我正在使用Drupal，并为html模板设置了树枝。我是这个项目的新手，看到有一个控制器，该控制器具有查询数据库的功能，然后它们返回该查询以获取课程页面属性，并且我看到属性在相应的course.twig.html中显示的位置。
我看不到它们是如何连接的以及twig.html如何知道其属性从何而来。我正在尝试向页面添加更多属性，但看不到该项目如何将mysql查询传递给树枝模板。
{#
/**
* @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* - node--unpublished: Appears on unpublished nodes visible only to site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 %}
<div class="course-summary row">
{% if image|render %}
<div class="course-image small-6 small-offset-3 medium-4 medium-offset-0 columns">
{{ image }}
</div>
<div class="small-12 medium-8 columns">
{% else %}
<div class="small-12 columns">
{% endif %}
<div class="course-introduction">
<p>Welcome to <em>{{ label }}</em>.</p>
</div>
{% if not resource %}
{% if ce.0|render %}
<small class="credit-hours inline-label">Credit hours: {{ ce.0 }} CE</small>
{% endif %}
{% endif %}
<div class="enroll">
{% if signIn == "yes" %}
{% if regis == true %}
<a href="appLms/index.php?modname=course&op=aula&idCourse={{ content.field_docebo_course_id.0 }}" class="button large">Go</a>
{% else %}
<a href="#" id="regis" rel="{{ content.field_docebo_course_id.0 }}" class="button large">Enroll</a>
{% endif %}
{% else %}
<a href="dashboard/login?lms_id={{ signURL }}" class="button large">Enroll</a>
{% endif %}
</div>
</div>
</div>
{% if goal|render or objectives|render %}
<ul class="tabs some-tabs" data-responsive-accordion-tabs="tabs small-accordion medium-tabs" data-allow-all-closed="true" data-multi-expand="true" id="course-tabs">
<li class="tabs-title is-active"><a href="#overview" aria-selected="true">Overview</a></li>
{% if appendix|render %}
<li class="tabs-title"><a href="#appendix">Appendix</a></li>
{% endif %}
{% if references|render %}
<li class="tabs-title"><a href="#references">References</a></li>
{% endif %}
{% if faculty|render %}
<li class="tabs-title"><a href="#faculty">Faculty</a></li>
{% endif %}
</ul>
<div class="tabs-content" data-tabs-content="course-tabs">
<div id="overview" class="tabs-panel is-active course-overview">
{{ additional|render ? additional }}
{% if goal|render %}
<h2 class="field-label">{{ node.field_goal.fielddefinition.label }}</h2>
{{ goal }}
{% endif %}
<h2 class="field-label">{{ node.field_audience.fielddefinition.label }}</h2>
{% if target_audience|render %}
{{ target_audience }}
{% else %}
<p>interested health-care professionals.</p>
{% endif %}
{% if objectives|render %}
<h2 class="field-label">{{ node.field_objectives.fielddefinition.label }}</h2>
<p>After completing the activities of this module, you will be able to:</p>
{{ objectives }}
{% endif %}
{% if expiration|render %}
<p>Please note this module expires on <strong>{{ expiration|date('n/j/Y') }}</strong>.</p>
{% endif %}
{% if accreditation|render or disclosure|render %}
<div class="course-supplements">
{% if accreditation|render %}
<h2 class="supplement-title"><a href="#accreditation" class="callout-link" data-toggle="accreditation">Accreditation Statement</a></h2>
<div id="accreditation" class="callout callout-arrow is-hidden" data-toggler=".is-hidden">
{% for i, value in accreditation %}
{% set acc_item = node.field_accreditation[i].entity %}
{% if acc_item %}
<h3>{{ acc_item.title.value }}</h3>
{% autoescape false %}
{{ acc_item.body.value|replace({'{{ #.## }}': ce.0|escape }) }}
{% endautoescape %}
{% endif %}
{% endfor %}
<button class="close-button" data-toggle="accreditation">×</button>
</div>
{% endif %}
{% if disclosure|render %}
<h2 class="supplement-title"><a href="#disclosure" class="callout-link" data-toggle="disclosure">Disclosures</a></h2>
<div id="disclosure" class="callout callout-arrow is-hidden" data-toggler=".is-hidden">
{{ disclosure }}
<button class="close-button" data-toggle="disclosure">×</button>
</div>
{% endif %}
</div>
{% endif %}
</div>
