First pass at pagination

features/recipe_search.feature

@@ -55,7 +55,7 @@ Feature: Search for recipes
       And a 0.5 second wait to allow the search index to be updated
       When I search for "yummy"
       Then I should see 20 results
-      And 3 pages of results
+      And I should see 3 pages of results
       And I should not be able to go to a previous page
       When I click page 3
       Then I should see 10 results

features/step_definitions/recipe_search.rb

@@ -153,3 +153,7 @@
 Then /^I should see (\d+) results$/ do |count|
   response.should have_selector("table a", :count => count.to_i)
 end
+
+Then /^I should see 3 pages of results$/ do
+  response.should have_selector(".pagination a", :content => "3")
+end

helpers.rb

@@ -52,5 +52,15 @@ def image_link(doc)
 
       %Q|<img src="/images/#{doc['_id']}/#{filename}"/>|
     end
+
+    def pagination(skip, limit, total)
+      total_pages = (total + limit - 1) / limit
+
+      links = (1..total_pages).map do |page|
+        %Q|<a href="">#{page}</a>|
+      end
+
+      %Q|<div class="pagination">#{links.join}</div>|
+    end
   end
 end

spec/eee_helpers_spec.rb

@@ -68,3 +68,18 @@
     image_link(doc).should be_nil
   end
 end
+
+describe "pagination" do
+  it "should have a link to other pages" do
+    pagination(0, 20, 41).
+      should have_selector("a", :content => "2")
+  end
+  it "should have 3 pages, when results.size > 2 * page size" do
+    pagination(0, 20, 41).
+      should have_selector("a", :content => "3")
+  end
+  it "should have only 2 pages, when results.size == 2 * page size" do
+    pagination(0, 20, 40).
+      should_not have_selector("a", :content => "3")
+  end
+end

spec/views/search.haml_spec.rb

@@ -2,15 +2,12 @@
 
 describe "search.haml" do
   before(:each) do
-    assigns[:results] =
-      @results = {
-      'rows' =>
+    assigns[:results] = @results =
       [
        { '_id' => 'id-one',   'title' => 'One',   'date' => '2009-04-15' },
        { '_id' => 'id-two',   'title' => 'Two',   'date' => '2009-04-14' },
        { '_id' => 'id-three', 'title' => 'Three', 'date' => '2009-04-13' },
       ]
-    }
   end
 
   it "should display the recipe's title" do
@@ -40,4 +37,12 @@
     render("/views/search.haml")
     response.should have_selector("td", :content => '2009-04-15')
   end
+
+  it "should pass skip, limit, and total count to pagination helper" do
+    assigns[:skip]  = 1
+    assigns[:limit] = 2
+    assigns[:total] = 3
+    self.should_receive(:pagination).with(1,2,3)
+    render("/views/search.haml")
+  end
 end

views/search.haml

@@ -2,8 +2,10 @@
   %tr
     %th= "Name"
     %th= "Date"
-  - @results['rows'].each_with_index do |result, i|
+  - @results.each_with_index do |result, i|
     %tr{:class => "row#{i % 2}"}
       %td
         %a{:href => "/recipes/#{result['_id']}"}= result['title']
       %td= result['date']
+
+= pagination(@skip, @limit, @total)