Collections + добавление документа

<?php
    $doc = $modx->getObject('modResource',array('id'=>$hook->getValue('resource_id')));
    if (empty($doc)){
    $doc = $modx->newObject('modResource');
    $doc->set('createdby', $modx->user->get('id'));
    }
    else{
    $doc->set('editedby', $modx->user->get('id'));
    }
    $allFormFields = $hook->getValues();
    foreach ($allFormFields as $field=>$value)
    {
    if ($field !== 'spam' && $field !== 'resource_id'){
    $doc->set($field, $value);
    }
    }
    $alias = $doc->cleanAlias($fields['pagetitle']);
    if($modx->getCount(modResource, array('alias'=>$alias))!= 0) {
    $count = 1;
    $newAlias = $alias;
    while($modx->getCount(modResource, array('alias'=>$newAlias))!= 0) {
    $newAlias = $alias;
    $newAlias .= '-' . $count;
    $count++;
    }
    $alias = $newAlias;
    }
    $doc->set('alias',$alias);
    $doc->set('template', $template);
    $doc->save();
    foreach ($allFormFields as $field=>$value)
    {
    if (!empty($value) && $tv = $modx->getObject('modTemplateVar', array ('name'=>$field)))
    {
    /* handles checkboxes & multiple selects elements */
    if (is_array($value)) {
    $featureInsert = array();
    while (list($featureValue, $featureItem) = each($value)) {
    $featureInsert[count($featureInsert)] = $featureItem;
    }
    $value = implode('||',$featureInsert);
    }
    $tv->setValue($doc->get('id'), $value);
    $tv->save();
    }
    }
    $modx->cacheManager->refresh();
    return true;