protected function SqlContentEntityStorageSchema::isTableEmpty in Drupal 8

Same name and namespace in other branches

1. 9 core/lib/Drupal/Core/Entity/Sql/SqlContentEntityStorageSchema.php \Drupal\Core\Entity\Sql\SqlContentEntityStorageSchema::isTableEmpty()
2. 10 core/lib/Drupal/Core/Entity/Sql/SqlContentEntityStorageSchema.php \Drupal\Core\Entity\Sql\SqlContentEntityStorageSchema::isTableEmpty()

Checks whether a database table is non-existent or empty.

Empty tables can be dropped and recreated without data loss.

Parameters

string $table_name: The database table to check.

Return value

bool TRUE if the table is empty, FALSE otherwise.

File

core/lib/Drupal/Core/Entity/Sql/SqlContentEntityStorageSchema.php, line 2491

Class

SqlContentEntityStorageSchema

Defines a schema handler that supports revisionable, translatable entities.

Namespace

Drupal\Core\Entity\Sql

Code

protected function isTableEmpty($table_name) {
  return !$this->database
    ->schema()
    ->tableExists($table_name) || !$this->database
    ->select($table_name)
    ->countQuery()
    ->range(0, 1)
    ->execute()
    ->fetchField();
}