Drupal 8 - call function from twig template:
Create a service yml file 'module_name.services.yml'
services:
unique_function_name:
class: Drupal\module_name\Service\ClassName
tags:
- { name: twig.extension }
Create a service class 'src/Service/ClassName'
<?php
namespace Drupal\module_name\Service;
use Drupal\taxonomy\Entity\Term;
use Twig\Extension\AbstractExtension;
use Twig\TwigFunction;
use Drupal\commerce_product\Entity\Product;
use Drupal\commerce_product\Entity\ProductAttributeValue;
/**
* Class IBSearch.
*
* @package Drupal\ibsearch
*/
class ClassName extends AbstractExtension {
/**
* {@inheritdoc}
* This function must return the name of the extension. It must be unique.
*/
public function getName() {
return 'unique_function_name';
}
/**
* In this function we can declare the extension function
*/
public function getFunctions() {
return [
new TwigFunction('ib_get_term_name', [$this, 'getTermName']),
new TwigFunction('ib_get_attr_name', [$this, 'getAttrName']),
new TwigFunction('ib_get_format', [$this, 'getFormat']),
new TwigFunction('ib_format_amount', [$this, 'formatAmount']),
];
}
/**
* The php function to load a given block
*/
public function getTermName($tid) {
// Normalize if $tid is a Markup
$tid = "".$tid;
$term = Term::load($tid);
if ($term) {
return $term->getName();
}
return '';
}
public function getAttrName($attrId) {
$attrObject = ProductAttributeValue::load($attrId);
return is_null($attrObject) ? '' : $attrObject->get('name')->value;
}
public function getFormat(Product $commerce_product) {
$variations = $commerce_product->getVariations();
$format = array();
foreach ($variations as $variation) {
$value = $variation->getAttributeValue('attribute_format');
$retval[] = $value->getName();
}
return implode(' | ', $retval);
}
public function formatAmount(string $amount) {
$price = number_format((float)$amount, 2, ".", ",");
return str_replace(".00", "", $price);
}
}
Now call your function from twig file:
{{ ib_format_amount(item.content["#markup"]) }}
Thanks for reading...
