用来自ajax call

时间:2015-11-05 14:50:21

标签: javascript ruby-on-rails jquery-select2

我有一个带有两个下拉列表的rails应用程序。当第一个选择“作者”时,它会进行ajax调用以检索作者的书。自动预订电话。

在我的javascript中:$.ajax(type: 'GET', url: myadress)

它呈现.js.erb文件:

var dropdown = "<%= escape_javascript(select_tag :author_book, options_from_collection_for_select(@books, :id, :serial), id: 'serial') %>";
var nextDiv = $('#author_book').next();
if(nextDiv.hasClass('select2')) {
    nextDiv.remove();
}
$('#author_book').remove();
$('#author').next().after(dropdown);
$('#author_book').select2();

haml文件如下所示:

#author
  = simple_form_for :author, url: author_path(store_id: current_store), html: {method: 'post', remote: true, id: nil, class: 'none'} do |f|

    #left-scheduled_publications-form
      = f.input_field :authors, collection: authors, required: true

      %br
      = select_tag :author_book, options_for_select([], params[:author_book]), required: true

但它打破了我的dom,它真的很难看。 It seems their is an issue related但也许我错了。

处理此问题的更好方法是什么?是否可以更轻松地替换数据?

1 个答案:

答案 0 :(得分:1)

将您的第二个选择放入部分:

<强> _author_book.haml.erb

= select_tag :author_book, options_from_collection_for_select(@books, :id, :serial), id: 'serial')

在视图中为动态内容添加封闭的div

#author
  = simple_form_for :author, url: author_path(store_id: current_store), html: {method: 'post', remote: true, id: nil, class: 'none'} do |f|

    #left-scheduled_publications-form
      = f.input_field :authors, collection: authors, required: true

      .author-books
        = select_tag :author_book, options_for_select([], params[:author_book]), required: true

在你的JS回复中:

$(".author-books").replaceWith("<%= escape_javascript(render: 'author_book') %>");
$('#author_book').select2();

理想情况下,您也希望将部分包含在表单的初始呈现中,您可以通过将@books设置为空数组来完成。