
diff --git a/MIT-LICENSE b/MIT-LICENSE
index 406f17b..98f382c 100644
--- a/MIT-LICENSE
+++ b/MIT-LICENSE
@@ -1,4 +1,4 @@
-Copyright 2012 YOURNAME
+Copyright 2012 Christopher Cocchi-Perrier
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the
diff --git a/README.md b/README.md
index 594c214..1df7dda 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ RABL (Ruby API Builder Language) is a ruby templating system for rendering resou
 
 RABL-rails only target Rails 3+ application because Rails 2 applications are becoming less and less present and will be obsolete with Rails 4. So let's look to the future !
 
-So now you ask why used `rabl-rails` if `rabl` already exists and supports Rails. Rabl-rails is *faster* and uses * less memory* than standard rabl gem while letting you access same features. Of course, there are some slight changes to do on your templates to get this gem to work but it should't take you more than 5 minutes.
+So now you ask why used `rabl-rails` if `rabl` already exists and supports Rails. Rabl-rails is **faster** and uses **less memory** than standard rabl gem while letting you access same features. Of course, there are some slight changes to do on your templates to get this gem to work but it should't take you more than 5 minutes.
 
 ## Installation
 
@@ -17,7 +17,7 @@ gem install rabl-rails
 or add directly to your `Gemfile`
 
 ```
-gem 'rabl'
+gem 'rabl-rails'
 ```
 
 And that's it !
@@ -29,12 +29,12 @@ assuming you have a `Post` model filled with blog posts, and a `PostController`
 
 ```ruby
 class PostController < ApplicationController
-	respond_to :html, :json, :xml
-	
-	def index
-		@posts = Post.order('created_at DESC')
-		respond_with(@posts)
-	end
+  respond_to :html, :json, :xml
+
+  def index
+	  @posts = Post.order('created_at DESC')
+	  respond_with(@posts)
+  end
 end
 ```
 
@@ -64,21 +64,209 @@ That's a basic overview but there is a lot more to see such as partials, inherit
 
 As opposed to standard RABL gem, this gem separate compiling (a.k.a transforming a RABL-rails template into a Ruby hash) and the actual rendering of the object or collection. This allow to only compile the template once and only Ruby hashes.
 
-The fact of compiling the template outside of any rendering context prevent us to use any instances variables (with the exception of node) in the template because they are rendering objects. So instead, you'll have to use symbols of these variables. For example, to render the collection `@posts` inside your `PostController`, you need to use `:@posts` inside of the template.
+The fact of compiling the template outside of any rendering context prevent us to use any instances variables (with the exception of node) in the template because they are rendering objects. So instead, you'll have to use symbols of these variables.For example, to render the collection `@posts` inside your `PostController`, you need to use `:@posts` inside of the template.
 
 The only places where you can actually used instance variables  are into Proc (or lambda) or into custom node (because they are treated as Proc).
 
 ```ruby
-	# We reference the @posts varibles that will be used at rendering time
-	collection :@posts
+# We reference the @posts varibles that will be used at rendering time
+collection :@posts
 	
-	# Here you can use directly the instance variable because it
-	# will be evaluated when rendering the object 
-	node(:read) { |post| post.read_by?(@user) }
+# Here you can use directly the instance variable because it
+# will be evaluated when rendering the object 
+node(:read) { |post| post.read_by?(@user) }
 ```
 
 The same rule applies for view helpers such as `current_user`
 
 After the template is compiled into a hash, Rabl-rails will use a renderer to do the actual output. Actually, only JSON and XML formats are supported.
 
