Question

我正在尝试实现基于Railscast＃88的动态选择，但无济于事。我上下搜索但没有成功。

我有Staff，Question和Redesignation型号。

class Staff < ApplicationRecord
  belongs_to :redesignation
  belongs_to :question
end

class Question < ApplicationRecord
  has_many :redesignations
  has_many :staffs
end

class Redesignation < ApplicationRecord
  has_many :staffs
  belongs_to :question
end

在创建新员工的_form部分中，当选择一个问题时，将相应地填充重新指定。

<%= f.label :question_id,'Do you feel you are in the right designation?' %>
  <%= f.collection_select :question_id, Question.order(:name), :id, :name, 
include_blank: true %>

  <%= f.label :redesignation, 'Proposed Redesignation' %>
  <%= f.grouped_collection_select :redesignation_id, Question.order(:name), 
:redesignations, :name, :id, :redesignation, include_blank: true %>

这是staffs.coffee中的jQuery：

jQuery ->
  $('#staff_redesignation_id').parent().hide()
  redesignations = $('#staff_redesignation_id').html()
  $('#staff_question_id').change ->
  question = $('#staff_question_id :selected').text()
  escaped_question = question.replace(/([ #;&,.+*~\':"!^$[\]()=>|\/@])/g, 
  '\\$1')
  options = $(redesignations).filter("optgroup[label='# 
{escaped_question}']").html()
if options
  $('#staff_redesignation_id').html(options)
  $('#staff_redesignation_id').parent().show()
else
  $('#staff_redesignation_id').empty()
  $('#staff_redesignation_id').parent().hide()

尽管我付出了最大努力，但我还没有看到光明。我可能会出错的任何想法？

编辑：这是我缩进的图片：enter image description here

Rails动态选择在Rails 5中不起作用（Railcasts＃88）

0 个答案: