Extract methods for creating absolute urls from methods that use them

So that we can reuse the part of the presenter that creates the absolute
urls without having to use the part that generates html using the
absolute urls.

app/decorators/author_decorator.rb

@@ -6,33 +6,42 @@ class AuthorDecorator < ApplicationDecorator
   def avatar
     h.content_tag "div", :class => "avatar" do
       h.link_to(
-        h.image_tag(avatar_src, :class => "photo user-image", :alt => "avatar"),
+        h.image_tag(
+          absolute_avatar_url,
+          :class => "photo user-image",
+          :alt => "avatar"
+        ),
         author.url
       )
     end
   end
 
-  # Creates a link to the user's website for their profile and adds http://
-  # if it isn't there
-  def website_link
-    url = if model.website[0,7] == "http://" or model.website[0,8] == "https://"
-            model.website
-          else
-            "http://#{model.website}"
-          end
-
-    h.link_to(url, url, :rel => 'website', :class => 'url')
-  end
-
-  private
-
   # Make sure we're using the asset path if the user's avatar is the default
   # (local) avatar
-  def avatar_src
+  def absolute_avatar_url
     if author.avatar_url.eql? Author::DEFAULT_AVATAR
       h.asset_path(author.avatar_url)
     else
       author.avatar_url
     end
   end
+
+  # Creates a link to the user's website for their profile
+  def website_link
+    h.link_to(
+      absolute_website_url,
+      absolute_website_url,
+      :rel => 'website',
+      :class => 'url'
+    )
+  end
+
+  # adds http:// if it isn't there
+  def absolute_website_url
+    if author.website[0,7] == "http://" or author.website[0,8] == "https://"
+      author.website
+    else
+      "http://#{author.website}"
+    end
+  end
 end