-## Usage
\ No newline at end of file
+## Configuration
+
+RablRails works out of the box, with default options and fastest engine available (yajl, libxml). But depending on your needs, you might want to change that or how your output looks like. You can set global configuration in your application:
+
+```ruby
+  # config/initializers/rabl_rails.rb
+  RablRails.configure do |config|
+    # These are the default
+    # config.cache_templates = true
+    # config.include_json_root = true
+    # config.json_engine = :yajl
+  end
+```
+
+## Usage
+
+### Data declaration
+
+To declare data to use in the template, you can use either `object` or `collection` with the symbol name or your data.
+
+```ruby
+# app/views/users/show.json.rabl
+object :@user
+
+# app/views/users/index.json.rabl
+collection :@users
+```
+
+You can specify root label for the collection using hash or `:root` option
+
+```ruby
+collection :@posts, root: :articles
+#is equivalent to
+collection :@posts => :articles
+
+# => { "articles" : [{...}, {...}] }
+```
+
+There are rares cases when the template doesn't map directly to any object. In these cases, you can set data to false or skip data declaration altogether.
+
+```ruby
+object false
+node(:some_count) { |_| @user.posts.count }
+child(:@user) { attribute :name }
+```
+
+### Attributes / Methods
+
+Basic usage is to declared attributes to include in the response. These can be database attributes or any instance method.
+
+```ruby
+attributes :id, :title, :to_s
+```
+
+You can aliases these attributes in your response
+
+```ruby
+attributes title: :foo, to_s: :bar
+# => { "foo" : <title value>, "bar" : <to_s value> } 
+```
+
+### Child nodes
+
+You can include nested information from data associated with the parent model. You can also alias these associations.
+For example if you have a `Post` model that belongs to a `User`
+
+```ruby
+object :@post
+child(user: :author) do
+	attributes :name
+end
+# => { "post" : { "author" : { "name" : "John D." } } }
+```
+
+You can also use arbitrary data source with child nodes
+```ruby
+child(:@users) do
+	attributes :id, :name
+end
+```
+
+### Custom nodes
+
+You can create custom node in your response, based on the result of the given block
+
+```ruby
+object :@user
+node(:full_name) { |u| u.first_name + " " + u.last_name }
+# => { "user" : { "full_name" : "John Doe" } }
+```
+
+You can add the node only if a condition is true
+
+```ruby
+node(:email, if: -> { |u| u.valid_email? }) do |u| 
+	u.email
+end
+```
+
+Nodes are evaluated at the rendering time, so you can use any instance variables or view helpers inside them
+
+```ruby
+node(:url) { |post| post_url(post) }
+```
+
+Custom nodes are really usefull to create flexible representations of your resources.
+
+### Extends & Partials
+
+Often objects have a basic representation that is shared accross different views and enriched according to it. To avoid code redundancy you can extend your template from any other RABL template.
+
+```ruby
+# app/views/users/base.json.rabl
+attributes :id, :name
+
+# app/views/users/private.json.rabl
+extends 'users/base'
+attributes :super_secret_attribute
+```
+
+You can also extends template in child nodes using `partial` option (this is the same as using `extends` in the child block)
+
+```ruby
+collection @posts
+attribute :title
+child(:user, partial: 'users/base')
+```
+
+Partials can also be used inside custom nodes. When using partial this way, you MUST declare the object associated to the partial
+
+```ruby
+node(:location) do |user|
+	{ city: user.city, address: partial('users/address', object: m.address) }
+end
+```
+
+### Nesting
+
+Rabl allow you to define easily your templates, even with hierarchy of 2 or 3 levels. Let's suppose your have a `thread` model that has many `posts` and that each post has many `comments`. We can display a full thread in a few lines
+
+```ruby
+object :@thread
+attribute :caption
+child :posts do
+  attribute :title
+	child :comments do
+		extends 'comments/base'
+	end
+end
+```
+
+### Caching
+
+Caching is not a part of Rabl-rails. It is already in Rails itself, because caching all view output is the same as action caching (Rails caching is even better because it will also not run your queries).
+
+Moreover caching each object in a collection can be really not effective with big collections or simple objects. This is also a nightmare with cache expiration.
+
+### Render object directly
+
+There are cases when you want to render object outside Rails view context. For instance to render objects in the console or to create message queue payloads. For these situations, you can use `RablRails.render` as show below:
+
+```ruby
+Rabl.render(object, template, :view_path => 'app/views', :format => :json) #=> "{...}"
+```
+
+You can find more informations about how to use this method in the [wiki](http://github.com/ccocchi/rabl-rails/wiki/Render-object-directly) 
+
+## Performance
+
+Benchmarks have been made using this [application](http://github.com/ccocchi/rabl-benchmark), with rabl 0.6.14 and rabl-rails 0.1.0
+
+Overall, Rabl-rails is **20% faster and use 10% less memory**.
+
+You can see full tests on test application repository.
+
+## Authors and contributors
+
+* [Christopher Cocchi-Perrier](http://github.com/ccocchi) - Creator of the project
+
+Want to add another format to Rabl-rails ? Checkout [JSON renderer](http://github.com/ccocchi/rabl-rails/blob/master/lib/rabl-rails/renderers/json.rb) for reference
+Want to make another change ? Just fork and contribute, any help is very much appreciated
+
+## Original idea
+
+* [RABL](http://github.com/nesquena/rabl) Standart RABL gem. I used it a lot before deciding I wanted faster views
+
+## Copyright
+
+Copyright © 2011-2012 Christopher Cocchi-Perrier. See [MIT-LICENSE](http://github.com/ccocchi/rabl-rails/blob/master/MIT-LICENSE) for details.
diff --git a/lib/rabl-rails.rb b/lib/rabl-rails.rb
index 89b56aa..d6b645b 100644
--- a/lib/rabl-rails.rb
+++ b/lib/rabl-rails.rb
@@ -1,7 +1,6 @@
 require 'rails/railtie'
 
