我有一个注册表单，允许锦标赛主管选择他们在参与者注册锦标赛时将要求的字段。我按照 Go Rails 上的视频使用刺激 JS 将动态嵌套表单字段添加到表单中，效果很好。
我正在尝试在表单的另一部分中添加第二组字段。该表格分为部分，基本信息，联系信息，比赛信息等，我希望能够向每个部分添加自定义字段。
在基本部分它工作得很好。我可以添加和删除自定义字段，但是当我将它添加到联系人部分时，即使将嵌套表单更改为嵌套联系人，它也只会在我在基本部分中创建的字段中添加。我可以从任一部分添加和删除，但它只是在两个部分中都显示它们。
这是我现在的表格。我仍然需要添加其他部分，但在添加表单的其余部分之前，我试图让基本和联系人自定义字段正常工作：
<h4>Athlete Information</h4>
<%= form_with(model: @event, class: "shadow p-3 mb-3 rounded text-dark", local: true) do |f| %>
<%= f.hidden_field :athlete_info_complete, value: 1 %>
<%= f.hidden_field :next, value: 6 %>
<div class="row club_container">
<div class="col-12">
<legend>
Check all the boxes next to the information you would like to
request from your tournament participants. Each area will have an option
to add custom fields.
</legend>
<br><br>
<h4>Basic Information</h4>
<div class="form-group row">
<div class="col-md-9 col-sm-12">
<label class="main">First Name
<%= f.check_box :first_name %>
<span class="w3docs"></span>
</label>
<label class="main">Last Name
<%= f.check_box :last_name %>
<span class="w3docs"></span>
</label>
<label class="main">Date of birth
<%= f.check_box :dob %>
<span class="w3docs"></span>
</label>
</div>
</div>
<h4>Custom Fields</h4>
<small>
Enter the name of your custom field you plan to offer.
</small>
<br><br>
<div data-controller="nested-form">
<template data-target="nested-form.template">
<%= f.fields_for :fields, Field.new, child_index: 'NEW_RECORD' do |field| %>
<%= render 'events/forms/custom_fields_basic', f: field %>
<% end %>
</template>
<%= f.fields_for :fields do |field| %>
<%= render 'events/forms/custom_fields_basic', f: field %>
<% end %>
<div class="mb-3" data-target="nested-form.links">
<%= link_to 'Add Custom Field', "#", class: "btn btn-outline-dark", data: { action: "click->nested-form#add_association" } %>
</div>
</div>
<h4>Contact Information</h4>
<div class="form-group row">
<div class="col-md-9 col-sm-12">
<label class="main">Address 1
<%= f.check_box :address1 %>
<span class="w3docs"></span>
</label>
<label class="main">Address 2
<%= f.check_box :address2 %>
<span class="w3docs"></span>
</label>
<label class="main">City
<%= f.check_box :city %>
<span class="w3docs"></span>
</label>
</div>
</div>
<div data-controller="nested-contacts">
<template data-target="nested-contacts.template">
<%= f.fields_for :fields, Field.new, child_index: 'NEW_RECORD' do |field| %>
<%= render 'events/forms/custom_fields_contact', f: field %>
<% end %>
</template>
<%= f.fields_for :fields do |field| %>
<%= render 'events/forms/custom_fields_contact', f: field %>
<% end %>
<div class="mb-3" data-target="nested-contacts.links">
<%= link_to 'Add Custom Field', "#", class: "btn btn-outline-dark", data: { action: "click->nested-contacts#add_association" } %>
</div>
</div>
<div class="form-group row">
<div class="col-md-9 col-sm-12"></div>
<div class="col-md-3 col-sm-12">
<button id="button_next" class="profile_btn align-middle" style="width:180px;">Finalize <span style="margin-top: 5px; font-size: 18px;"><i class="fas fa-long-arrow-alt-right"></i></span></button>
</div>
</div>
</div>
</div>
<% end %>
这是 _custom_fields_basic.html.erb
<%= content_tag :div, class: 'nested-fields', data: { new_record: f.object.new_record? } do %>
<div class="form-group row">
<div class="col-md-3 col-sm-12 col-form-label">
<%= f.label :field_name %>
</div>
<div class="col-md-9 col-sm-12">
<%= f.text_field :name, class: 'form-control' %>
<small><%= link_to 'Remove', '#', data: { action: 'click->nested-form#remove_association' } %></small>
</div>
</div>
<%= f.hidden_field :field_type, value: 'basic' %>
<%= f.hidden_field :_destroy %>
<% end %>
这是 custom_fields_contact.html.erb 文件：
<%= content_tag :div, class: 'nested-contacts', data: { new_record: f.object.new_record? } do %>
<div class="form-group row">
<div class="col-md-3 col-sm-12 col-form-label">
<%= f.label :field_name %>
</div>
<div class="col-md-9 col-sm-12">
<%= f.text_field :name, class: 'form-control' %>
<small><%= link_to 'Remove', '#', data: { action: 'click->nested-contacts#remove_association' } %></small>
</div>
</div>
<%= f.hidden_field :field_type, value: 'contact' %>
<%= f.hidden_field :_destroy %>
<% end %>
这是 nexted_form_controller.js
import { Controller } from "stimulus"
export default class extends Controller {
static targets = [ "links", "template" ]
connect() {
}
add_association(event) {
event.preventDefault()
var content = this.templateTarget.innerHTML.replace(/NEW_RECORD/g, new Date().getTime())
this.linksTarget.insertAdjacentHTML('beforebegin', content)
}
remove_association(event) {
event.preventDefault()
let wrapper = event.target.closest(".nested-fields")
if (wrapper.dataset.newRecord == "true") {
wrapper.remove()
} else {
wrapper.querySelector("input[name*='_destroy']").value = 1
wrapper.style.display = 'none'
}
}
}
还有nested_contacts_controller.js：
import { Controller } from "stimulus"
export default class extends Controller {
static targets = [ "links", "template" ]
connect() {
}
add_association(event) {
event.preventDefault()
var content = this.templateTarget.innerHTML.replace(/NEW_RECORD/g, new Date().getTime())
this.linksTarget.insertAdjacentHTML('beforebegin', content)
}
remove_association(event) {
event.preventDefault()
let wrapper = event.target.closest(".nested-contacts")
if (wrapper.dataset.newRecord == "true") {
wrapper.remove()
} else {
wrapper.querySelector("input[name*='_destroy']").value = 1
wrapper.style.display = 'none'
}
}
}
如果有办法用一个控制器来做这件事会很棒，但如果有必要，我可以为每个部分设置单独的控制器。
谢谢