Rails多重复选框，带有下拉列表 [英] Rails Multiple Check Box with drop down list

问题描述

我已经创建了一个关联的模型来创建一个复选框列表，用户可以在其中选择他/她所说的语言。我试图使用选择和选择2，但不能使其工作。问题可能是因为我使用 check_box_tag

这是我的代码;

 <％= hidden_​​field_taguser [language_ids] []，nil％> 
<％Language.all.each do | language | ％GT; 
<％= check_box_taguser [language_ids] []，language.id，@ user.language_ids.include？（language.id），id：dom_id（language）％> 
<％= label_tag dom_id（language），language.name％> < / BR> 
<％end％> 
  

我看过Railscast Habtm视频来创建这个。这只是工作正常，但我想使其用户友好。谢谢

解决方案

您需要呈现< select> 标签而不是复选框：

  form_for @user do | f | 
 f.select_taglanguage_ids，options_from_collection_for_select（Language.all，id，name）
  

那么你可以调用这个DOM元素的 $（..）。select2（）

I have created an associated models to create a check box list, where user can select languages that he/she speaks. I have tried to use both Chosen and Select2 but could not make it work. The problem might be because I use check_box_tag

Here is my code;

<%= hidden_field_tag "user[language_ids][]", nil %>
    <% Language.all.each do |language| %>
    <%= check_box_tag "user[language_ids][]", language.id, @user.language_ids.include?(language.id), id: dom_id(language) %>
    <%= label_tag dom_id(language), language.name %> </br>
    <% end %> 

I have watched the Railscast Habtm video to create this. This just works fine but I would like to make it user friendly. Thank you

解决方案

You need to render a <select> tag instead of checkboxes:

form_for @user do |f| 
  f.select_tag "language_ids", options_from_collection_for_select(Language.all, "id", "name")

then you can call $(..).select2() on that DOM element

这篇关于Rails多重复选框，带有下拉列表的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！