MS DC; fix participate stream ordering problem that was putting new posts on the bottom of things

app/controllers/streams_controller.rb

@@ -32,7 +32,6 @@ class StreamsController < ApplicationController
   end
 
   def participate
-    puts params.inspect
     stream_responder(Stream::Participate)
   end
 

features/participate_stream.feature

@@ -0,0 +1,21 @@
+@javascript
+Feature: The participate stream
+  Scenario: Sorting
+    Given a user with username "bob"
+    When I sign in as "bob@bob.bob"
+
+    And I post "A- I like turtles"
+    And I post "B- barack obama is your new bicycle"
+    And I post "C- barack obama is a square"
+
+    When I pin the post "A- I like turtles"
+    And I wait for 1 second
+    And I comment "Sassy sawfish" on "C- barack obama is a square"
+    And I wait for 1 second
+    And I pin the post "B- barack obama is your new bicycle"
+    And I wait for 1 second
+
+    When I go to the participate stream page
+    Then "B- barack obama is your new bicycle" should be post 1
+    And "C- barack obama is a square" should be post 2
+    And "A- I like turtles" should be post 3

features/step_definitions/comment_steps.rb

@@ -1,5 +1,5 @@
 When /^I focus the comment field$/ do
-  find("a.focus_comment_textarea").click
+  focus_comment_box
 end
 
 Then /^the first comment field should be open/ do
@@ -9,3 +9,8 @@ end
 Then /^the first comment field should be closed$/ do
   find("#main_stream .stream_element .new_comment").should_not be_visible
 end
+
+
+When /^I comment "([^"]*)" on "([^"]*)"$/ do |comment_text, post_text|
+  comment_on_post(post_text, comment_text)
+end

features/step_definitions/stream_steps.rb

@@ -1,3 +1,11 @@
 Then /^I should see an image in the publisher$/ do
   photo_in_publisher.should be_present
-end
+end
+
+Then /^I pin the post "([^"]*)"$/ do |post_text|
+  pin_post(post_text)
+end
+
+Then /^"([^"]*)" should be post (\d+)$/ do |post_text, position|
+  find(".stream_element:nth-child(#{position}) .post-content").text.should == post_text
+end

features/support/publishing_cuke_helpers.rb

@@ -25,6 +25,40 @@ module PublishingCukeHelpers
     find(".stream_element:contains('#{text}')")
   end
 
+  def pin_post(post_text)
+    within_post(post_text) do
+      click_link 'Pin'
+    end
+    wait_for_ajax_to_finish
+  end
+
+  def within_post(post_text)
+    within find_post_by_text(post_text) do
+      yield
+    end
+  end
+
+  def stream_posts
+    all('.stream_element')
+  end
+
+  def comment_on_post(post_text, comment_text)
+    within_post(post_text) do
+      focus_comment_box
+      make_comment(comment_text)
+    end
+    wait_for_ajax_to_finish
+  end
+
+  def make_comment(text)
+    fill_in "text", :with => text
+    click_button :submit
+  end
+
+  def focus_comment_box
+    find("a.focus_comment_textarea").click
+  end
+
   def wait_for_ajax_to_finish(wait_time=15)
     wait_until(wait_time) { evaluate_script("$.active") == 0 }
   end

public/javascripts/app/collections/posts.js

@@ -9,9 +9,4 @@ app.collections.Posts = Backbone.Collection.extend({
   parse: function(resp){
     return resp.posts;
   }
-//
-//
-//  comparator : function(post) {
-//    return -post.createdAt();
-//  }
 });

public/javascripts/app/models/stream.js

@@ -1,6 +1,13 @@
 app.models.Stream = Backbone.Collection.extend({
   initialize : function(){
-    this.posts = new app.collections.Posts();
+    this.posts = new app.collections.Posts([], this.postOptions());
+  },
+
+  postOptions :function(){
+      var order = this.sortOrder();
+      return {
+          comparator : function(post) { return -post[order](); }
+      }
   },
 
   url : function(){