0
嵌套領域這是對以下問題的後續問題,主要是因爲我嘗試使用一些就可以瞭解決方案,並不能認爲我的出路:顯示/隱藏在新增加的領域
Change only the image inside same div when option from dropdown is chosen
鑑於有許多問題一個形式,你可以選擇設置的問題是選擇題,並添加答案的話,我有下列問題視圖(field_answers方法只呈現部分):
.nested-fields
= f.input :question
= f.input :type
#answers{:style => "display:none;"}
= f.simple_fields_for :answers do |m|
= field_answers(m)
%div{:class => "#links"}
= link_to_add_association '+', f, :answers, :partial => 'layouts/form/answers', :class => 'link-add-field'
= link_to_remove_association "remove question", f
以下爲answ ERS:
.fields.answers-nested-fields
#answer-field
= f.input :answer
= link_to_remove_association "-", f, { wrapper_class: 'answer-nested-fields', :class => 'link-add-field remove_nested_fields' }
我questions.js.coffee具有以下回調:
$('#type').change ->
if $(this).val() is "text"
$("#answers").hide()
else
$("#answers").show()
$(document).ready ->
$('#questions').on("cocoon:before-insert", (e, question_to_be_added) ->
question_to_be_added.fadeIn "slow"
).on("cocoon:after-insert", (e, added_question) ->
added_question.css "background", "red"
).on "cocoon:before-remove", (e, question) ->
# allow some time for the animation to complete
$(this).data "remove-timeout", 5000
question.fadeOut "slow"
的第一位是什麼工程,使回答的第一個問題顯示或隱藏,顯然這是行不通的與新增加的問題,因爲我想我會需要之前/之後插入回調來創建一個事件,其中顯示/隱藏答案字段被解僱,當問題類型被改爲任何非「文本」,所以我如何觀察關於問題類型屬性的更改事件?