function Upload::query

Prepares query object to retrieve data from the source database.

This method should not be called directly. It is called automatically from SqlBase::prepareQuery().

Return value

\Drupal\Core\Database\Query\SelectInterface A Select query object with the source data.

Overrides SqlBase::query

File

core/modules/file/src/Plugin/migrate/source/d6/Upload.php, line 31

Class

Upload

Drupal 6 upload source from database.

Namespace

Code

public function query() {
  $query = $this->select('upload', 'u')
    ->distinct()
    ->fields('u', [
    'nid',
    'vid',
  ]);
  $query->innerJoin('node', 'n', static::JOIN);
  $query->addField('n', 'type');
  $query->addField('n', 'language');
  return $query;
}