added product variations to home page on pricing

web/modules/custom/materio_home/src/Plugin/Field/FieldType/ComputedProdVariationsReferences.php

@@ -0,0 +1,50 @@
+<?php
+namespace Drupal\materio_home\Plugin\Field\FieldType;
+
+use Drupal\Core\Entity\FieldableEntityInterface;
+use Drupal\Core\Field\EntityReferenceFieldItemList;
+use Drupal\Core\Field\EntityReferenceFieldItemListInterface;
+use Drupal\Core\Field\FieldItemList;
+use Drupal\Core\TypedData\TypedDataInterface;
+use Drupal\Core\Field\BaseFieldDefinition;
+use Drupal\Core\TypedData\ComputedItemListTrait;
+
+// https://www.drupal.org/node/2112677
+// https://www.cornel.co/article/entity-reference-computed-field-example-drupal
+// https://www.caxy.com/blog/drupal-custom-form-and-computed-fields
+
+class ComputedProdVariationsReferences extends EntityReferenceFieldItemList
+{
+  use ComputedItemListTrait;
+  /**
+   * The entity type manager.
+   *
+   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
+   */
+  protected $entityTypeManager;
+
+  /**
+   * {@inheritdoc}
+   */
+  public function __construct(BaseFieldDefinition $definition, $name, TypedDataInterface $parent) {
+    parent::__construct($definition, $name, $parent);
+    $this->entityTypeManager = \Drupal::entityTypeManager();
+  }
+
+  /**
+   * Compute the values.
+   */
+  protected function computeValue() {
+    $query = \Drupal::entityQuery('commerce_product_variation')
+        ->condition('status', 1)
+        ->sort('created', 'DESC')
+        // ->exists('field_visuel')
+        // ->condition('type', 'article')
+        ->range(0,12);
+    $ids = $query->execute();
+    foreach ($ids as $key => $id) {
+      $this->list[$key] = $this->createItem($key, $id);
+    }
+  }
+
+}