anchor.diff:            <select id="select-mission" name="missions[<%= mission.id %>][dependent_id]" class="input-medium">
               <option value="0" >No Dependency</option>
               <%= (@missions - [mission]).each do |asm| %>
  -                <option value="<%= asm.id %>" <%= 'selected' if asm == mission.dependent_mission %>><%= asm.title %></option>
  +                <option value="<%= asm.id %>" <%= 'selected' if asm == mission.dependent %>><%= asm.title %></option>
               <% end %>
             </select>
           </td>
  
positive.code:   </tr>
    </thead>
    <tbody>
    <% @missions.each do |mission| %>
        <tr>
          <td>
            <input name="missions[<%= mission.id %>][title]" class="input-medium" type="text"  value="<%= mission.title %>" required>
  
negative.code:   <% end%>
    </tbody>
  </table>
  <div class="center">
    <button class="btn btn-large" style="width: 50%; font-weight: bold">Update</button>
  </div>
  <% end %>
  