Issue #526 adding duration , removing letter e

tutor/app/views/contests/index.html.erb

@@ -3,12 +3,15 @@
 		style="width:180px;display:inline"><%= flash[:notice] %></div>
 <% end %>
 
+<h1> Your Contests </h1>
+
 <table class="table table-striped table-bordered table-responsive">
-	<% unless @contests.blank? %>
+	<% if @contests %>
 		<tr>
 			<td>Contests</td>
-			<td>start date</td>
-			<td>start time</td>
+			<td>Start date</td>
+			<td>Start time</td>
+			<td>Duration</td>
 			<td>Actions</td>
 		</tr>
 		<% @contests.each do |contest| %>
@@ -24,6 +27,9 @@
 				<td>
 					<h4><%= contest.start_time %></h4>
 				</td>
+				<td>
+					<h4><%= contest.end_time.to_i - contest.start_time.to_i / (60*60) %></h4>
+				</td>
 				<% if current_lecturer || current_teaching_assistant %>
 					<td>
 						<h4><%= link_to "Edit", "/edit/"+contest.id.to_s %></h4>
@@ -34,7 +40,7 @@
 								:id => contest.id,:method => :get, class:
 									"btn btn-success" %></h4>
 					</td>
-				<% end %>e					
+				<% end %>					
 			</tr>
 		<% end %>
 	<% else %>