function renderRackThumb($rack_id = 0)
{
// Don't call DB extra times, hence we are most probably not the
// only script wishing to access the same data now.
if (NULL !== ($thumbcache = loadThumbCache($rack_id))) {
header("Content-type: image/png");
echo $thumbcache;
return;
}
ob_start();
if (FALSE !== generateMiniRack($rack_id)) {
$capture = ob_get_clean();
header("Content-type: image/png");
echo $capture;
usePreparedExecuteBlade('REPLACE INTO RackThumbnail SET rack_id=?, thumb_data=?', array($rack_id, base64_encode($capture)));
return;
}
// error text in the buffer
ob_end_flush();
}
function dispatchMiniRackThumbRequest($rack_id)
{
if (NULL !== ($thumbcache = loadThumbCache($rack_id))) {
header('Content-type: image/png');
echo $thumbcache;
return;
}
ob_start();
printRackThumbImage($rack_id);
$capture = ob_get_clean();
header('Content-type: image/png');
echo $capture;
usePreparedExecuteBlade('REPLACE INTO RackThumbnail SET rack_id=?, thumb_data=?', array($rack_id, base64_encode($capture)));
}
