Add helper which convert singular and plural.

src/main/scala/view/helpers.scala

@@ -18,6 +18,13 @@ object helpers {
    */
   def date(date: Date): String = new SimpleDateFormat("yyyy-MM-dd").format(date)
 
+  /**
+   * Returns singular if count is 1, otherwise plural.
+   * If plural is not specified, returns singular + "s" as plural.
+   */
+  def plural(count: Int, singular: String, plural: String = ""): String =
+    if(count == 1) singular else if(plural.isEmpty) singular + "s" else plural
+
   /**
    * Converts Markdown of Wiki pages to HTML.
    */

src/main/twirl/issues/issue.scala.html

@@ -117,11 +117,7 @@
         <span class="label label-success issue-status">Open</span>
       }
       <div class="small" style="text-align: center;">
-        @if(comments.size == 1){
-          <strong>1</strong> comment
-        } else {
-          <strong>@comments.size</strong> comments
-        }
+        <strong>@comments.size</strong> @plural(@comments.size, "comment")
       </div>
       <hr/>
       <div style="margin-bottom: 8px;">

src/main/twirl/issues/list.scala.html

@@ -176,12 +176,7 @@
             <span class="pull-right muted">#@issue.issueId</span>
             <div class="small muted">
               Opened by <a href="@url(issue.openedUserName)" class="username">@issue.openedUserName</a> @datetime(issue.registeredDate)&nbsp;
-              @if(commentCount == 1){
-                <i class="icon-comment"></i><a href="@url(repository)/issues/@issue.issueId" class="issue-comment-count">1 comment</a>
-              }
-              @if(commentCount > 1){
-                <i class="icon-comment"></i><a href="@url(repository)/issues/@issue.issueId" class="issue-comment-count">@commentCount comments</a>
-              }
+              <i class="icon-comment"></i><a href="@url(repository)/issues/@issue.issueId" class="issue-comment-count">@commentCount @plural(commentCount, "comment")</a>
             </div>
           </td>
         </tr>