! url_for, Rails accessing @controller directly. Bad!

gem/lib/rails2/lib/view_models/base.rb

@@ -10,6 +10,17 @@ class Base
     #
     include ActionController::Helpers
 
+    # This is really only needed because some Rails helpers access
+    # @controller directly.
+    # It's really bad.
+    #
+    # TODO Make it call super.
+    # 
+    def initialize model, controller_or_view
+      @model                 = model
+      @context = @controller = ContextExtractor.new(controller_or_view).extract
+    end
+
     class << self
 
       # Alias the context_method to the rails-centric controller_method.

gem/lib/shared/lib/view_models/base.rb

@@ -14,6 +14,8 @@ class Base
     # Create a view_model. To create a view_model, you need to have a model (to present) and a context.
     # The context is usually a view, a controller, or an app, but doesn't need to be.
     # 
+    # TODO Include this.
+    # 
     def initialize model, app_or_controller_or_view
       @model   = model
       @context = ContextExtractor.new(app_or_controller_or_view).extract

rails235/app/view_models/book.rb

@@ -3,6 +3,11 @@ class ViewModels::Book < ViewModels::Item
   model_reader :pages
 
   def description
+    # This is to test the url_for helper.
+    #
+    # Note: Needed because for example Rails accesses @controller, which shared/base does not provide.
+    #
+    url_for self
     "It has #{pages} pages."
   end
 

rails235/app/view_models/item.rb

@@ -1,6 +1,8 @@
 class ViewModels::Item < ViewModels::Base
 
   helper ERB::Util
+  helper ActionView::Helpers::TagHelper
+  helper ActionView::Helpers::UrlHelper
 
   model_reader :name, :filter_through => :html_escape
 

rails235/config/initializers/view_models_gem.rb

@@ -1,3 +1,3 @@
 # For development purposes.
 #
-# require File.join(File.dirname(__FILE__), '/../../../gem/init.rb')
+require File.join(File.dirname(__FILE__), '/../../../gem/lib/rails2/init.rb')

rails235/config/routes.rb

@@ -1,6 +1,10 @@
 ActionController::Routing::Routes.draw do |map|
   # The priority is based upon order of creation: first created -> highest priority.
-
+
+  map.resource :view_models do |vm|
+    vm.resource :book
+  end
+
   # Sample of regular route:
   #   map.connect 'products/:id', :controller => 'catalog', :action => 'view'
   # Keep in mind you can assign values other than :controller and :action