如何将变量传递给视图外部的模型?问题是,我必须将模型移至application.html.erb
,因为z-index conflicts在products/index.html.erb
视图中有模态代码。
例如,我想将<%= product.id %>
变量传递给模态弹出窗口。
<% products.each do |product| %>
<button type="button" class="btn btn-primary btn-lg" data-toggle="modal" data-target="#productDetails" productId="<%= product.id %>">
Launch <%= product.id %>
</button>
<% end %>
<!DOCTYPE html>
<html>
<head>
<title>Test</title>
<%= stylesheet_link_tag 'application' %>
<%= javascript_include_tag 'application', 'data-turbolinks-track' => true %>
<%= csrf_meta_tags %>
</head>
<body>
<div id="page-wrapper">
<%= render 'layouts/header' %>
<%= yield %>
<%= render 'layouts/footer' %>
</div>
<!-- Modal -->
<div class="modal fade" id="productDetails" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
<h4 class="modal-title" id="myModalLabel">Modal title</h4>
</div>
<div class="modal-body product-content">
...
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary">Save changes</button>
</div>
</div>
</div>
</div>
</body>
</html>
我尝试添加javascript来传递变量,但没有出现任何内容:
<script>
$('#productDetails').on('show.bs.modal', function(e) {
var $modal = $(this),
productId = e.relatedTarget.productId;
$.ajax({
cache: false,
type: 'POST',
url: 'backend.php',
data: 'EID=' + productId,
success: function(data) {
$modal.find('.product-content').html(productId);
}
});
})
</script>
我还尝试在products/index.html
中添加部分内容,但由于z-index冲突,无法在products/index.html.erb
内调用模式。
答案 0 :(得分:1)
我不知道php部分是什么。但是,忽略那个部分,并假设没有人会这样做,这就是你在rails中处理这个问题的方法:
使用link_to(类似这样)使按钮成为远程方法调用:
<% products.each do |product| %>
<%= link_to 'Launch', product, { data: { toggle: 'modal', target: '#productDetails' }, class: 'btn btn-primary btn-lg', remote: true } %>
<% end %>
为show called products / show.js.erb创建js.erb文件(假设@product在控制器中定义):
$('#productDetails').html("<%= j render partial: 'show', locals: { product: @product } %>");
将所有内容从模态div下移到产品/ _show.html.erb partial:
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
<h4 class="modal-title" id="myModalLabel">Modal title</h4>
</div>
<div class="modal-body product-content">
...
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary">Save changes</button>
</div>
</div>