I know there are tons of posts for this but I think I have a problem with understanding how a custom block with a custom template is meant to work in Drupal 8.
Problem
My aim:
To place a custom block to display social icons. The block needs some logic (generate a url for example).
My main problem:
Everything seems to work so far but I do not get the variables passed through the twig-template (url and urlencode). They always contain the default value from the module-file (null).
What I have so far:
Files under /modules/custom/wzm_social_icons:
- wzm_social_icons.info.yml
- wzm_social_icons.module
- src/Plugin/Block/WzmSocialIconsBlock.php
- templates/block--wzmsocialicons.html.twig
I installed the module and also placed a custom block with id "socialicons". The block itself is just a placeholder with no special fields.
Files
wzm_social_icons.module
function wzm_social_icons_theme($existing, $type, $theme, $path) { return array('block__wzm_social_icons' => array( 'variables' => array( 'url' => null, 'urlencoded' => null ), 'template' => 'block--wzmsocialicons' ) ); } WzmSocialIconsBlock.php
class WzmSocialIconsBlock extends BlockBase { /** * {@inheritdoc} */ public function build() { $oUrl = Url::fromRoute('<current>'); $sUrl = $oUrl->toString(); $sUrl = \Drupal::request()->getSchemeAndHttpHost() . $sUrl; $sUrlEncoded = urlencode($sUrl); return array( '#url' => $sUrl, '#urlencoded' => $sUrlEncoded ); } } Nothing special in the twig-template - just the output for {{ url }} and {{ urlencode }}.
I think my main problem is to understand what needs to be declared with which key in the module-file and if the custom-block-id is used somewhere. No clue so far.
Thanks for any help!
Cheers
