Trouble creating classes & schema with Create_Xpdo_Classes Snippet

if (!defined('MODX_CORE_PATH')) {
     $outsideModx = true;
    /* put the path to your core in the next line to run
     * outside of MODX */
     
    define('MODX_CORE_PATH', 'the_path_to_my_core');
    define('MODX_CONFIG_KEY', 'config');
    include_once MODX_CORE_PATH . 'model/modx/modx.class.php';
    
    $host = 'hostname';
    $username = 'username ';
    $password = 'password';
    $dbname = 'my_db';
    $port = 3306;
    $table_prefix = 'modx_';
    
    $dsn = "mysql:host=$host;dbname=$dbname;port=$port;charset=$charset";
    $modx = new xPDO($dsn, $username, $password);
    
    $modx->initialize('mgr');
    
}

$modx->initialize('mgr');

    define('MODX_CORE_PATH', 'the_path_to_my_core');  // needs to be changed
    define('MODX_CONFIG_KEY', 'config');
    include_once MODX_CORE_PATH . 'model/modx/modx.class.php';
    $host = 'hostname'; // needs to be changed
    $username = 'username '; // needs to be changed
    $password = 'password'; // needs to be changed
    $dbname = 'my_db'; // needs to be changed
    $port = 3306; // needs to be changed
    $table_prefix = 'modx_';
     
    $dsn = "mysql:host=$host;dbname=$dbname;port=$port;charset=$charset"; // needs to be changed 

<?php

$mtime = microtime();
$mtime = explode(" ", $mtime);
$mtime = $mtime[1] + $mtime[0];
$tstart = $mtime;
set_time_limit(0);

/* define package name */
define('PKG_NAME','cwDB');
define('PKG_NAME_LOWER',strtolower(PKG_NAME));

//Customize this line based on the location of your script
include_once (dirname(dirname(dirname(dirname(__FILE__)))).'/core/xpdo/xpdo.class.php');

$host = 'localhost';
$username = 'homestead';
$password = 'secret';
$dbname = 'cwdb';
$port = 3306;
$charset = 'utf8';
$tablePrefix = 'cw_';

$dsn = "mysql:host=$host;dbname=$dbname;port=$port;charset=$charset";
$xpdo = new xPDO($dsn, $username, $password, $tablePrefix);
$xpdo->setDebug(true);

// Test your connection
echo $o = ($xpdo->connect()) ? 'Connected' : 'Not Connected';
echo '<pre>'; /* used for nice formatting of log messages */
$manager= $xpdo->getManager();
$generator= $manager->getGenerator();

$generator->classTemplate= <<<EOD
<?php
/**
 * [+phpdoc-package+]
 */
class [+class+] extends [+extends+] {}
?>
EOD;
$generator->platformTemplate= <<<EOD
<?php
/**
 * [+phpdoc-package+]
 */
require_once (strtr(realpath(dirname(dirname(__FILE__))), '\\\\', '/') . '/[+class-lowercase+].class.php');
class [+class+]_[+platform+] extends [+class+] {}
?>
EOD;
$generator->mapHeader= <<<EOD
<?php
/**
 * [+phpdoc-package+]
 */
EOD;
$xpdo->setPackage('cwdb', dirname(dirname(__FILE__)).'/core/components/cwdb/model/');

$schema = dirname(dirname(__FILE__)).'/core/components/cwdb/model/schema/cwdb.mysql.schema.xml';
$target = dirname(dirname(__FILE__)).'/core/components/cwdb/model/';
$generator->parseSchema($schema,$target);

$manager->createObjectContainer('UnconfirmedStudent');
$manager->createObjectContainer('Student');
$manager->createObjectContainer('StudentPayment');
$manager->createObjectContainer('Subject');
$manager->createObjectContainer('Level');
$manager->createObjectContainer('Location');
$manager->createObjectContainer('Enrolment');
$manager->createObjectContainer('Lesson');
$manager->createObjectContainer('Term');
$manager->createObjectContainer('SEBarcode');


$xpdo->log(xPDO::LOG_LEVEL_INFO, 'Done!');


$mtime= microtime();
$mtime= explode(" ", $mtime);
$mtime= $mtime[1] + $mtime[0];
$tend= $mtime;
$totalTime= ($tend - $tstart);
$totalTime= sprintf("%2.4f s", $totalTime);

echo "\nExecution time: {$totalTime}\n";

exit ();

    public $modx = null;
    public $namespace = 'cwdb';
    public $foreignDB = null;
    public $database_type = 'mysql';
    public $database_connection_charset = 'utf8';
    public $dbase = 'cwdb';
    public $table_prefix = 'cw_';

    public function __construct(modX &$modx, array $options = array()) {
        $this->modx =& $modx;
        $this->namespace = $this->getOption('namespace', $options, 'cwdb');
        $this->database_server = 'localhost'; 
        $this->database_user = 'homestead'; 
        $this->database_password = 'secret'; 

        $database_dsn = $this->database_type.':host='.$this->database_server.';dbname='.$this->dbase.' charset='.$this->database_connection_charset;
        
