/**
* Constructor
* Find the balance from the most recent transaction.
* If no balance is found, create an initial transaction.
*
* @param object &$db Database
* @param integer $uid User ID
* @return void
*/
public function __construct(&$db, $uid)
{
$this->_db = $db;
$this->uid = $uid;
$BA = new Account($this->_db);
if ($BA->load_uid($this->uid)) {
$this->balance = $BA->balance;
$this->earnings = $BA->earnings;
$this->credit = $BA->credit;
} else {
// no points are given initially
$this->balance = 0;
$this->earnings = 0;
$this->credit = 0;
$this->_saveBalance('creation');
}
}
