TimeTrackingAccessControlHandler.php in Drupal PM (Project Management) 4.x        
                          
                  
                        
  
  
  
  
  
File
  modules/pm_timetracking/src/TimeTrackingAccessControlHandler.php
  
    View source  
  <?php
namespace Drupal\pm_timetracking;
use Drupal\Core\Entity\EntityAccessControlHandler;
use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\Session\AccountInterface;
use Drupal\Core\Access\AccessResult;
class TimeTrackingAccessControlHandler extends EntityAccessControlHandler {
  
  protected function checkAccess(EntityInterface $entity, $operation, AccountInterface $account) {
    
    switch ($operation) {
      case 'view':
        $permission = $this
          ->checkOwn($entity, $operation, $account);
        if (!empty($permission)) {
          return AccessResult::allowed();
        }
        return AccessResult::allowedIfHasPermission($account, 'view time tracking entities');
      case 'update':
        $permission = $this
          ->checkOwn($entity, $operation, $account);
        if (!empty($permission)) {
          return AccessResult::allowed();
        }
        return AccessResult::allowedIfHasPermission($account, 'edit time tracking entities');
      case 'delete':
        $permission = $this
          ->checkOwn($entity, $operation, $account);
        if (!empty($permission)) {
          return AccessResult::allowed();
        }
        return AccessResult::allowedIfHasPermission($account, 'delete time tracking entities');
    }
    
    return AccessResult::neutral();
  }
  
  protected function checkCreateAccess(AccountInterface $account, array $context, $entity_bundle = NULL) {
    return AccessResult::allowedIfHasPermission($account, 'add time tracking entities');
  }
  
  protected function checkOwn(EntityInterface $entity, string $operation, AccountInterface $account) {
    $uid = $entity
      ->getOwnerId();
    $is_own = $account
      ->isAuthenticated() && $account
      ->id() == $uid;
    if (!$is_own) {
      return NULL;
    }
    $bundle = $entity
      ->bundle();
    $ops = [
      'create' => 'pm_time_tracking %bundle add own %bundle entities',
      'view' => 'pm_time_tracking %bundle view own entities',
      'update' => 'pm_time_tracking %bundle edit own entities',
      'delete' => 'pm_time_tracking %bundle delete own entities',
    ];
    $permission = strtr($ops[$operation], [
      '%bundle' => $bundle,
    ]);
    if ($account
      ->hasPermission($permission)) {
      return $permission;
    }
    return NULL;
  }
}