view
<div class='col-xs-2'>
<%= f.search_field :order_num_or_order_type_text_cont, :placeholder=> "搜索客人手机号/交易商品货号", :id=>"search_text", class: "form-control"%>
</div>
undefined method `order_num_or_order_type_text_cont' for #Ransack::Search:0x0000000585d950
为什么会错误呢
<%= f.text_field :discountable_of_Brand_type_name_or_discountable_of_Shop_type_name_cont, class: 'form-control', placeholder: '品牌/店铺' %>