 require 'active_support'
-require 'active_support/json'
 require 'active_support/core_ext/class/attribute_accessors'
 
 require 'rabl-rails/version'
@@ -14,25 +13,46 @@ require 'rabl-rails/library'
 require 'rabl-rails/handler'
 require 'rabl-rails/railtie'
 
+require 'multi_json'
+
 module RablRails
+  extend Renderer
+
   autoload :Responder, 'rabl-rails/responder'
 
   mattr_accessor :cache_templates
   @@cache_templates = true
 
+  mattr_accessor :include_json_root
+  @@include_json_root = true
+
+  mattr_reader :json_engine
+  @@json_engine = :yajl
+
   mattr_accessor :use_custom_responder
   @@use_custom_responder = false
-  
+
   mattr_accessor :responder_default_template
   @@responder_default_template = 'show'
 
   def self.configure
     yield self
-    
+
     ActionController::Base.responder = Responder if self.use_custom_responder
   end
 
+  def self.json_engine=(name)
+    MultiJson.engine = name
+    @@json_engine = name
+  rescue LoadError
+    Rails.logger.warn %Q(WARNING: rabl-rails could not load "#{self.json_engine}" as JSON engine, fallback to default)
+  end
+
   def self.cache_templates?
     ActionController::Base.perform_caching && @@cache_templates
   end
+
+  def self.load_default_engines!
+    self.json_engine = :yajl
+  end
 end
diff --git a/lib/rabl-rails/compiler.rb b/lib/rabl-rails/compiler.rb
index 6f1fd83..7e78ea2 100644
--- a/lib/rabl-rails/compiler.rb
+++ b/lib/rabl-rails/compiler.rb
@@ -25,21 +25,10 @@ module RablRails
     #   object :@user, :root => :author
     #
     def object(data, options = {})
-      data, name = extract_data_and_name(data)
-      @template.data = data
-      @template.root_name = options[:root] || name
-    end
-
-    #
-    # Sets a collection to be used as data for the template
-    # Example:
-    #   collection :@users
-    #   collection :@users, :root => :morons
-    #
-    def collection(data, options = {})
-      object(data)
-      @template.root_name = options[:root] if options[:root]
+      @template.data, @template.root_name = extract_data_and_name(data)
+      @template.root_name = options[:root] if options.has_key? :root
     end
+    alias_method :collection, :object
 
     #
     # Includes the attribute or method in the output
@@ -71,9 +60,9 @@ module RablRails
     #
     def child(name_or_data, options = {})
       data, name = extract_data_and_name(name_or_data)
-      name = options[:root] if options[:root]
+      name = options[:root] if options.has_key? :root
       if options[:partial]
-        template = Library.instance.get(options[:partial])
+        template = Library.instance.compile_template_from_path(options[:partial])
         @template[name] = template.merge!(:_data => data)
       elsif block_given?
         @template[name] = sub_compile(data) { yield }
@@ -121,7 +110,7 @@ module RablRails
     #   extends 'users/base'
     #
     def extends(path)
-      t = Library.instance.get(path)
+      t = Library.instance.compile_template_from_path(path)
       @template.merge!(t.source)
     end
 
