java - 如何将对象传递给 Thymeleaf 中的模态对话框？

Question

我有一个 thymeleaf 页面，它在表格中显示数据库内容(人员)。

<tr id="tableBody">
    <td th:text="${row.id}"/>
    <td th:text="${row.firstname}"/>
    <td th:text="${row.lastname}"/>
    <td>
        <button data-toggle="modal" data-target="#editModal" th:data-row="${row}">DEL</button>
    </td>
</tr>

最后一列应该是一个删除行的按钮。但在此之前，显示一个包含正在删除的数据的模式对话框。

问题:如何将整行人物对象传递给模态对话框？

我是这样开始的，但是我错过了如何将被点击的行中的人物对象作为对象传递到模态对话框中(这样我就可以在模式对话框)。

以下是一种伪代码:

<div class id="editModal" ...>
  <div class="modal-body">
    <div class="modal-body">
       You are about to delete: <div th:text="${row.firstname}"/> <div th:text="${row.lastname}"/>

       <form action="#" th:action="@{/delete/{id}" th:object="${row}" method="delete">
          <input type="text" hidden="true" th:field="${row.id}">
       </form>
    </div>

    <div class="modal-footer">
        <button type="button" class="btn btn-secondary" data-dismiss="modal">Cancel</button>
        <button type="submit" class="btn btn-primary" th:href="@{/delete/{id}(id=${row.id})}" th:method="delete">Remove</button>
    </div>
  </div>
</div>

Answer 1

纯 thymeleaf

要在纯 thymeleaf 中执行此操作，您需要为表中的每一行创建一个具有唯一 ID 的对话框，并打开与要删除的行关联的对话框。

模态框示例:

<div th:each="row : ${rows}" th:attr="id=${'editModal' + row.id}">
  <div class="modal-body">
    <div class="modal-body">
       You are about to delete: <div th:text="${row.firstname}"/> <div th:text="${row.lastname}"/>

       <form action="#" th:action="@{/delete/{id}" th:object="${row}" method="delete">
          <input type="text" hidden="true" th:field="${row.id}">
       </form>
    </div>

    <div class="modal-footer">
        <button type="button" class="btn btn-secondary" data-dismiss="modal">Cancel</button>
        <button type="submit" class="btn btn-primary" th:href="@{/delete/{id}(id=${row.id})}" th:method="delete">Remove</button>
    </div>
  </div>
</div>

打开对话框的按钮变为:

<button data-toggle="modal" th:attr="data-target=${'#editModal'+row.id}" data-row="${row}">DEL</button>

---

使用 javascript

如果您可以使用 javascript，我建议您使用 thymeleaf 仅创建模态对话框的模板，然后克隆它并动态填充它。

模态示例:

<div class id="editModalTemplate">
  <div class="modal-body">
    <div class="modal-body">
       You are about to delete: <div data-value="firstname"/> <div data-value="lastname"/>

       <form action="#" th:action="@{/delete/_id_}" method="delete">
          <input type="text" hidden="true" name="id">
       </form>
    </div>

    <div class="modal-footer">
        <button type="button" class="btn btn-secondary" data-dismiss="modal">Cancel</button>
        <button type="submit" class="btn btn-primary" th:href="@{/delete/{id}(id='_id_')}" th:method="delete">Remove</button>
    </div>
  </div>
</div>

删除按钮:

<button class="btn-delete" data-id=${row.id} data-firstname="${row.firstname}" data-lastname="${row.lastname}">DEL</button>

Javascript(以 jQuery 实现为例):

$('.btn-delete').click(function(){
    //clone dialog and remove ids to ensure uniqueness
    var $modal = $('#editModalTemplate').clone().removeAttr('id');

    //apply custom values where needed
    var $btn = $(this);
    var rowId = $btn.attr('data-id');
    var firstname = $btn.attr('data-firstname');
    var lastname = $btn.attr('data-lastname');

    $modal.find('[data-value="firstname"]').text(firstname );
    $modal.find('[data-value="lastname"]').text(lastname );
    $modal.find('[name="id"]').val($btn.attr('data-id'));
    $modal.find('form').attr('action').replace('_id_', rowId);     
    $modal.find('button[type="submit"]').attr('href', $modal.find('button[type="submit"]').attr('href').replace('_id_', rowId);

    //show dialog
    $modal.modal();
});