drupal_add_css，drupal_add_js不起作用 [英] drupal_add_css, drupal_add_js does not work

问题描述

我正在使用 drupal_add_css（）和 drupal_add_js（）将CSS和JavaScript文件添加到我的Drupal站点。我在一个名为control的模块中这样做，所以我使用的函数称为 control_preprocess_page（& $ vars）。

I am using drupal_add_css() and drupal_add_js() to add CSS and JavaScript files to my Drupal site. I am doing this in a module called control so the function I'm using is called control_preprocess_page(&$vars).

但是在我的主题中没有添加任何内容！

But in my theme nothing is added!

推荐答案

这些函数在preprocess_page（）功能是 template_preprocess_page（）（其中被称为第一）已经将结构化内容格式化为变量$ scripts和$ styles。如果要在预处理级别添加其他js或css，则需要重新生成2个变量，如下所示：

The reason these functions aren't working within the preprocess_page() function is that template_preprocess_page() (which is called first) has already formatted the structured content into variables $scripts and $styles. If you want to add additional js or css at the preprocess level, you need to regenerate those 2 variables, something like this:

function control_preprocess_page(&$vars) {
  // Add new CSS.
  drupal_add_css('path/to/css/foo.css');
  // Rebuild the 'styles variable.
  $vars['styles'] = drupal_get_css();

  // Add new JS.
  drupal_add_js(...);
  $vars['scripts'] = drupal_get_js();
}

在hook_init中使用drupal_add_js / drupal_add_css或更准确的目标函数（例如，一个更改钩子或nodeapi钩子（如果适用））将避免重新生成那些变量。

Using drupal_add_js/drupal_add_css in hook_init, or a more precisely targeted function (eg, an alter hook, or nodeapi hook, if applicable), will avoid having to regenerate those variables.

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