Reverse tasks order

app/models/task.rb

@@ -10,6 +10,7 @@ class Task < ActiveRecord::Base
   validates_datetime :start, :on_or_after => '2000-01-01 08:00'
   validates_datetime :stop, :allow_blank => true
   validate :valid_stop
+  default_scope order('start desc')
 
   def duration
     (self[:stop].blank? ? Time.zone.now.to_i : self[:stop].to_i) - self[:start].to_i

app/views/tasks/index.html.erb

@@ -3,6 +3,7 @@
 <style type="text/css">
     .rightSpace {padding-right: 1.5em;}  
 </style>
+
 <table>
   <tr>
     <th>Title</th>
@@ -11,11 +12,10 @@
     <th>Stop</th>
     <th>Tags</th>
     <th>Description</th>
-    <th></th>
-    <th></th>
-    <th></th>
+    <td colspan='3'>
+      <%= link_to 'New Task', new_task_path %>
+    </td>
   </tr>
-
 <% @tasks.each do |task| %>
   <tr class="vevent">
     <td class="rightSpace summary"><%= task.title %></td>
@@ -43,7 +43,3 @@
   </tr>
 <% end %>
 </table>
-
-<br />
-
-<%= link_to 'New Task', new_task_path %>

features/step_definitions/task_steps.rb

@@ -4,6 +4,12 @@
   @task = Task.create!(:title => title, :start => 5.minutes.ago, :stop => 1.minute.ago, :user => current_user)
 end
 
+Given /^I have some tasks$/ do
+  @task = Task.create!(:title => 'Oldest task',      :start => 5.minutes.ago, :stop => 4.minute.ago, :user => current_user)
+  @task = Task.create!(:title => 'Old task',         :start => 4.minutes.ago, :stop => 3.minute.ago, :user => current_user)
+  @task = Task.create!(:title => 'Most recent task', :start => 3.minutes.ago, :stop => 2.minute.ago, :user => current_user)
+end
+
 Given /^I have a "([^\"]*)" task$/ do |duration_in_natural_language|
   seconds = ChronicDuration.parse(duration_in_natural_language).round
   duration = seconds.seconds.ago
@@ -42,3 +48,13 @@
       raise "\nUnsupported Capybara driver '#{Capybara::current_driver}', path: '#{Capybara::current_path}', url: '#{Capybara::current_url}', use rack::test or selenium/webdriver\n"
   end
 end
+
+Then /^I should see "([^"]*)" duration in task (\d+)$/ do |duration, number|
+  durations = page.all(:css, '.duration').map { |e| e.text.strip }
+  durations[number.to_i - 1].should == duration
+end
+
+Then /^I should see more recent tasks first$/ do
+  starts = page.all(:css, '.dtstart').map { |e| Timeliness.parse(e.text.strip) }
+  starts.first.should > starts.last
+end

features/task.feature

@@ -22,3 +22,8 @@ Feature: Task
     Then I should see "Task was successfully created."
     And I should see "A long task description explaining"
 
+  Scenario: Descending task order
+    Given I have some tasks
+    When I am on the tasks page
+    Then I should see more recent tasks first
+

features/task_switch.feature

@@ -55,5 +55,5 @@ Feature: Task Switch
     And I am on the new task page
     When I press "Switch Now"
     And I follow "Back"
-    Then I should see "1m" within ".duration"
+    Then I should see "1m" duration in task 2
 

spec/models/task_spec.rb

@@ -88,6 +88,13 @@
     t.should be_valid
   end
 
+  it "should retrieve tasks in descending order" do
+    t1 = @valid_user.tasks.create!(:title => 'Oldest task', :start => 5.minutes.ago)
+    t2 = @valid_user.tasks.create!(:title => 'Newest task', :start => 1.minutes.ago)
+    ts = @valid_user.tasks.all
+    ts.first.start.should > ts.last.start
+  end
+
   context "with frozen time" do
     before :each do
       Time.now = "2010-01-03 9:13:23 AM" #freeze time using time_travel plugin