javascript - 如何通过 JavaScript 检查用户是否在 Drupal 站点中登录？

Question

我知道如何检查用户是否通过 PHP 登录，但是当事件发生时我需要做一些样式，我为此创建了一个单独的 JavaScript 文件。这是一个 Drupal 变量还是我也可以引用的东西？

Answer 1

使用hook_init实现创建一个新的自定义模块。

function [YOUR_MODULE]_init()
{
    global $user;
    drupal_add_js(array('user_js_uid' => $user->uid), 'setting');
}

然后在您的 javascript 代码中，检查模块中定义的变量的值user_js_uid。

if(Drupal.settings.user_js_uid == 0)
{
    // execute code for non logged in users
}
else
{
    // execute code for logged in users
}

Answer 2

如果您正在等待 DOM 准备好并使用标准生成的 Drupal CSS 类，您可以执行以下操作（使用 jQuery）：

if( $( "body.not-logged-in" ).length )
{
    // user is not logged in
}

Answer 3

For Drupal 8 if you use Drupal.behaviors, you can access the user UID in settings:

(function($, Drupal, viewport, settings) {
  "use strict";
  Drupal.behaviors.ifCE = { //the name of our behavior
    attach: function (context, settings) {
    var userUID = settings.user.uid;
    //your code...
  }
})(jQuery, Drupal, ResponsiveBootstrapToolkit, drupalSettings);

So if the userUID === 0 then your user is not connected.

Answer 4

The "not-logged-in" class doesn't seem to exist in vanilla Drupal 8. But there's "user-logged-in" instead. Here's one line of CSS I'm using to hide the custom "Register" menu item if a user is logged in:

body.user-logged-in a[href="/user/register"] {display: none; }