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I have a module that define a Routing and a controller

my.partner:
  path: '/partner/{alias}'
  defaults:
    _controller: '\Drupal\myname\Controller\PagesController::partner'
    _title: 'Partner'

In controller I define the template to use:

$variables = [
         '#theme' => 'page_partner',
]....

But I need to pass some "variables" from this "controller" to html <head>. How can I do it ?

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2 Answers 2

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Define the variables in your theme and the pass them as "#variable" = value. E.g. in YOUR_MODULE.module have something like:

function tb_megamenu_theme($existing, $type, $theme, $path) {
  $items['tb_megamenu'] = [
  'template' => 'tb-megamenu',
    'variables' => [
      'menu_name' => NULL,
      'content' => NULL,
      'section' => 'frontend',
      'block_theme' => \Drupal::config('system.theme')->get('default'),
    ],
  ];
}

In your controller use:

$render = [
  '#theme' => 'tb_megamenu',
  '#menu_name' => $this->getMenuName(),
  '#block_theme' => $this->getThemeName(),
  '#content' => $this->getContent(),
];
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  • Sorry.. did not see the Head requirement. Clive is right.
    – CG Monroe
    Commented Sep 26, 2017 at 14:57
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This has been bumped up to the homepage. To make the comment of @Clive more clear, you can attach page attachments via #attached to any theme or render element (#theme, #type, #markup) and it will bubble up to page level when rendered:

$variables = [
  '#theme' => 'page_partner',
  '#attached' => [
    'html_head' => [
      [
        [
          '#tag' => 'meta',
          '#attributes' => [
            'name' => 'foo',
            'content' => 'bar',
          ],
        ],
        'my_module_foo',
      ],
    ],
  ],
];

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