Call to a member function DBAPI

<?php
function elements_modsnippet_38($scriptProperties= array()) {
global $modx;
if (is_array($scriptProperties)) {
extract($scriptProperties, EXTR_SKIP);
}
$temp = $modx->db->query('Select * From `modx_site_content` WHERE template=11');
while($row = $modx->db->getRow($temp))
{
  if($row['id'] == $rid)
  {
    $row = $modx->db->getRow($temp);
    $pt2 = $row['pagetitle'];
    if(isset($pt2)){$pt2 .= ">>";}
    $rid2 = $row['id'];
    break;
  }
  $pt1 = "<<".$row['pagetitle'];
  $rid1 = $row['id'];
}
$rid1 = "[[~".$rid1."]]";
$rid2 = "[[~".$rid2."]]";
$modx->setPlaceholder('PageTitle1',$pt1);
$modx->setPlaceholder('fid',$rid1);
$modx->setPlaceholder('PageTitle2',$pt2);
$modx->setPlaceholder('sid',$rid2);
$output = $modx->parseChunk('news_content_page', $modx->placeholders);
return $output;
}

$temp = $modx->getCollection('modResource', array('template' => 11));
foreach ($temp as $resource) {
  if ($resource->get('id') == $rid) {
    $row = $resource->toArray();
    $pt2 = $row['pagetitle'];
    if (isset($pt2)) { $pt2 .= ">>"; } // note that isset($pt2) is always true.. what's the point here??
    $rid2 = $row['id'];
    break;
  }
  $pt1 = "<<" . $resource->get('pagetitle');
  $rid1 = $resource->get('id');
}

$rid1 = "[[~".$rid1."]]";
$rid2 = "[[~".$rid2."]]";
$placeholders = array(
   'PageTitle1' => $pt1,
   'fid' => $rid1,
   'PageTitle2' => $pt2,
   'sid' => $rid2
);
$output = $modx->getChunk('news_content_page', $placeholders);
return $output;