我在我的View中有一个表单,有两个下拉列表,都是从db表填充的,我想在下拉列表中发生onchange事件时自动提交表单:
<%= form_for @products,url: products_path,method: :get do |f| %> <!-- POPULATE DROPDOWNS FROM DB DATA --> <%= select('post','state',@suppliers.collect {|s| [s.supp_state,s.id]}) %> <%= select('post','category_id',@categories.collect {|c| [c.cat_name,c.id]}) %> <div class='actions inline'><%= f.submit 'GO!' %></div> <% end %>
我尝试了以下的变体,但我在Ruby / Rails / JS上很新..到目前为止没有运气:
<%= select('post',s.id]},:onchange => "this.form.submit()") %> <%= select('post',:input_html => {:onchange => "this.form.submit()") %>
任何意见是极大的赞赏!
解决方法
参见文档:
http://api.rubyonrails.org/classes/ActionView/Helpers/FormOptionsHelper.html#method-i-select
论点是这样的:
select(object,method,choices,options = {},html_options = {})
:onchange属于html选项,因此您需要将选择框修复为:
select('post',:onchange => "this.form.submit()")