private function NodeTypeAccessService::extractBaseTableAlias in Nodetype access 8

Extract base table alias.

Parameters

\Drupal\Core\Database\Query\AlterableInterface $query:

Return value

string|null

Throws

\Drupal\Component\Plugin\Exception\InvalidPluginDefinitionException

\Drupal\Component\Plugin\Exception\PluginNotFoundException

\Exception

1 call to NodeTypeAccessService::extractBaseTableAlias()

NodeTypeAccessService::hookQueryNodeAccessAlter in src/NodeTypeAccessService.php

File

src/NodeTypeAccessService.php, line 118

Class

NodeTypeAccessService

Namespace

Drupal\nodetype_access

Code

private function extractBaseTableAlias(AlterableInterface $query) {

  // Copied from @see \node_query_node_access_alter
  $tables = $query
    ->getTables();
  $base_table = $query
    ->getMetaData('base_table');

  // If the base table is not given, default to one of the node base tables.
  if (!$base_table) {

    /** @var \Drupal\Core\Entity\Sql\DefaultTableMapping $table_mapping */
    $table_mapping = \Drupal::entityTypeManager()
      ->getStorage('node')
      ->getTableMapping();
    $node_base_tables = $table_mapping
      ->getTableNames();
    foreach ($tables as $table_info) {
      if (!$table_info instanceof SelectInterface) {
        $table = $table_info['table'];

        // Ensure that 'node' and 'node_field_data' are always preferred over
        // 'node_revision' and 'node_field_revision'.
        if ($table == 'node' || $table == 'node_field_data') {
          $base_table = $table;
          break;
        }

        // If one of the node base tables are in the query, add it to the list
        // of possible base tables to join against.
        if (in_array($table, $node_base_tables)) {
          $base_table = $table;
        }
      }
    }
  }
  if (isset($base_table)) {

    // Copied from @see \Drupal\node\NodeGrantDatabaseStorage::alterQuery
    foreach ($tables as $table_alias => $tableinfo) {
      $table = $tableinfo['table'];
      if (!$table instanceof SelectInterface && $table == $base_table) {
        return $table_alias;
      }
    }
  }
}