Merb style url generator for named and resource routes in controllers.

lib/halcyon/controller.rb

@@ -142,6 +142,32 @@ def not_found(body='Not Found')
       {:status => 404, :body => body}
     end
     alias_method :missing, :not_found
+
+    # Returns the name of the controller in path form.
+    def self.controller_name
+      @controller_name ||= self.name.to_const_path
+    end
+
+    # Returns the name of the controller in path form.
+    def controller_name
+      self.class.controller_name
+    end
+
+    # Generates a URL based on the given name and passed
+    # options. Used with named routes and resources:
+    #
+    #  url(:users) # => "/users"
+    #  url(:admin_permissons) # => "/admin/permissions"
+    #  url(:user, @user) # => "/users/1"
+    #
+    # Based on the identical method of Merb's controller.
+    def url(name, rparams={})
+      Halcyon::Application::Router.generate(name, rparams,
+        { :controller => controller_name,
+          :action => method
+        }
+      )
+    end
 
   end
 

spec/halcyon/controller_spec.rb

@@ -1,3 +1,5 @@
+require 'ostruct'
+
 describe "Halcyon::Controller" do
 
   before do
@@ -52,5 +54,17 @@
     controller = Specs.new(Rack::MockRequest.env_for(""))
     controller.uri.should == '/'
   end
+
+  it 'should provide url accessor for resource index route' do
+    controller = Resources.new(Rack::MockRequest.env_for("/resources"))
+    controller.uri.should == controller.url(:resources)
+  end
+
+  it 'should provide url accessor for resource show route' do
+    resource = Model.new
+    resource.id = 1
+    controller = Resources.new(Rack::MockRequest.env_for("/resources/1"))
+    controller.uri.should == controller.url(:resource, resource)
+  end
 
 end

spec/spec_helper.rb

@@ -42,6 +42,10 @@ def show
   end
 end
 
+class Model
+  attr_accessor :id
+end
+
 class Halcyon::Application
   route do |r|
     r.resources :resources