only load photos for a post if photos_count > 0; display 'limited' or 'public' in stream elements; fix small like bug in stream

app/models/post.rb

@@ -31,7 +31,13 @@ class Post < ActiveRecord::Base
     t.add :root
     t.add :o_embed_cache
     t.add :user_like
-    t.add :photos
+    t.add lambda { |post|
+      if post.photos_count > 0
+        post.photos
+      else
+        []
+      end
+    }, :as => :photos
   end
 
   xml_attr :provider_display_name

app/views/templates/feedback.jst

@@ -1,4 +1,9 @@
 <div class="info">
+  <span class="post_scope">
+    <%= public ? "Public" : "Limited" %>
+  </span>
+  –
+
   <a href="#" class="like_action" rel='nofollow'>
     <%= user_like ? "Unlike" : "Like" %>
   </a>

lib/stream/base.rb

@@ -114,7 +114,9 @@ class Stream::Base
   protected
   # @return [void]
   def like_posts_for_stream!(posts)
-    likes = Like.where(:target_id => posts.map(&:id), :target_type => "Post")
+    return posts unless @user
+
+    likes = Like.where(:author_id => @user.person.id, :target_id => posts.map(&:id), :target_type => "Post")
 
     like_hash = likes.inject({}) do |hash, like|
       hash[like.target_id] = like

spec/javascripts/app/views/feedback_view_spec.js

@@ -13,6 +13,7 @@ describe("app.views.Feedback", function(){
       this.link = function(){ return this.view.$(".like_action"); }
     })
 
+    context("likes", function(){
       context("when the user likes the post", function(){
         beforeEach(function(){
           this.view.render();
@@ -70,6 +71,7 @@ describe("app.views.Feedback", function(){
           expect(this.link().text()).toContain('Like');
         })
       })
+    })
 
     context("when the post is public", function(){
       beforeEach(function(){
@@ -77,6 +79,10 @@ describe("app.views.Feedback", function(){
         this.view.render();
       })
 
+      it("shows 'Public'", function(){
+        expect($(this.view.el).html()).toContain('Public')
+      })
+
       it("shows a reshare_action link", function(){
         expect($(this.view.el).html()).toContain('reshare_action')
       });
@@ -96,6 +102,10 @@ describe("app.views.Feedback", function(){
         this.view.render();
       })
 
+      it("shows 'Limited'", function(){
+        expect($(this.view.el).html()).toContain('Limited')
+      })
+
       it("does not show a reshare_action link", function(){
         expect($(this.view.el).html()).not.toContain('reshare_action');
       });