{% if appendix|render %}
<div id="appendix" class="tabs-panel course-appendix">
{% if appendix %}
<ul class="tabs tabs-style-text" data-tabs id="course-appendix-tabs">
{% for i, value in node.field_appendix.value %}
{% set ref_title = node.field_appendix[i].entity.field_title.value %}
{% if ref_title %}
<li class="tabs-title{{ i == 0 ? ' is-active'}}"><a href="#{{ ref_title|clean_class }}" aria-selected="{{ i == 1 ? 'true' : 'false' }}">{{ ref_title }}</a></li>
{% endif %}
{% endfor %}
</ul>
<div class="tabs-content" data-tabs-content="course-appendix-tabs">
{% for i, value in node.field_appendix.value %}
<div id="{{ node.field_appendix[i].entity.field_title.value|clean_class }}" class="tabs-panel{{ i == 0 ? ' is-active'}}">
{% autoescape false %}
{{ node.field_appendix[i].entity.field_content.value }}
{% endautoescape %}
</div>
{% endfor %}
</div>
{% endif %}
</div>
{% endif %}
{% if references|render %}
<div id="references" class="tabs-panel course-references">
{% if references %}
<ul class="tabs tabs-style-text" data-tabs id="course-references-tabs">
{% for i, value in node.field_references_par.value %}
{% set ref_title = node.field_references_par[i].entity.field_title.value %}
{% if ref_title %}
<li class="tabs-title{{ i == 0 ? ' is-active'}}"><a href="#{{ ref_title|clean_class }}" aria-selected="{{ i == 1 ? 'true' : 'false' }}">{{ ref_title }}</a></li>
{% endif %}
{% endfor %}
</ul>
<div class="tabs-content" data-tabs-content="course-references-tabs">
{% for i, value in node.field_references_par.value %}
<div id="{{node.field_references_par[i].entity.field_title.value|clean_class}}" class="tabs-panel{{ i == 0 ? ' is-active'}}">
{% autoescape false %}
{{ node.field_references_par[i].entity.field_content.value }}
{% endautoescape %}
</div>
{% endfor %}
</div>
{% endif %}
</div>
{% endif %}
{% if faculty|render %}
<div id="faculty" class="tabs-panel course-faculty">
<div class="sections">
{{ faculty }}
</div>
</div>
{% endif %}
</div>
{% endif %}
{% if related_courses|render %}
{% set ancillary_1 = node.field_related_courses.fielddefinition.label %}
{% set ancillary_2 = 'Guidance' %}
{# set ancillary_2 = node.field_suggested_courses.fielddefinition.label #}
<ul class="sections sections-border accordion mobile-accordion stacked-tabs" data-accordion data-allow-all-closed="true" data-multi-expand="true">
<li class="section accordion-item" data-accordion-item>
<a href="#" class="accordion-title show-for-small-only">{{ ancillary_1 }}</a>
{% if related_courses|render %}
<div class="tiles mobile-accordion-content" data-tab-content>
<h2 class="field-label section-title hide-for-small-only">{{ ancillary_1 }}</h2>
<div class="list-items list-format-3">
{{ related_courses }}
</div>
</div>
{% endif %}
</li>
<li class="section accordion-item" data-accordion-item>
<a href="#" class="accordion-title show-for-small-only">{{ ancillary_2 }}</a>
<div class="tiles mobile-accordion-content" data-tab-content>
<h2 class="field-label section-title hide-for-small-only">{{ ancillary_2 }}</h2>
<div class="list-items list-format-1 list-type-guidance">
{{ drupal_view('content_feed', 'guidance') }}
</div>
</div>
</li>
</ul>
{{ drupal_view('content_feed', 'guidance_modal') }}
{% endif %}
{% else %}
{{ content.body }}
{% endif %}
</article>
答案 0 :(得分：2)
您应该搜索预处理钩子（函数yourmodule_preprocess ...）。如果您使用的是drupal8，则可以这样设置新变量：
"@babel/core": "^7.2.2",
"babel-preset-minify": "^0.5.0",
"babelify": "^10.0.0",
"browserify": "^16.2.3",
"gulp": "^4.0.0",
"tsify": "^4.0.1",
"typescript": "^3.2.2",
"vinyl-source-stream": "^2.0.0"
在树枝上，可以这样称呼
$vars['myvar'] = 'test';
重要提示：它将无法在所有功能中使用。我曾经使用过预处理功能，但是感谢@leymannx，我们知道它也可以与其他钩子一起使用：
“不仅预处理钩子可以将变量传递给模板。 hook_theme，然后在您的控制器主题中输出并传递 变量和模板”
答案 1 :(得分：-2)
在控制器中渲染树枝模板时，还可以将一些变量作为数据传递。如果要在树枝模板中显示该数据，请在树枝函数和语言构造内使用它们的名称来命名它们。
就是这样。
由于您的问题很笼统，我无能为力。