Fixed yield tag

README.md

@@ -50,7 +50,15 @@ In puffer pages you can use puffer pages layouts or applcation layouts.
 For puffer pages layouts page parts placeholder is liquid tag yield.
 <pre>{% yield [page_part_name] %}</pre>
 
-If no page_part_name specified, puffer layout will use page part with default name (`body`). You can change defaul page part name in puffer pages setup initializer.
+If no page_part_name specified, puffer layout will use page part with default name ('body'). You can change defaul page part name in puffer pages setup initializer.
+
+Ex.
+<pre>
+  {% yield %} # renders body
+  {% yield 'sidebar' %} # renders sidebar
+  {% assign sb = 'sidebar' %}
+  {% yield sb %} # renders sidebar too
+</pre>
 
 ### Application layouts.
 For application layout page part body will be inserted instead of SUDDENLY! <%= yield %>

app/models/page.rb

@@ -99,7 +99,7 @@ def inherited_page_parts
   end
 
   def part name
-    inherited_page_parts.detect {|part| part.name = name}
+    inherited_page_parts.detect {|part| part.name == name}
   end
 
   def is_layout?

lib/puffer_pages/liquid/tags/yield.rb

@@ -3,20 +3,20 @@ module Liquid
     module Tags
 
       class Yield < ::Liquid::Tag
-        Syntax = /(\w+)/
+        Syntax = /(#{::Liquid::QuotedFragment}+)/
 
         def initialize(tag_name, markup, tokens)
           if markup =~ Syntax
             @name = $1
           else
-            @name = PufferPages.primary_page_part_name
+            @name = "'#{PufferPages.primary_page_part_name}'"
           end
 
           super
         end
 
         def render(context)
-          swallow_nil{context.registers[:page].part(@name).render(context)}
+          context.registers[:page].part(context[@name]).render(context)
         end
       end
 

spec/models/page_spec.rb

@@ -122,9 +122,9 @@
     end
 
     it 'should render layout' do
-      @layout = Fabricate :layout, :name => 'foo_layout', :body => "{% yield %} {% yield sidebar %}"
+      @layout = Fabricate :layout, :name => 'foo_layout', :body => "|{% yield %}|{% yield 'sidebar' %}|{% assign sb = 'sidebar' %}|{% yield sb %}|"
       result = @root.render 'self' => PufferPages::Liquid::PageDrop.new(@root)
-      result.should == "#{@root.title} #{@root.name}"
+      result.should == "|#{@root.title}|#{@root.name}||#{@root.name}|"
     end
 
   end

spec/models/tags_spec.rb

@@ -0,0 +1,9 @@
+require 'spec_helper'
+
+describe 'Tags' do
+
+  #describe 'yield' do
+
+  #end
+
+end