anchor.diff:        <div class="form-group">
           <%= f.label :trial_length, 'Trial Length', :class => 'col-sm-3 control-label' %>
           <div class="col-sm-4">
  -          <%= f.text_field :trial_length, :value => 0, :class => 'form-control' %>
  +          <%= f.number_field :trial_length, :class => 'form-control', :value => 0 %>
           </div>
         </div>
         <div class="form-group">
  
positive.code:       <div class="form-group">
          <%= f.label :product_name, 'Product Name', :class => 'col-sm-3 control-label' %>
          <div class="col-sm-4">
            <%= f.text_field :product_name, :class => 'form-control', :known_base => @available_base_products.join(","), :known_ao => @available_ao_products.join(","), :known_std => @available_standalone_products.join(","), :ao_mappings => @ao_mapping %>
          </div>
        </div>
        <div class="form-group">
          <%= f.label :plan_id, 'Plan Name', :class => 'col-sm-3 control-label' %>
          <div class="col-sm-4">
            <%= f.text_field :plan_id, :class => 'form-control' %>
          </div>
        </div>
        <div class="form-group" id="form_base_products">
  
negative.code:       <div class="form-group">
          <%= f.label :amount, 'Amount', :class => 'col-sm-3 control-label' %>
          <div class="col-sm-4">
            <%= f.number_field :amount, :class => 'form-control', :value => 0, :step => :any %>
          </div>
        </div>
        <div class="form-group">
  