        $options = array(
            xPDO::OPT_HYDRATE_FIELDS => true,
            xPDO::OPT_HYDRATE_RELATED_OBJECTS => true,
            xPDO::OPT_HYDRATE_ADHOC_FIELDS => true
        );
        $this->foreignDB = new xPDO($database_dsn, $this->database_user, $this->database_password, $options);

        $package_path = $modx->getOption('cwdb.core_path').'model/';
        if ( !$this->foreignDB->addPackage('cwdb', $package_path, $this->table_prefix) ) {
            return 'Can not load package';
        }
        return true;

    }

$createSchema = $xpdo->getOption('createSchema',
    $scriptProperties,true);
$createClasses = $xpdo->getOption('createClasses',
    $scriptProperties,true);
    
$includeCustomTemplates = empty($includeCustomTemplates) ? false : $includeCustomTemplates;    
    
$myPackage = empty($myPackage)? 'mypackage' : $myPackage;
$myPrefix = empty ($myPrefix)? 'modx_' : $myPrefix;
$myTables = empty($myTables)? '' : $myTables;

$sources = array(
    'config' => MODX_CORE_PATH . 'config/config.inc.php',
    'package' => MODX_CORE_PATH . 'components/' .
        $myPackage . '/',
    'model' => MODX_CORE_PATH. 'components/' . $myPackage .
        '/model/',
    'schema' => MODX_CORE_PATH . 'components/' .
        $myPackage . '/schema/',
);

if (! file_exists($sources['package'])) {
    mkdir($sources['package'],0777);
}
 
if (! file_exists($sources['model'])) {
    mkdir($sources['model'],0777);
}
if (! file_exists($sources['schema'])) {
    mkdir($sources['schema'],0777);
}

$xpdo->setLogLevel(modX::LOG_LEVEL_INFO);
$xpdo->setLogTarget(XPDO_CLI_MODE ? 'ECHO' : 'HTML');

echo '<pre>'; /* used for nice formatting of log messages */
$manager= $xpdo->getManager();
$generator= $manager->getGenerator();

if ($includeCustomTemplates) {
    customTemplates($generator);
}

$file = $sources['schema'] . $myPackage .
    '.mysql.schema.xml';
    
if ($createSchema) {
    $xml= $generator->writeSchema($file,
        $myPackage, '',$myPrefix,true,$myTables);
 
    if ($xml) {
        $xpdo->log(modX::LOG_LEVEL_INFO,
            'Schema file written to ' . $file);
    } else {
        $xpdo->log(modX::LOG_LEVEL_INFO,
            'Error writing schema file');
    }
}
 
if ($createClasses) {
    if ($generator->parseSchema($file, $sources['model'])){
        $xpdo->log(modX::LOG_LEVEL_INFO,
            'Schema file parsed -- Files written to ' .
                $sources['model']);
    } else {
        $xpdo->log(modX::LOG_LEVEL_INFO,
            'Error parsing schema file');
    }
}
$xpdo->log(modX::LOG_LEVEL_INFO, 'FINISHED');    
exit();
 
function customTemplates($generator) {
$generator->classTemplate= <<<EOD
<?php
/**
 * [+phpdoc-package+]
 * [+phpdoc-subpackage+]
 */
class [[+class]] extends [[+extends]] {
 
}
?>
EOD;
$generator->platformTemplate= <<<EOD
<?php
/**
 * [+phpdoc-package+]
 * [+phpdoc-subpackage+]
 */
require_once (dirname(dirname(__FILE__)) .
    '/[+class-lowercase+].class.php');
class [+class+]_[+platform+] extends [+class+] {
}
?>
EOD;
$generator->mapHeader = <<<EOD
<?php
/**
 * [+phpdoc-package+]
 * [+phpdoc-subpackage+]
 */
EOD;
$xpdo->setPackage('mypackage', MODX_CORE_PATH.'/components/mypackage/model/');
 
$schema = MODX_CORE_PATH.'/components/mypackage/model/schema/mypackage.mysql.schema.xml';
$target = MODX_CORE_PATH.'/components/mypackage/model/';
$generator->parseSchema($schema,$target);
 
$manager->createObjectContainer('body_type');
$manager->createObjectContainer('cylinders');
$manager->createObjectContainer('drivetrain');
$manager->createObjectContainer('engine_placement');
$manager->createObjectContainer('engine_type');
$manager->createObjectContainer('make');
$manager->createObjectContainer('model');
$manager->createObjectContainer('model_body');
$manager->createObjectContainer('model_details');
$manager->createObjectContainer('model_engine');
$manager->createObjectContainer('model_name');
$manager->createObjectContainer('model_performance');
$manager->createObjectContainer('model_specs');
 
 
$xpdo->log(xPDO::LOG_LEVEL_INFO, 'Done!');
 
 
$mtime= microtime();
$mtime= explode(" ", $mtime);
$mtime= $mtime[1] + $mtime[0];
$tend= $mtime;
$totalTime= ($tend - $tstart);
$totalTime= sprintf("%2.4f s", $totalTime);
 
echo "\nExecution time: {$totalTime}\n";
 
exit ();
}