Creating a new database.

I've been trying to follow the process for creating a new database, as detailed here: https://codeigniter4.github.io/userguide...se-db-name

PHP Code:

<?php
namespace App\Models;
use CodeIgniter\Model;
use CodeIgniter\Database\RawSql;

class InitiateDatabaseModel extends Model{
public function createDrawingTable($id){
    $dbName = 'D'.$id;
    $forge = \Config\Database::forge();
    $forge->createDatabase($dbName,TRUE);

    $fields = array(
        'element'=>array(
                'type'=>'INT',
                'unsigned'=>true
            ),
        'eID'=>array(
                'type'=>'INT',
                'unsigned'=>true
            ),
        'txt'=>array(
                'type'=>'VARCHAR',
                'constraint'=>255
            )
        );
$forge->addField($fields);
$forge->createTable('text', TRUE); 


The Database is not created but the table, with its fields, is added to the default database.
What am I doing wrong?

~ Dave