From 413a7602e8f8616742c9195605359c57f34799e1 Mon Sep 17 00:00:00 2001
From: Matt Aimonetti <mattaimonetti@gmail.com>
Date: Mon, 20 Jul 2009 15:52:14 -0700
Subject: [PATCH] added amount_pages to a paginated collection

---
 history.txt                                   | 17 +++++++++++++++++
 lib/couchrest/mixins/collection.rb            |  5 ++++-
 spec/couchrest/more/extended_doc_view_spec.rb |  5 +++++
 3 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/history.txt b/history.txt
index 1d886de..a026ff0 100644
--- a/history.txt
+++ b/history.txt
@@ -1,3 +1,20 @@
+== 0.40
+
+=== Notes
+
+  This release slightly modifies the API and if you were using a previous version of CouchRest,
+you will need to make the following modifications.
+
+
+
+* Major enhancements
+
+  * 
+  
+* Minor enhancements  
+
+  * Added #amount_pages to a paginated collection. (Matt Aimonetti)
+
 == 0.31
 
 * Major enhancements
diff --git a/lib/couchrest/mixins/collection.rb b/lib/couchrest/mixins/collection.rb
index b492dbe..e388146 100644
--- a/lib/couchrest/mixins/collection.rb
+++ b/lib/couchrest/mixins/collection.rb
@@ -83,6 +83,8 @@ module CouchRest
 
         DEFAULT_PAGE = 1
         DEFAULT_PER_PAGE = 30
+        
+        attr_accessor :amount_pages
 
         # Create a new CollectionProxy to represent the specified view.  If a
         # container class is specified, the proxy will create an object of the
@@ -110,7 +112,8 @@ module CouchRest
         # See Collection.paginate
         def paginate(options = {})
           page, per_page = parse_options(options)
-          results = @database.view(@view_name, pagination_options(page, per_page))
+          results = @database.view(@view_name, pagination_options(page, per_page)) 
+          @amount_pages ||= (results['total_rows'].to_f / per_page.to_f).ceil
           remember_where_we_left_off(results, page)
           convert_to_container_array(results)
         end
diff --git a/spec/couchrest/more/extended_doc_view_spec.rb b/spec/couchrest/more/extended_doc_view_spec.rb
index 7c5bbd2..f735c4c 100644
--- a/spec/couchrest/more/extended_doc_view_spec.rb
+++ b/spec/couchrest/more/extended_doc_view_spec.rb
@@ -365,6 +365,11 @@ describe "ExtendedDocument views" do
       articles.paginated_each(:per_page => 3) do |a|
         a.should_not be_nil
       end
+    end 
+    it "should have the amount of paginated pages" do
+      articles = Article.by_date :key => Date.today
+      articles.paginate(:per_page => 3) 
+      articles.amount_pages.should == 3
     end
     it "should provide a class method to access the collection directly" do
       articles = Article.collection_proxy_for('Article', 'by_date', :descending => true,