@@ -136,11 +125,8 @@ module RablRails
     def extract_data_and_name(name_or_data)
       case name_or_data
       when Symbol
-        if name_or_data.to_s.start_with?('@')
-          [name_or_data, nil]
-        else
-          [name_or_data, name_or_data]
-        end
+        str = name_or_data.to_s
+        str.start_with?('@') ? [name_or_data, str[1..-1]] : [name_or_data, name_or_data]
       when Hash
         name_or_data.first
       else
diff --git a/lib/rabl-rails/library.rb b/lib/rabl-rails/library.rb
index a727e7f..0324369 100644
--- a/lib/rabl-rails/library.rb
+++ b/lib/rabl-rails/library.rb
@@ -12,13 +12,13 @@ module RablRails
       path = context.instance_variable_get(:@virtual_path)
       @lookup_context = context.lookup_context
 
-      compiled_template = get_compiled_template(path, source)
+      compiled_template = compile_template_from_source(source, path)
 
       format = context.params[:format] || 'json'
       Renderers.const_get(format.upcase!).new(context).render(compiled_template)
     end
 
-    def get_compiled_template(path, source)
+    def compile_template_from_source(source, path = nil)
       if path && RablRails.cache_templates?
         @cached_templates[path] ||= Compiler.new.compile_source(source)
         @cached_templates[path].dup
@@ -27,11 +27,11 @@ module RablRails
       end
     end
 
-    def get(path)
+    def compile_template_from_path(path)
       template = @cached_templates[path]
       return template if template
       t = @lookup_context.find_template(path, [], false)
-      get_compiled_template(path, t.source)
+      compile_template_from_source(t.source, path)
     end
   end
 end
\ No newline at end of file
diff --git a/lib/rabl-rails/railtie.rb b/lib/rabl-rails/railtie.rb
index 207bd61..eee7e22 100644
--- a/lib/rabl-rails/railtie.rb
+++ b/lib/rabl-rails/railtie.rb
@@ -1,6 +1,8 @@
 module RablRails
   class Railtie < Rails::Railtie
     initializer "rabl.initialize" do |app|
+      RablRails.load_default_engines!
+      
       ActiveSupport.on_load(:action_view) do
         ActionView::Template.register_template_handler :rabl, RablRails::Handlers::Rabl
       end
diff --git a/lib/rabl-rails/renderer.rb b/lib/rabl-rails/renderer.rb
index 0ee0acf..168b409 100644
--- a/lib/rabl-rails/renderer.rb
+++ b/lib/rabl-rails/renderer.rb
@@ -1,2 +1,91 @@
 require 'rabl-rails/renderers/base'
-require 'rabl-rails/renderers/json'
\ No newline at end of file
+require 'rabl-rails/renderers/json'
+
+module RablRails
+  module Renderer
+    class TemplateNotFound < StandardError; end
+    
+    mattr_reader :view_path
+    @@view_path = 'app/views'
+
+    class LookupContext
+      T = Struct.new(:source)
+
+      def initialize(view_path, format)
+        @view_path = view_path || RablRails::Renderer.view_path
+        @format = format
+      end
+
+      #
+      # Manually find given rabl template file with given format.
+      # View path can be set via options, otherwise default Rails
+      # path is used
+      #
+      def find_template(name, opt, partial = false)
+        path = File.join(@view_path, "#{name}.#{@format}.rabl")
+        File.exists?(path) ? T.new(File.read(path)) : nil
+      end
+    end
+
+    #
+    # Context class to emulate normal Rails view
+    # context
+    #
+    class Context
+      attr_reader :format
+      attr_accessor :target_object
+
+      def initialize(path, options)
+        @virtual_path = path
+        @format = options.delete(:format) || 'json'
+        @_assigns = {}
+        @options = options
+
+        options[:locals].each { |k, v| @_assigns[k.to_s] = v } if options[:locals]
+      end
+
+      def assigns
+        @_assigns
+      end
+
+      def params
+        { format: format }
+      end
+
+      def lookup_context
+        @lookup_context ||= LookupContext.new(@options[:view_path], format)
+      end
+    end
+  
+    #
+    # Renders object with the given rabl template.
+    # 
+    # Object can also be passed as an option :
+    # { locals: { object: obj_to_render } }
+    #
+    # Default render format is JSON, but can be changed via
+    # an option: { format: 'xml' }
+    #
+    # If template includes uses of instance variables (usually 
+    # defined in the controller), you can passed them as locals
+    # options.
+    # For example, if you have this template:
+    #   object :@user
+    #   node(:read) { |u| u.has_read?(@post) }
+    #
+    # Your method call should look like this:
+    #   RablRails.render(user, 'users/show', locals: { post: Post.new })
+    #
+    def render(object, template, options = {})
+      object = options[:locals].delete(:object) if !object && options[:locals]
+
+      c = Context.new(template, options)
+      c.target_object = object
+
+      t = c.lookup_context.find_template(template, [], false)
+      raise TemplateNotFound unless t
+
+      Library.instance.get_rendered_template(t.source, c)
+    end
+  end
+end
\ No newline at end of file
diff --git a/lib/rabl-rails/renderers/base.rb b/lib/rabl-rails/renderers/base.rb
index 6eebe49..cb9bcac 100644
--- a/lib/rabl-rails/renderers/base.rb
+++ b/lib/rabl-rails/renderers/base.rb
@@ -3,9 +3,11 @@ module RablRails
     class PartialError < StandardError; end
 
