Implement discussion deletion

ember/app/components/index/discussion-listing.js

@@ -55,7 +55,7 @@ export default Ember.Component.extend(FadeIn, HasItemLists, {
   }),
 
   populateControls: function(items) {
-
+    this.addActionItem(items, 'delete', 'Delete', 'times', 'discussion.canDelete');
   },
 
   populateInfo: function(items) {
@@ -78,10 +78,19 @@ export default Ember.Component.extend(FadeIn, HasItemLists, {
     },
 
     markAsRead: function() {
-      if (this.get('discussion.isUnread')) {
+      var discussion = this.get('discussion');
+      if (discussion.get('isUnread')) {
         discussion.set('readNumber', discussion.get('lastPostNumber'));
         discussion.save();
       }
+    },
+
+    delete: function() {
+      if (confirm('Are you sure you want to delete this discussion?')) {
+        var discussion = this.get('discussion.content');
+        discussion.destroyRecord();
+        this.sendAction('discussionRemoved', discussion);
+      }
     }
   }
 });

ember/app/controllers/index.js

@@ -54,6 +54,13 @@ export default Ember.Controller.extend(UseComposer, Paneable, {
           }
         });
       });
+    },
+
+    discussionRemoved: function(discussion) {
+      if (this.get('controllers.discussion.model') === discussion) {
+        this.transitionToRoute('index');
+      }
+      this.get('index').send('discussionRemoved', discussion);
     }
   }
 });

ember/app/controllers/index/index.js

@@ -104,6 +104,11 @@ export default Ember.Controller.extend({
 				controller.set('meta', results.get('meta'));
 				controller.set('resultsLoading', false);
 			});
-		}
+		},
+
+    discussionRemoved: function(discussion) {
+      var model = this.get('model');
+      model.removeObject(model.findBy('content', discussion));
+    }
 	}
 });

ember/app/templates/index.hbs

@@ -32,7 +32,8 @@
             discussion=discussion
             searchQuery=index.searchQuery
             terminalPostType=index.terminalPostType
-            countType=index.countType}}
+            countType=index.countType
+            discussionRemoved="discussionRemoved"}}
         {{/each}}
       </ul>