function DbDumpCommand::getTableCollation

Set the table collation.

Parameters

\Drupal\Core\Database\Connection $connection: The database connection to use.

string $table: The table to find indexes for.

array &$definition: The schema definition to modify.

File

core/lib/Drupal/Core/Command/DbDumpCommand.php, line 277

Class

DbDumpCommand

Provides a command to dump the current database to a script.

Namespace

Code

protected function getTableCollation(Connection $connection, $table, &$definition) {
    // Remove identifier quotes from the table name. See
    // \Drupal\mysql\Driver\Database\mysql\Connection::$identifierQuotes.
    $table = trim($connection->prefixTables('{' . $table . '}'), '"');
    $query = $connection->query("SHOW TABLE STATUS WHERE NAME = :table_name", [
        ':table_name' => $table,
    ]);
    $data = $query->fetchAssoc();
    // Map the collation to a character set. For example, 'utf8mb4_general_ci'
    // (MySQL 5) or 'utf8mb4_0900_ai_ci' (MySQL 8) will be mapped to 'utf8mb4'.
    [
        $charset,
    ] = explode('_', $data['Collation'], 2);
    // Set `mysql_character_set`. This will be ignored by other backends.
    $definition['mysql_character_set'] = $charset;
}