为了让我的rails html更具可读性，我将其中的几个部分提取为部分。然后我使用jquery渲染部分。问题在于，现在表格已全部“脱钩”可以这么说，这意味着当我尝试提交表单时，它就好像部分不存在一样。我怀疑我并不了解表单是如何工作的，因为在与此相关的其他答案中似乎甚至没有解决表单构建器。
This SO question似乎与我想做的事情有关，但我认为我太没经验无法正确掌握它
我到目前为止的代码如下：
/assets/javascripts/work_order.js
$(document).ready(function(){
$('.best_in_place').best_in_place();
$('#work_order_dueDate').datepicker();
$.datepicker.setDefaults({ dateFormat: 'dd-mm-yy'});
var selection_made = false
$('#work_order_project_type_id').change(function(){
if (!selection_made){
selection_made = true
var selection = $(this).find('option:selected').text();
if (selection == "Variable Data Mailing"){
$.get('/presort_informations/new');
$.get('/printing_instructions/new');
}
else if (selection == "Mailing"){
$.get('/presort_informations/new');
}
else if (selection == "Print Job"){
$.get('/printing_instructions/new');
}
}
});
});
然后
/views/work_orders/_form.html.erb
<%= form_for(@workorder) do |f| %>
<% if @workorder.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(@workorder.errors.count, "error") %> prohibited this workorder from being saved:</h2>
<ul>
<% @workorder.errors.full_messages.each do |message| %>
<li><%= message %></li>
<% end %>
</ul>
</div>
<% end %>
<fieldset class="general-info">
<legend>General</legend>
<div class="col-md-12">
<div class="col-md-3">
<div class="form-group">
<%= f.label :Job_Title, class: "control-label" %>
<%= f.text_field :title, class:"form-control" %>
</div>
<div class="form-group">
<%= f.label :Project_Type, class: "control-label" %>
<%= f.collection_select(:project_type_id, ProjectType.all, :id, :name, {:prompt => true}, {:class => "form-control"}) %>
</div>
</div>
<div class="col-md-3">
<div class="form-group">
<%= f.label :Rep, class: "control-label" %>
<%= f.text_field :rep, class:"form-control" %>
</div>
<div class="form-group">
<%= f.label :Labels, class: "control-label" %>
<%= f.collection_select(:labels_id, Labels.all, :id, :name, {:prompt => true}, {:class => "form-control"}) %>
</div>
</div>
<div class="col-md-3">
<div class= "form-group">
<%= f.label :Due_Date, class: "control-label" %>
<%= f.text_field :dueDate, class: "form-control" %>
</div>
<div class="form-group">
<%= f.label :Project_Description, class: "control-label" %>
<%= f.text_area :projectDescription, class: "form-control" %>
</div>
</div>
</div>
</fieldset>
<fieldset class="presort-information">
</fieldset>
<div class="col-md-6 printing">
</div>
<fieldset class="production-details">
<legend>Production</legend>
<%= f.fields_for :production_details, ProductionDetails.new do |ff| %>
<%end%>
</fieldset>
<%= f.hidden_field(:number, :value => @workorder.number) %>
<%= f.hidden_field(:client_id, :value => @workorder.client_id) %>
<%= f.submit(class: "btn btn-default") %>
<% end %>
并作为其中一个部分的例子：
/app/views/presort_informations/new.js.erb
$('.presort-information').append( '<%= j render("presort_informations/form") %>' );
/app/views/presort_informations/_form.html.erb
<legend>Mailing</legend>
<%= fields_for :presort_information, PresortInformation.new do |ff| %>
.
.
.
<% end %>
我不确定如何将所有内容组合在一起，以便我可以根据选择框加载部分内容，然后将它们全部作为一个表单提交。
修改 我发现this SO question处理同样的问题，但我怀疑因为我在页面加载后渲染了部分，所以我再也无法访问表单生成器变量了。
$('.presort-information').append( '<%= j render("presort_informations/form", f: f) %>' );
在调用时给出一个未定义的变量错误。我仍然不确定如何弥合jquery和rails之间的这种差距。
答案 0 :(得分：0)
原来这是一个相对（如果对我来说是概念性的）简单修复 首先，将每个DOM部分加载到隐藏部分。
<%= form_for(@workorder) do |f| %>
<% if @workorder.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(@workorder.errors.count, "error") %> prohibited this workorder from being saved:</h2>
<ul>
<% @workorder.errors.full_messages.each do |message| %>
<li><%= message %></li>
<% end %>
</ul>
</div>
<% end %>
<fieldset id="general-info-partial">
<%=render("genInfo", f: f)%>
</fieldset>
<fieldset id="presort-information-partial">
<%=render("presort_informations/form", f: f)%>
</fieldset>
<div class="col-md-6">
<fieldset id="printing-information-partial">
<%=render("printing_instructions/form", f: f)%>
</fieldset>
</div>
<fieldset id="production-details-partial">
<%=render("production_details/form", f: f) %>
</fieldset>
<%= f.hidden_field(:number, :value => @workorder.number) %>
<%= f.hidden_field(:client_id, :value => @workorder.client_id) %>
<input type="submit" value="Submit" class="btn btn-default">
<% end %>
<div id="hidden-general-info" class="hidden"></div>
<div id="hidden-presort-information" class="hidden"></div>
<div id="hidden-printing-information" class="hidden"></div>
然后将Javascript移入和移出表单：
$(document).ready(function(){
$('.best_in_place').best_in_place();
$('#work_order_dueDate').datepicker();
$.datepicker.setDefaults({ dateFormat: 'dd-mm-yy'});
var presortFields = $('#presort-information-partial');
var printingFields = $('#printing-information-partial');
var presortHidden = $('#hidden-presort-information');
var printingHidden = $('#hidden-printing-information');
presortHidden.html(presortFields.html());
presortFields.html('');
printingHidden.html(printingFields.html());
printingFields.html('');
$('#work_order_project_type_id').change(function(){
var selection = $(this).find('option:selected').text();
if (selection == "Variable Data Mailing"){
if (printingFields.html() == '' && presortFields.html() == ''){
printingFields.html(printingHidden.html()).hide().slideDown();
presortFields.html(presortHidden.html()).hide().slideDown();
}
else if(printingFields.html() == '' && !(presortFields.html() == '')){
printingFields.html(printingHidden.html()).hide().slideDown();
}
else if(!(printingFields.html() == '') && presortFields.html() == ''){
presortFields.html(presortHidden.html()).hide().slideDown();
}
}
else if (selection == "Mailing"){
if(!(printingFields.html() == '')){
printingFields.slideUp();
printingFields.html('');
presortFields.html(presortHidden.html()).hide().slideDown();
}else{
presortFields.html(presortHidden.html()).hide().slideDown();
}
}
else if (selection == "Print Job"){
printingFields.html(printingHidden.html()).hide().slideDown();
presortFields.slideUp();
presortFields.html('');
}
});
基本上，我的想法是将所有内容加载，就像我要使用它一样，然后将部分移动到DOM的隐藏部分，然后使用JS将它们放回到用户创建时选择