<table>
<tr>
+ <th>Merchandise ID</th>
<% for column in Merchandise.content_columns %>
<th><%= column.human_name %></th>
<% end %>
<% for merchandise in @merchandises %>
<tr>
+ <td><%=h merchandise.id %></td>
<% for column in Merchandise.content_columns %>
<td><%=h merchandise.send(column.name) %></td>
<% end %>