     class Base
+      attr_accessor :_options
 
       def initialize(context) # :nodoc:
         @_context = context
+        @_options = {}
         setup_render_context
       end
 
@@ -16,10 +18,11 @@ module RablRails
       # method defined by the renderer.
       #
       def render(template)
-        collection_or_resource = @_context.instance_variable_get(template.data) if template.data
+        collection_or_resource = instance_variable_get(template.data) if template.data
+        collection_or_resource = @_context.target_object unless collection_or_resource || template.data == false || !@_context.respond_to?(:target_object)
         output_hash = collection_or_resource.respond_to?(:each) ? render_collection(collection_or_resource, template.source) :
           render_resource(collection_or_resource, template.source)
-        output_hash = { template.root_name => output_hash } if template.root_name
+        _options[:root_name] = template.root_name
         format_output(output_hash)
       end
 
@@ -52,7 +55,7 @@ module RablRails
           when Hash
             current_value = value.dup
             data_symbol = current_value.delete(:_data)
-            object = data_symbol.nil? ? data : data_symbol.to_s.start_with?('@') ? @_context.instance_variable_get(data_symbol) : data.send(data_symbol)
+            object = data_symbol.nil? ? data : data_symbol.to_s.start_with?('@') ? instance_variable_get(data_symbol) : data.send(data_symbol)
 
             if key.to_s.start_with?('_') # glue
               current_value.each_pair { |k, v|
@@ -86,7 +89,7 @@ module RablRails
 
         return [] if object.respond_to?(:empty?) && object.empty?
 
-        template = Library.instance.get(template_path)
+        template = Library.instance.compile_template_from_path(template_path)
         object.respond_to?(:each) ? render_collection(object, template.source) : render_resource(object, template.source)
       end
 
@@ -106,7 +109,7 @@ module RablRails
       #
       def setup_render_context
         @_context.instance_variable_get(:@_assigns).each_pair { |k, v|
-          instance_variable_set("@#{k}", v) unless k.start_with?('_') || k == @data
+          instance_variable_set("@#{k}", v) unless k.start_with?('_')
         }
       end
     end
diff --git a/lib/rabl-rails/renderers/json.rb b/lib/rabl-rails/renderers/json.rb
index f903476..632aaec 100644
--- a/lib/rabl-rails/renderers/json.rb
+++ b/lib/rabl-rails/renderers/json.rb
@@ -2,7 +2,8 @@ module RablRails
   module Renderers
     class JSON < Base
       def format_output(hash)
-        ActiveSupport::JSON.encode(hash)
+        hash = { _options[:root_name] => hash } if _options[:root_name] && RablRails.include_json_root
+        MultiJson.encode(hash)
       end
     end
   end
diff --git a/lib/rabl-rails/version.rb b/lib/rabl-rails/version.rb
index f73f1e5..50534f0 100644
--- a/lib/rabl-rails/version.rb
+++ b/lib/rabl-rails/version.rb
@@ -1,3 +1,3 @@
 module RablRails
-  VERSION = '0.1.0'
+  VERSION = '0.1.2'
 end
diff --git a/rabl-rails.gemspec b/rabl-rails.gemspec
index 0748115..bf7c0bd 100644
--- a/rabl-rails.gemspec
+++ b/rabl-rails.gemspec
@@ -1,24 +1,22 @@
 $:.push File.expand_path("../lib", __FILE__)
-
-# Maintain your gem's version:
 require "rabl-rails/version"
 
