Question

我有一个名为cattle finances的表单，在这种形式中，我使用集合选择输入批号，我有其他表格列显示在_form.html.erb代码下面

 <%= simple_form_for @cattle_finance, remote: true do |f|   %>
 <% if @cattle_finance.errors.any? %>
    <div id="error_explanation">
      <h2><%= pluralize(@cattle_finance.errors.count, "error") %> prohibited this cattle_finance from being saved:</h2>

      <ul>
      <% @cattle_finance.errors.full_messages.each do |message| %>
        <li><%= message %></li>
      <% end %>
      </ul>
</div>
  <% end %>
  <br>
   <%= f.collection_select :batch_number, CattleList.all, :batch_number, :batch_number, :prompt => "please select Batch Number"  %></br>
   <%= f.input  :total_litres_of_batch, as: :integer %>
   <%= f.input  :total_income, as: :integer %>
   <%= f.input  :gross_income, as: :integer %>
   <%= f.input  :total_expenses, as: :integer %>
   <%= f.input  :net_income, as: :integer %>
   <%= f.input  :date,    as: :date %>
   <%= f.button :submit %>
 <% end %>

我的index.html.erb代码是

 <div class="row">
   <div class="col-md-5 col-md-offset-1">
     <h2>Cattle Finances</h2>
   </div>

 <div class"btn-group menu2" align = right>
 <%= link_to raw("<span class=''></span> Creditors"), cattle_creditors_path, :class=>"btn btn-default" %>
 <%= link_to raw("<span class=''></span> Debtors"), cattle_debtors_path, :class=>"btn btn-default" %>
 <%= link_to raw("<span class=''></span> Cattle"), cattles_path, :class=>"btn btn-default" %>
 <%= link_to "Home", root_path, :class=>"btn btn-default" unless current_page?(root_url) %>


 </div>

   <div class="col-md-2 col-md-offset-4">
     <%= link_to new_cattle_finance_path, remote: true do %>
       <button class="btn btn-default">New</button>
     <% end %>
   </div>
 </div>

 <div class="row">
   <div class="col-md-6 col-md-offset-2" id="cattle_finance-form" style="display:none;"></div>
 </div>

 <div class="row">
   <div class="" id="cattle_finances"><%= render @cattle_finances %></div>
 </div>

所以需要帮助的是我可以选择特定batch_number的方式，并自动填充所有其他字段，或者从相应的数据库表中分别从数据库中挑选并填写。尽管如此，任何帮助他高度赞赏的因素都会被卡住我知道我想做什么，我不知道如何开始。

Ruby on rails：根据ajax中的一个字段从数据库中自动填充表单的代码

0 个答案: