protected function ProductBundleItemsWidget::getItemAttributeInfo in Commerce Product Bundle 8

Gets the attribute information for the selected product variation.

Parameters

\Drupal\commerce_product\Entity\ProductVariationInterface $selected_variation: The selected product variation.

\Drupal\commerce_product\Entity\ProductVariationInterface[] $variations: The available product variations.

Return value

array[] The attribute information, keyed by field name.

1 call to ProductBundleItemsWidget::getItemAttributeInfo()

ProductBundleItemsWidget::getBundleItemForm in src/Plugin/Field/FieldWidget/ProductBundleItemsWidget.php

Gets the child form element for a given bundle item.

File

src/Plugin/Field/FieldWidget/ProductBundleItemsWidget.php, line 317

Class

ProductBundleItemsWidget

Plugin implementation of the 'commerce_product_bundle_items' widget.

Namespace

Drupal\commerce_product_bundle\Plugin\Field\FieldWidget

Code

protected function getItemAttributeInfo(ProductVariationInterface $selected_variation, array $variations) {
  $attributes = [];
  $field_definitions = $this->attributeFieldManager
    ->getFieldDefinitions($selected_variation
    ->bundle());
  $field_map = $this->attributeFieldManager
    ->getFieldMap($selected_variation
    ->bundle());
  $field_names = array_column($field_map, 'field_name');
  $index = 0;
  foreach ($field_names as $field_name) {

    /** @var \Drupal\commerce_product\Entity\ProductAttributeInterface $attribute_type */
    $attribute_type = $this->attributeStorage
      ->load(substr($field_name, 10));
    $field = $field_definitions[$field_name];
    $attributes[$field_name] = [
      'field_name' => $field_name,
      'title' => $field
        ->getLabel(),
      'required' => $field
        ->isRequired(),
      'element_type' => $attribute_type
        ->getElementType(),
    ];

    // The first attribute gets all values. Every next attribute gets only
    // the values from variations matching the previous attribute value.
    // For 'Color' and 'Size' attributes that means getting the colors of all
    // variations, but only the sizes of variations with the selected color.
    $callback = NULL;
    if ($index > 0) {
      $previous_field_name = $field_names[$index - 1];
      $previous_field_value = $selected_variation
        ->getAttributeValueId($previous_field_name);
      $callback = function ($variation) use ($previous_field_name, $previous_field_value) {

        /** @var \Drupal\commerce_product\Entity\ProductVariationInterface $variation */
        return $variation
          ->getAttributeValueId($previous_field_name) == $previous_field_value;
      };
    }
    $attributes[$field_name]['values'] = $this
      ->getAttributeValues($variations, $field_name, $callback);
    $index++;
  }

  // Filter out attributes with no values.
  $attributes = array_filter($attributes, function ($attribute) {
    return !empty($attribute['values']);
  });
  return $attributes;
}