-# Describe your gem and declare its dependencies:
 Gem::Specification.new do |s|
   s.name        = "rabl-rails"
   s.version     = RablRails::VERSION
-  s.authors     = ["TODO: Your name"]
-  s.email       = ["TODO: Your email"]
-  s.homepage    = "TODO"
-  s.summary     = "TODO: Summary of RablRails."
-  s.description = "TODO: Description of RablRails."
+  s.platform    = Gem::Platform::RUBY
+  s.authors     = ["Christopher Cocchi-Perrier"]
+  s.email       = ["cocchi.c@gmail.com"]
+  s.homepage    = "https://github.com/ccocchi/rabl-rails"
+  s.summary     = "Fast Rails 3+ templating system with JSON and XML support"
+  s.description = "Fast Rails 3+ templating system with JSON and XML support"
 
-  s.files = Dir["{app,config,db,lib}/**/*"] + ["MIT-LICENSE", "Rakefile", "README.md"]
-  s.test_files = Dir["test/**/*"]
+  s.files         = `git ls-files`.split("\n")
+  s.test_files    = `git ls-files -- test/*`.split("\n")
+  s.require_paths = ["lib"]
 
-  s.add_dependency "activesupport", "~> 3.2.1"
+  s.add_dependency "activesupport", "~> 3.0"
+  s.add_dependency "railties", "~> 3.0"
 
-  s.add_development_dependency "sqlite3"
-  s.add_development_dependency "railties", "~> 3.2.1"
-  s.add_development_dependency "actionpack", "~> 3.2.1"
+  s.add_development_dependency "actionpack", "~> 3.0"
 end
diff --git a/test/cache_templates_test.rb b/test/cache_templates_test.rb
index 7a7797c..06aa5e9 100644
--- a/test/cache_templates_test.rb
+++ b/test/cache_templates_test.rb
@@ -10,24 +10,24 @@ class CacheTemplatesTest < ActiveSupport::TestCase
 
   test "cache templates if perform_caching is active and cache_templates is enabled" do
     ActionController::Base.stub(:perform_caching).and_return(true)
-    @library.get_compiled_template('some/path', "")
-    t = @library.get_compiled_template('some/path', "attribute :id")
+    @library.compile_template_from_source('', 'some/path')
+    t = @library.compile_template_from_source("attribute :id", 'some/path')
 
     assert_equal({}, t.source)
   end
 
   test "cached templates should not be modifiable in place" do
     ActionController::Base.stub(:perform_caching).and_return(true)
-    @library.get_compiled_template('some/path', "")
-    t = @library.get_compiled_template('some/path', "attribute :id")
+    @library.compile_template_from_source('', 'some/path')
+    t = @library.compile_template_from_source("attribute :id", 'some/path')
 
     assert_equal({}, t.source)
   end
 
   test "don't cache templates cache_templates is enabled but perform_caching is not active" do
     ActionController::Base.stub(:perform_caching).and_return(false)
-    @library.get_compiled_template('some/path', "")
-    t = @library.get_compiled_template('some/path', "attribute :id")
+    @library.compile_template_from_source('', 'some/path')
+    t = @library.compile_template_from_source("attribute :id", 'some/path')
 
     assert_equal({ :id => :id }, t.source)
   end
diff --git a/test/compiler_test.rb b/test/compiler_test.rb
index 944fc56..b9f8fcc 100644
--- a/test/compiler_test.rb
+++ b/test/compiler_test.rb
@@ -42,6 +42,11 @@ class CompilerTest < ActiveSupport::TestCase
     assert_equal :@user, t.data
     assert_equal :users, t.root_name
   end
+  
+  test "root can be set to false via options" do
+    t = @compiler.compile_source(%( object :@user, root: false))
+    assert_equal false, t.root_name
+  end
 
   # Compilation
 
@@ -94,7 +99,7 @@ class CompilerTest < ActiveSupport::TestCase
     mock_template = RablRails::CompiledTemplate.new
     mock_template.source = { :id => :id }
     RablRails::Library.reset_instance
-    RablRails::Library.instance.stub(:get).with('users/base').and_return(mock_template)
+    RablRails::Library.instance.stub(:compile_template_from_path).with('users/base').and_return(mock_template)
 
