StockLevelProcessor.php in Commerce Stock 8

Namespace

Drupal\commerce_stock_field

File

modules/field/src/StockLevelProcessor.php

<?php

namespace Drupal\commerce_stock_field;

use Drupal\Core\TypedData\TypedData;

/**
 * Processor used by the StockLevel field.
 */
class StockLevelProcessor extends TypedData {

  /**
   * Whether the stock level have already been computed or not.
   *
   * @var bool
   */
  protected $valueComputed = FALSE;

  /**
   * Cached processed level.
   *
   * @var float|null
   */
  protected $processedLevel = NULL;

  /**
   * {@inheritdoc}
   */
  public function getValue() {
    $this
      ->ensureComputedValue();
    return $this->processedLevel;
  }

  /**
   * {@inheritdoc}
   */
  public function setValue($value, $notify = TRUE) {
    if (is_null($value)) {
      return;
    }
    $this->processedLevel = $value;

    // Make sure that subsequent getter calls do not try to compute the
    // stock level again.
    $this->valueComputed = TRUE;
  }

  /**
   * Get the current stock level.
   */
  protected function computeValue() {
    $entity = $this
      ->getParent()
      ->getEntity();

    /** @var \Drupal\commerce_stock\StockServiceManager $stockServiceManager */
    $stockServiceManager = \Drupal::service('commerce_stock.service_manager');
    $level = $stockServiceManager
      ->getStockLevel($entity);
    $this->processedLevel = $level;
  }

  /**
   * Ensures that the stock level is only computed once.
   */
  protected function ensureComputedValue() {
    if ($this->valueComputed === FALSE) {
      $this
        ->computeValue();
      $this->valueComputed = TRUE;
    }
  }

}

Classes

Name	Description
StockLevelProcessor	Processor used by the StockLevel field.