anchor.diff:    <div class="control-group">
       <%= f.label :purpose_id, :class => 'control-label' %>
       <div class="controls">
  -          <%= f.select :purpose_id,
  -            options_from_collection_for_select(@purposes, :id, :code, @suspension.purpose_id),
  +          <%= f.select :purpose_ids,
  +            options_from_collection_for_select(@purposes, :id, :code, @suspension.purpose_ids),
               { :include_blank => true },
  -            {:class => 'suspension select2', :style => 'width: 220px' }
  +            {:class => 'suspension select2', :multiple => true, :style => 'width: 220px' }
             %>
       </div>
     </div>
  
positive.code:   <div class="control-group">
      <%= f.label :source_id, :class => 'control-label'  %>
      <div class="controls">
        <%= f.select :source_id,
          options_from_collection_for_select(@sources, :id, :code, @suspension.source_id),
          { :include_blank => true },
          {:class => 'suspension select2', :style => 'width: 220px' }
        %>
      </div>
    </div>
  
negative.code:   <div class="control-group">
      <%= f.label :term_id, :class => 'control-label' %>
      <div class="controls">
        <%= f.select :term_ids,
          options_from_collection_for_select(@terms, :id, :code, @suspension.term_ids),
          { :include_blank => true },
          {:class => 'suspension select2', :multiple => true, :style => 'width: 220px' }
        %>
      </div>
    </div>
  