[SOLVED] xPDO Save not working

<?php

/* Add ah_postings package and throw an error if unsuccessful */
$path = MODX_CORE_PATH . 'components/ah_postings/';
$result = $modx->addPackage('ah_postings',$path . 'model/','vw_ah_pos_');

if (! $result) {
  $errorMsg='Failed to add package ';
  $hook->addError('error_message',$errorMsg); 
  return false;
}

/* Create new posting object & check if object was created or else throw an error */
$position = $modx -> newObject('Postings');

if (!is_object($position) || !($position instanceof xPDOObject)) {
    $errorMsg='Failed to create object of type:Postings ';
    $hook->addError('error_message',$errorMsg); 
    return false;
}

/* Set data from form */

$position->set('usr', $_POST['usr']);

/* Save data from form and throw out errors if fails */

if (!$position->save()) {
    $errorMsg='Failed to save data.';
    $hook->addError('error_message',$errorMsg); 
    return false;
}
else
    return true;

CREATE TABLE `vw_ah_pos_postings` (
  `id` int(10) unsigned NOT NULL auto_increment,
  `usr` int(10) unsigned NOT NULL,
  `department` varchar(255) character set latin1 NOT NULL,
  `duration` int(10) unsigned NOT NULL,
  `renumeration` int(1) unsigned NOT NULL,
  `apply-method` int(1) unsigned NOT NULL,
  `interns` int(100) NOT NULL,
  `date` varchar(10) character set latin1 NOT NULL,
  PRIMARY KEY  (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;

CREATE TABLE `vw_ah_pos_postings` (
  `id` int(10) unsigned NOT NULL auto_increment,
  `usr` int(10) unsigned default NULL,
  `department` varchar(255) character set latin1 default NULL,
  `duration` int(10) unsigned default NULL,
  `renumeration` int(1) unsigned default NULL,
  `apply-method` int(1) unsigned default NULL,
  `interns` int(100) unsigned default NULL,
  `date` varchar(10) character set latin1 default NULL,
  PRIMARY KEY  (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;

<?php

/* Get formit data and store in variables */
$db_usr = $hook->getValue('usr');
$db_department = $hook->getValue('department');
$db_duration = $hook->getValue('duration');
$db_renumeration = $hook->getValue('renumeration');
$db_applymethod = $hook->getValue('apply-method');
$db_interns = $hook->getValue('interns');
$db_date = $hook->getValue('date');

/* Add ah_postings package and throw an error if unsuccessful */
$path = MODX_CORE_PATH . 'components/ah_postings/';
$result = $modx->addPackage('ah_postings',$path . 'model/','vw_ah_pos_');

if (! $result) {
  $errorMsg='Failed to add package ';
  $hook->addError('error_message',$errorMsg); 
  return false;
}

/* Create new posting object & check if object was created or else throw an error */
$position = $modx -> newObject('Postings');

if (!is_object($position) || !($position instanceof xPDOObject)) {
    $errorMsg='Failed to create object of type:Postings ';
    $hook->addError('error_message',$errorMsg); 
    return false;
}

/* Set data from form */

$position -> set('usr', $db_usr);
$position -> set('department', $db_department);
$position -> set('duration', $db_duration);
$position -> set('renumeration', $db_renumeration);
$position -> set('apply-method', $db_applymethod);
$position -> set('interns', $db_interns);
$position -> set('date', $db_date);

/* Save data from form and throw out errors if fails */

if (!$position->save()) {
    $errorMsg='Failed to save data.';
    $hook->addError('error_message',$errorMsg); 
    return false;
}
else
  return true;