如何使用 sweet alert 2 执行 rails 命令?

How to execute a rails command with sweet alert 2?

我有以下 sweet alert 2 消息:

<button onclick='
    Swal.fire({
      title: "Select a page you want to be redirected:",
      showDenyButton: true,
      showCancelButton: true,
      confirmButtonText: "Home",
      denyButtonText: "About",
    }).then((result) => {
      /* Read more about isConfirmed, isDenied below */
      if (result.isConfirmed) {
        Swal.fire("Saved!", "", "success");
      } else if (result.isDenied) {
        Swal.fire("Changes are not saved!", "", "info");
      }
    });
'>SHOW SWEET ALERT</button>

设计看起来工作正常,但问题是我无法执行 .erb 命令而不是显示另一个甜蜜的警报消息!

例如,如果我将上面的代码更改为以下代码,它会把一切都搞砸,我不知道是什么原因造成的!:

<button onclick='
    Swal.fire({
      title: "Select a page you want to be redirected:",
      showDenyButton: true,
      showCancelButton: true,
      confirmButtonText: "Home",
      denyButtonText: "About",
    }).then((result) => {
      /* Read more about isConfirmed, isDenied below */
      if (result.isConfirmed) {
        <%= link_to "Home Page", root_path, class:"navbar-brand" %>
      } else if (result.isDenied) {
        <%= link_to "About Page", home_about_path, class:"nav-link" %>
      }
    });
'>SHOW SWEET ALERT</button>

代码片段 2 将出现以下错误:Uncaught SyntaxError: Unexpected token '<'

第一个片段的图像示例:

第二个片段的图像示例:

实际上这是预期的行为。

如您在第二个屏幕截图中所见,ERB 解析器已在您的 JavaScript 代码中生成了正确的锚标记,从而导致语法错误。 (你不能在 JavaScript 中包含 HTML!当然,除非它们在字符串引号周围。)

你想做的是:

<button onclick='
    Swal.fire({
      title: "Select a page you want to be redirected:",
      showDenyButton: true,
      showCancelButton: true,
      confirmButtonText: "Home",
      denyButtonText: "About",
    }).then((result) => {
      /* Read more about isConfirmed, isDenied below */
      if (result.isConfirmed) {        
        location.pathname = "<%= root_path %>"
      } else if (result.isDenied) {
        location.pathname = "<%= home_about_path %>"
      }
    });
'>SHOW SWEET ALERT</button>

"location.pathname = x" 会将您定向到相对路径。

服务器的 ERB 解析器将用您要查找的路径替换 root_path 和 home_about_path 变量。