我正在尝试对该树枝模板进行逆向工程，以回到最初设置变量的位置，以便我可以添加更多变量。这是一个Drupal8项目。树枝模板“ node--course.html.twig” 的开头如下所示。它是在其中看到设置变量的地方。
{#
/**
* @file
* Default theme implementation to display a node.
*
* Available variables:
* - node: Full node entity.
* - id: The node ID.
* - bundle: The type of the node, for example, "page" or "article".
* - authorid: The user ID of the node author.
* - createdtime: Time the node was published formatted in Unix timestamp.
* - changedtime: Time the node was changed formatted in Unix timestamp.
* - label: The title of the node.
* - content: All node items. Use {{ content }} to print them all,
* or print a subset such as {{ content.field_example }}. Use
* {{ content|without('field_example') }} to temporarily suppress the printing
* of a given child element.
* - author_picture: The node author user entity, rendered using the "compact"
* view mode.
* - metadata: Metadata for this node.
* - date: Themed creation date field.
* - author_name: Themed author name field.
* - url: Direct URL of the current node.
* - display_submitted: Whether submission information should be displayed.
* - attributes: HTML attributes for the containing element.
* The attributes.class element may contain one or more of the following
* classes:
* - node: The current template type (also known as a "theming hook").
* - node--type-[type]: The current node type. For example, if the node is an
* "Article" it would result in "node--type-article". Note that the machine
* name will often be in a short form of the human readable label.
* - node--view-mode-[view_mode]: The View Mode of the node; for example, a
* teaser would result in: "node--view-mode-teaser", and
* full: "node--view-mode-full".
* The following are controlled through the node publishing options.
* - node--promoted: Appears on nodes promoted to the front page.
* - node--sticky: Appears on nodes ordered above other non-sticky nodes in
* teaser listings.
* - node--unpublished: Appears on unpublished nodes visible only to site
* admins.
* - title_attributes: Same as attributes, except applied to the main title
* tag that appears in the template.
* - content_attributes: Same as attributes, except applied to the main
* content tag that appears in the template.
* - author_attributes: Same as attributes, except applied to the author of
* the node tag that appears in the template.
* - title_prefix: Additional output populated by modules, intended to be
* displayed in front of the main title tag that appears in the template.
* - title_suffix: Additional output populated by modules, intended to be
* displayed after the main title tag that appears in the template.
* - view_mode: View mode; for example, "teaser" or "full".
* - teaser: Flag for the teaser state. Will be true if view_mode is 'teaser'.
* - page: Flag for the full page state. Will be true if view_mode is 'full'.
* - readmore: Flag for more state. Will be true if the teaser content of the
* node cannot hold the main body content.
* - logged_in: Flag for authenticated user status. Will be true when the
* current user is a logged-in member.
* - is_admin: Flag for admin user status. Will be true when the current user
* is an administrator.
*
* @see template_preprocess_node()
*
* @todo Remove the id attribute (or make it a class), because if that gets
* rendered twice on a page this is invalid CSS for example: two lists
* in different view modes.
*
* @ingroup themeable
*/
#}
{# {{ kint() }} #}
<article id="node-{{ node.id }}" {{ attributes }}>
{{node}}
{{ title_prefix }}
{% if not page %}
<h2{{ title_attributes }}>
<a href="{{ url }}" rel="bookmark">{{ label }}</a>
</h2>
{% endif %}
{{ title_suffix }}
{% if node.field_packaging.value == '1' %}
{% set image = content.field_image %}
{% set ce = content.field_tax_credit_hours %}
{% set goal = content.field_goal %}
{% set target_audience = content.field_audience %}
{% set objectives = content.field_objectives %}
{% set accreditation = content.field_accreditation %}
{% set disclosure = content.field_disclosure_statement %}
{# {% set references_old = content.field_references %} #}
{% set references = content.field_references_par %}
{% set appendix = content.field_appendix %}
{% set faculty = content.field_faculty %}
{% set related_courses = content.field_related_courses %}
{# set suggested_courses = content.field_suggested_courses #}
{% set additional = content.field_callout %}
{% set expiration = node.field_expiration.value %}
我尝试过使用
看起来很独特的单词field_tax_credit_hours
并搜索项目，以查看可能在何处设置了该项目，但它仅出现在其他树枝文件中。我还对整个页面进行了整体查看，以查看也许我可以搜索输出的来源。例如，他们在我页面的最开始是：
<!-- returning result -->
当我搜索它时，它指向一个名为getResult（）的php函数
public function getResult() {
if ($this->rowBase() == "") {
print "<!-- rowBase empty -->";
\Drupal\Core\Database\Database::setActiveConnection();
return false;
}
print "<!-- returning result -->";
$result = $this->connection->query($this->rowBase())->fetchAll();
\Drupal\Core\Database\Database::setActiveConnection();
return $result;
}
搜索rowBase（）我发现了这个功能：
public function rowBase() {
if (parent::accessCheck()) {
$sql = "SELECT * FROM learning_courseuser
WHERE idUser = " . $_SESSION['public_area_idst'] .
" AND idCourse = " . $this->ID. " ";
return $sql;
} else {
return "";
}
}
因此，它似乎没有设置我需要的变量，而是在登录时返回用户信息。因此，我现在陷入困境，并不真正知道从这里出发。我从事PHP开发已有一年左右，并且只参加了团队树屋drupal课程，所以这是非常基础的。
我注意到页面也返回了
<!-- BEGIN OUTPUT from 'themes/custom/site/templates/node--course.html.twig' -->
但是搜索字符串“ BEGIN OUTPUT”不会返回任何内容。所以我不知道从这里去哪里。
似乎变量来自“内容”对象，但是在项目中搜索内容的结果太多。任何在哪里看的想法都很棒。
更新
我被要求调查template_preprocess_node
得到了：
function site_preprocess_node(&$variables) {
$node = \Drupal::routeMatch()->getParameter('node');
if ($node && $node->getType() == 'course') {
$noti = new FormaNotification();
print "HERE";
print_r($noti->getResult());
exit;
if ($noti->getResult()) {
$variables['signIn'] = "yes";
if ($noti->getFormaAdmin())
$variables['is_forma_admin'] = "yes";
else
$variables['is_forma_admin'] = "no";
} else {
$variables['signIn'] = "no";
$variables['is_forma_admin'] = "no";
}
$current_url = Url::fromRoute('<current>');
$variables['signURL'] = 'http://' . $_SERVER['HTTP_HOST'] . $current_url->toString();
if ($node->get('field_packaging')->getValue()[0]['value'] == '2') {
$variables['regis'] = true;
} else {
$reg = new FormaRegis();
$reg->setConnection('docebo');
$reg->setID($node->get('field_docebo_course_id')->getValue()[0]['value']);
$result = $reg->getResult();
if(!empty($result)) {
$variables['regis'] = true;
} else {
$variables['regis'] = false;
}
}
} // course
}
这样看来，它似乎具有某些登录功能，而不是变量
答案 0 :(得分：1)
答案就在CMS中。
当您在CMS上为内容类型创建新字段时，通常使用以field_ *开头的计算机名称。
登录到cms（/用户）并搜索结构->内容类型->（您的内容类型），然后管理字段。
您应该找到它。