protected function EntityQueryAlter::ensureDataTable in Group 8

Same name and namespace in other branches

1. 2.0.x src/QueryAccess/EntityQueryAlter.php \Drupal\group\QueryAccess\EntityQueryAlter::ensureDataTable()

Ensures the query is joined against the data table.

Parameters

string $base_table: The alias of the base table.

\Drupal\Core\Database\Query\SelectInterface $query: The select query.

\Drupal\Core\Entity\EntityTypeInterface $entity_type: The entity type.

Return value

string The data table alias.

1 call to EntityQueryAlter::ensureDataTable()

EntityQueryAlter::doAlter in src/QueryAccess/EntityQueryAlter.php

Actually alters the select query for the given entity type.

File

src/QueryAccess/EntityQueryAlter.php, line 515

Class

EntityQueryAlter

Defines a class for altering entity queries.

Namespace

Drupal\group\QueryAccess

Code

protected function ensureDataTable($base_table, SelectInterface $query, EntityTypeInterface $entity_type) {
  if ($this->dataTableAlias === FALSE) {
    if (!($data_table = $entity_type
      ->getDataTable())) {
      $data_table = $base_table;
      $data_table_found = TRUE;
    }
    else {
      $data_table_found = FALSE;
      foreach ($query
        ->getTables() as $alias => $table) {
        if (!$data_table_found && ($table['join type'] === 'INNER' || $alias === $base_table) && $table['table'] === $data_table) {
          $data_table = $alias;
          $data_table_found = TRUE;
          break;
        }
      }
    }

    // If the data table wasn't added to the query yet, add it here.
    if (!$data_table_found) {
      $id_key = $entity_type
        ->getKey('id');
      $this->dataTableAlias = $query
        ->join($data_table, $data_table, "{$base_table}.{$id_key}={$data_table}.{$id_key}");
    }
    else {
      $this->dataTableAlias = $data_table;
    }
  }
  return $this->dataTableAlias;
}