Support for Drupal 7 is ending on 5 January 2025—it’s time to migrate to Drupal 10! Learn about the many benefits of Drupal 10 and find migration tools in our resource center.I am trying to assign the variables to the return array from the custom controller (block). I have some data in $data array which I am passing with return array.
This is the code in CONTROLLER file:-
namespace Drupal\custom_module\Plugin\Block;
use Drupal\Core\Block\BlockBase;
class HeaderBlock extends BlockBase {
/**
* {@inheritdoc}
*/
public function build() {
$data['test_var'] = '1234';
return array(
'#type' => 'markup',
'#theme' => 'block--header_block',
'#desc' => 'Description here',
'#data' => $data
);
}
}
I'm not able to display the value of {{ desc }} or {{ data.test_var }} variables in custom block twig template.
I have also added below code in hook_theme() in custom module file.
MODULE_FILE:-
function mytheme_theme($existing, $type, $theme, $path) {
return array(
'block__header_block' => array(
'render element' => 'elements',
'template' => 'block--header_block',
'base hook' => 'block',
'variables' => array(
'data' => NULL
)
)
);
}
Please let me know if anyone has this issue and resolved it.
Thanks
Comments
Comment #3
ao2 CreditAttribution: ao2 as a volunteer commentedI was in a similar situation.
One thing I noticed in the posted code is that in
HeaderBlock::build(), at the line'#theme' => 'block--header_block',, the value contains hyphens instead of underscores.However, even fixing that might not be enough.
I has some more luck by dropping the
block__andblock--prefixes everywhere (in the example above: inhook_theme(), inHeaderBlock::build(), and in the template file name.After that the variables were picked up, but I was getting a message like this:
That went away by removing these lines from
hook_theme():In particular the second one was triggering the message above.
BTW I think the
'template'line could be dropped too.I am new to this part of Drupal, so I'd like confirmation that my indications make sense.
Thanks,
Antonio
Comment #7
ivnish CreditAttribution: ivnish commented