     t = @compiler.compile_source(%{child(:user, :partial => 'users/base') })
     assert_equal( {:user => { :_data => :user, :id => :id } }, t.source)
@@ -120,7 +125,7 @@ class CompilerTest < ActiveSupport::TestCase
   test "extends use other template source as itself" do
     template = mock('template', :source => { :id => :id })
     RablRails::Library.reset_instance
-    RablRails::Library.instance.stub(:get).with('users/base').and_return(template)
+    RablRails::Library.instance.stub(:compile_template_from_path).with('users/base').and_return(template)
     t = @compiler.compile_source(%{ extends 'users/base' })
     assert_equal({ :id => :id }, t.source)
   end
@@ -149,4 +154,10 @@ class CompilerTest < ActiveSupport::TestCase
     assert_equal({ :user => { :_data => :@user, :id => :id } }, t.source)
     assert_equal false, t.data
   end
+  
+  test "name extraction from argument" do
+    assert_equal [:@users, 'users'], @compiler.send(:extract_data_and_name, :@users)
+    assert_equal [:users, :users], @compiler.send(:extract_data_and_name, :users)
+    assert_equal [:@users, :authors], @compiler.send(:extract_data_and_name, :@users => :authors)
+  end
 end
\ No newline at end of file
diff --git a/test/deep_nesting_test.rb b/test/deep_nesting_test.rb
index 7fc8bed..e689233 100644
--- a/test/deep_nesting_test.rb
+++ b/test/deep_nesting_test.rb
@@ -22,9 +22,8 @@ class DeepNestingTest < ActiveSupport::TestCase
     @user.stub(:respond_to?).with(:each).and_return(false)
 
     @context = Context.new
-    @context.stub(:instance_variable_get).with(:@user).and_return(@user)
-    @context.stub(:instance_variable_get).with(:@virtual_path).and_return('users/show')
-    @context.stub(:instance_variable_get).with(:@_assigns).and_return({})
+    @context.assigns['user'] = @user
+    @context.virtual_path = 'users/show'
     @context.stub(:lookup_context).and_return(mock(:find_template => mock(:source => %{ object :@comment\n attribute :content })))
   end
 
@@ -40,7 +39,7 @@ class DeepNestingTest < ActiveSupport::TestCase
       end
     }
 
-    assert_equal(ActiveSupport::JSON.encode({
+    assert_equal(MultiJson.encode(:user => {
       :id => 1,
       :name => 'foobar',
       :posts => [{
diff --git a/test/non_restful_response_test.rb b/test/non_restful_response_test.rb
index 44c3109..5228f15 100644
--- a/test/non_restful_response_test.rb
+++ b/test/non_restful_response_test.rb
@@ -24,7 +24,7 @@ class NonRestfulResponseTest < ActiveSupport::TestCase
       end
     }
 
-    assert_equal(ActiveSupport::JSON.encode({
+    assert_equal(MultiJson.encode({
       :post_count => 10,
       :user => {
         :id => 1,
diff --git a/test/render_test.rb b/test/render_test.rb
new file mode 100644
index 0000000..8108f7c
--- /dev/null
+++ b/test/render_test.rb
@@ -0,0 +1,64 @@
+require 'test_helper'
+require 'pathname'
+require 'tmpdir'
+
+class RenderTest < ActiveSupport::TestCase
+
+  setup do
+    @user = User.new(1, 'Marty')
+    @user.stub(:respond_to?).with(:each).and_return(false)
+    @tmp_path = Pathname.new(Dir.mktmpdir)
+  end
+
+  test "allow object to be passed as an option" do
+    File.open(@tmp_path + "nil.json.rabl", "w") do |f|
+      f.puts %q{
+        object :@user
+        attributes :name
+      }
+    end
+    assert_equal %q({"user":{"name":"Marty"}}), RablRails.render(nil, 'nil', locals: { object: @user }, view_path: @tmp_path)
+  end
+
+  test "load source from file" do
+    File.open(@tmp_path + "show.json.rabl", "w") do |f|
+      f.puts %q{
+        object :@user
+        attributes :id, :name
+      }
+    end
+    assert_equal %q({"user":{"id":1,"name":"Marty"}}), RablRails.render(@user, 'show', view_path: @tmp_path)
+  end
+  
+  test "raise error if template is not found" do
+    assert_raises(RablRails::Renderer::TemplateNotFound) { RablRails.render(@user, 'not_found') }
+  end
+  
+  test "instance variables can be passed via options[:locals]" do
+    File.open(@tmp_path + "instance.json.rabl", "w") do |f|
+      f.puts %q{
+        object false
+        node(:username) { |_| @user.name } 
+      }
+    end
+    assert_equal %q({"username":"Marty"}), RablRails.render(nil, 'instance', view_path: @tmp_path, locals: { user: @user })
+  end
+
+  test "handle path for extends" do
+    File.open(@tmp_path + "extend.json.rabl", "w") do |f|
+      f.puts %q{
+        object :@user
+        extends 'base'
+      }
+    end
+    
+    File.open(@tmp_path + "base.json.rabl", "w") do |f|
+      f.puts %q{
+        attribute :name, as: :extended_name
+      }
+    end
+
+    assert_equal %q({"user":{"extended_name":"Marty"}}), RablRails.render(@user, 'extend', view_path: @tmp_path)
+  end
+
+end
\ No newline at end of file
diff --git a/test/renderers/json_renderer_test.rb b/test/renderers/json_renderer_test.rb
index 84a508f..c04052d 100644
--- a/test/renderers/json_renderer_test.rb
+++ b/test/renderers/json_renderer_test.rb
@@ -7,8 +7,7 @@ class TestJsonRenderer < ActiveSupport::TestCase
     @data.stub(:respond_to?).with(:each).and_return(false)
 
