注： 此文适用于Drupal8及以上版本
- 显示block到特定twig中
如果覆写的是page模板，需要在YourTheme_preprocess_page或YourTheme_preprocess_pageName中把block加载进去，这里演示的是一个block嵌入另一个block中
// your_theme.theme
/**
* HOOK THEME_preprocess_block
*
* @param $variables
*/
function YourTheme_preprocess_block__xx_xx_pagetitle(&$variables) {
$breadcrumbs = \Drupal\block\Entity\Block::load('my_breadcrumbs_block_id');
$variables['my_breadcrumbs'] = \Drupal::entityTypeManager()
->getViewBuilder('block')
->view($breadcrumbs);
}
<!-- block--xx-xx-pagetitle.html.twig -->
<div class="page-title-and-breadcrumbs">
<div{{ attributes }}>
{{ title_prefix }}
{% if label %}
<h2{{ title_attributes }}>{{ label }}</h2>
{% endif %}
{{ title_suffix }}
{% block content %}
{{ content }}
{% endblock %}
</div>
{{ my_breadcrumbs }}
</div>
- 隐藏block
function YourTheme_preprocess_html(&$var) {
//dump($var);
//可以根据页面，或者根据用户权限来控制block是否显示
if (!$var['is_admin']) {
unset($var['page']['header']['my_breadcrumbs']);
}
}
