Don't hijack existing context to do this

common/static/common/js/discussion/views/discussion_thread_list_view.js

@@ -93,7 +93,7 @@
                 this.courseSettings = options.courseSettings;
                 this.hideRefineBar = options.hideRefineBar;
                 this.supportsActiveThread = options.supportsActiveThread;
-                this.profilePage = options.profilePage || false;
+                this.hideReadState = options.hideReadState || false;
                 this.displayedCollection = new Discussion(this.collection.models, {
                     pages: this.collection.pages
                 });
@@ -336,24 +336,17 @@
             DiscussionThreadListView.prototype.renderThread = function(thread) {
                 var threadCommentCount = thread.get('comments_count'),
                     threadUnreadCommentCount = thread.get('unread_comments_count'),
-                    // @TODO: On the profile page, thread read state for the viewing user is not accessible via the API.
-                    // In this case, neverRead is set to false regardless of read state returned by the API.
-                    // Fix this when the Discussions API can support this query.
-                    neverRead = (
-                        !thread.get('read') &&
-                        threadUnreadCommentCount === threadCommentCount &&
-                        !this.profilePage
-                    ),
+                    neverRead = !thread.get('read') && threadUnreadCommentCount === threadCommentCount,
                     threadPreview = this.containsMarkup(thread.get('body')) ? '' : thread.get('body'),
                     context = _.extend(
                         {
                             neverRead: neverRead,
                             threadUrl: thread.urlFor('retrieve'),
                             threadPreview: threadPreview,
-                            showThreadPreview: this.showThreadPreview
+                            showThreadPreview: this.showThreadPreview,
+                            hideReadState: this.hideReadState
                         },
-                        thread.toJSON(),
-                        this.profilePage ? {unread_comments_count: 0} : {}  // See comment above about profile page
+                        thread.toJSON()
                     );
                 return $(this.threadListItemTemplate(context).toString());
             };

common/static/common/js/spec/discussion/view/discussion_thread_list_view_spec.js

@@ -718,16 +718,14 @@
                 ).toEqual(newCommentsOnUnreadThread + ' new');
             });
 
-            it('should display every thread as read if profilePage is passed to the constructor', function() {
-                // @TODO: This is temporary, see comment in DiscussionThreadListView.prototype.renderThread
-                this.view = makeView(new Discussion(this.threads), {profilePage: true});
+            it('should display every thread as read if hideReadState: true is passed to the constructor', function() {
+                this.view = makeView(new Discussion(this.threads), {hideReadState: true});
                 this.view.render();
                 expect(this.view.$('.never-read').length).toEqual(0);
             });
 
-            it('does not show the "x new" indicator for any thread if profilePage is passed', function() {
-                // @TODO: This is temporary, see comment in DiscussionThreadListView.prototype.renderThread
-                this.view = makeView(new Discussion(this.threads), {profilePage: true});
+            it('does not show the "x new" indicator for any thread if hideReadState: true is passed', function() {
+                this.view = makeView(new Discussion(this.threads), {hideReadState: true});
                 this.view.render();
                 expect(this.view.$('.forum-nav-thread-unread-comments-count').length).toEqual(0);
             });

common/static/common/templates/discussion/thread-list-item.underscore

-<li data-id="<%- id %>" class="forum-nav-thread<% if (neverRead) { %> never-read<% } %>">
+<li data-id="<%- id %>" class="forum-nav-thread<% if (!hideReadState && neverRead) { %> never-read<% } %>">
   <a href="<%- threadUrl %>" class="forum-nav-thread-link">
     <div class="forum-nav-thread-wrapper-0">
       <%
@@ -75,7 +75,7 @@
       %>
       </span>
 
-      <% if (!neverRead && unread_comments_count > 0) { %>
+      <% if (!hideReadState && !neverRead && unread_comments_count > 0) { %>
         <span class="forum-nav-thread-unread-comments-count">
           <%-
             StringUtils.interpolate(

lms/djangoapps/discussion/static/discussion/js/views/discussion_user_profile_view.js

@@ -40,9 +40,9 @@
                         el: this.$('.inline-threads'),
                         courseSettings: this.courseSettings,
                         hideRefineBar: true,  // TODO: re-enable the search/filter bar when it works correctly
-                        // TODO: remove. Used temporarily to disable read state on profile page. See comment in
-                        // discussion_thread_list_view.js / DiscussionThreadListView.prototype.renderThread
-                        profilePage: true
+                        // @TODO: On the profile page, thread read state for the viewing user is not accessible via API.
+                        // Fix this when the Discussions API can support this query. Until then, hide read state.
+                        hideReadState: true
                     }).render();
 
                     this.discussionThreadListView.on('thread:selected', _.bind(this.navigateToThread, this));