Make XPDO DB Connection and package available to other snippets?

if (!isset($modx->myDB)) {
 
$host = 'IPAddress';
$username = 'Username';
$password = 'Password';
$dbname = 'DBName';
$port = 3306;
$charset = 'utf-8';
    
$dsn = "mysql:host=$host;dbname=$dbname;port=$port;charset=$charset";
$modx->myDB = new xPDO($dsn, $username, $password);
    
echo $o = ($modx->myDB->connect()) ? 'Connected </br>' : 'Not Connected';

  $path = MODX_CORE_PATH . 'components/nhs/';
	if (!$modx->myDB->addPackage('packageName', $path . 'model/','')) {
	  print 'There was a problem adding your package.';
	};

}

$results = $modx->myDB->getCollection('LogData',array('diallednumber' => $search));

[[dbconnect]]
[[!dbform]]

<?php
if (isset($_POST['search'])) {

    $search = $_POST['search'];
 
    $results = $modx->myDB->getCollection('LogData',array('diallednumber' => $search));

    if ($results) {
	   $output ='';
     foreach($results as $result) {
      $fields = $result->toArray();
       $output .= $modx->getChunk('ShowData', $fields);
     }
    }else {
     return 'No items found.';
    }
}
return $output;

class MyClass {
  /* @var xPDO $myDB */
  public $myDB = null;
  /* @var modX $modx */
  public $modx = null;

  public function __construct(&$modx, $options) {
    $this->modx = &$modx;
    $this->getConnection();
  }
  public function  getConnection() {
    $host = 'IPAddress';
    $username = 'Username';
    $password = 'Password';
    $dbname = 'DBName';
    $port = 3306;
    $charset = 'utf-8';

    $dsn = "mysql:host=$host;dbname=$dbname;port=$port;charset=$charset";
    $this->myDB = new xPDO($dsn, $username, $password);

    $this->modx->log(modX::LOG_LEVEL_ERROR, ($modx->myDB->connect()) ? 'Connected </br>' : 'Not Connected' );

    $path = MODX_CORE_PATH . 'components/nhs/';
    if (!$this->myDB->addPackage('packageName', $path . 'model/')) {
      $this->modx->log(modX::LOG_LEVEL_ERROR, 'There was a problem adding your package.');
    };
  }
}

$modx->getService('myclass','MyClass', MODX_CORE_PATH . '/components/myclass/model/myclass.class.php');
$modx->myclass->myDB->getCollection();

[[dbconnect]]
[[dbform]]

[[!dbconnect]]
[[!dbform]]

<?php
if (isset($_POST['search'])) {
 
    $search = $_POST['search'];
  
    $modx->getService('myclass','MyClass', MODX_CORE_PATH . '/components/packagename/model/packagename/myclass.class.php');
    $results = $modx->myclass->myDB->getCollection('LogData',array('diallednumber' => $search));
 
    if ($results) {
       $output ='';
     foreach($results as $result) {
      $fields = $result->toArray();
       $output .= $modx->getChunk('ShowData', $fields);
     }
    }else {
     return 'No items found.';
    }
}
return $output;

	$modx->getService('myclass','MyClass', MODX_CORE_PATH . '/components/myclass/model/myclass.class.php');

$modx->getService('myclass','MyClass', MODX_CORE_PATH . 'components/nhs/model/nhs/myclass.class.php');