     @context = Context.new
-    @context.stub(:instance_variable_get).with(:@data).and_return(@data)
-    @context.stub(:instance_variable_get).with(:@_assigns).and_return({})
+    @context.assigns['data'] = @data
 
     @template = RablRails::CompiledTemplate.new
     @template.data = :@data
@@ -24,7 +23,7 @@ class TestJsonRenderer < ActiveSupport::TestCase
   end
 
   test "render collection with empty template" do
-    @context.stub(:instance_variable_get).with(:@data).and_return([@data])
+    @context.assigns['data'] = [@data]
     @template.source = {}
     assert_equal %q([{}]), render_json_output
   end
@@ -52,7 +51,7 @@ class TestJsonRenderer < ActiveSupport::TestCase
 
   test "render collection with attributes" do
     @data = [User.new(1, 'foo', 'male'), User.new(2, 'bar', 'female')]
-    @context.stub(:instance_variable_get).with(:@data).and_return(@data)
+    @context.assigns['data'] = @data
     @template.source = { :uid => :id, :name => :name, :gender => :sex }
     assert_equal %q([{"uid":1,"name":"foo","gender":"male"},{"uid":2,"name":"bar","gender":"female"}]), render_json_output
   end
@@ -87,14 +86,14 @@ class TestJsonRenderer < ActiveSupport::TestCase
 
   test "partial should be evaluated at rendering time" do
     # Set assigns
-    @context.stub(:instance_variable_get).with(:@_assigns).and_return({'user' => @data})
     @data.stub(:respond_to?).with(:empty?).and_return(false)
+    @context.assigns['user'] = @data
 
     # Stub Library#get
     t = RablRails::CompiledTemplate.new
     t.source = { :name => :name }
     RablRails::Library.reset_instance
-    RablRails::Library.instance.should_receive(:get).with('users/base').and_return(t)
+    RablRails::Library.instance.should_receive(:compile_template_from_path).with('users/base').and_return(t)
 
     @template.data = false
     @template.source = { :user => ->(s) { partial('users/base', :object => @user) } }
@@ -115,4 +114,17 @@ class TestJsonRenderer < ActiveSupport::TestCase
 
     assert_equal %q({"users":[]}), render_json_output
   end
+  
+  test "render object with root node" do
+    @template.root_name = :author
+    @template.source = { :id => :id, :name => :name }
+    assert_equal %q({"author":{"id":1,"name":"foobar"}}), render_json_output    
+  end
+  
+  test "render object with root options set to false" do
+    RablRails.include_json_root = false
+    @template.root_name = :author
+    @template.source = { :id => :id, :name => :name }
+    assert_equal %q({"id":1,"name":"foobar"}), render_json_output    
+  end
 end
\ No newline at end of file
diff --git a/test/test_helper.rb b/test/test_helper.rb
index 1a054dc..26b144e 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -31,10 +31,15 @@ module ActiveSupport
 end
 
 class Context
-  attr_accessor :virtual_path
-
+  attr_writer :virtual_path
+  
   def initialize
     @_assigns = {}
+    @virtual_path = nil
+  end
+  
+  def assigns
+    @_assigns
   end
 
   def params