Add per_page option

git-svn-id: svn://errtheblog.com/svn/plugins/will_paginate@100 1eaa51fe-a21a-0410-9c2e-ae7a00a434c4

README

@@ -2,7 +2,7 @@ WillPaginate
 
 Ruby port by: PJ Hyett
 Original PHP source: http://www.strangerstudios.com/sandbox/pagination/diggstyle.php
-Contributors: K. Adam Christensen, Chris Wanstrath
+Contributors: K. Adam Christensen, Chris Wanstrath, Dr. Nic Williams
 
 Example usage: 
 

init.rb

@@ -1,4 +1,4 @@
 require 'will_paginate'
 require 'finder'
 ActionView::Base.send(:include, WillPaginate)
-ActiveRecord::Base.send(:include, WillPaginate::Finder)
+ActiveRecord::Base.send(:include, Finder)

lib/finder.rb

@@ -17,9 +17,11 @@ def method_missing_with_will_paginate(method_id, *args, &block)
         options = args.last.is_a?(Hash) ? args.pop : {}
         page    = options[:page].to_i.zero? ? 1 : options[:page].to_i
         options.delete(:page)
+        limit_per_page = options[:per_page] || per_page
+        options.delete(:per_page)
         args << options
 
-        with_scope :find => { :offset => (page - 1) * per_page, :limit => per_page } do
+        with_scope :find => { :offset => (page - 1) * limit_per_page, :limit => limit_per_page } do
           [send(method_id.to_s.sub(/^paginate/, 'find'), *args), page]
         end
       end