/**
* User-defined array sorting callback, used for sorting $attachments_info.
*
* See the usort() documentation for further details.
*
* @access protected
* @param Array $a The first attachment info array.
* @param Array $b The second attachment info array.
* @return int A value according to the rules from strcmp().
*/
static function _sort_attachments_info_callback($a, $b)
{
return midcom_helper_datamanager2_type_blobs::sort_attachments_cmp($a['object'], $b['object']);
}
/**
* User-defined array sorting callback, used for sorting $images. See the
* usort() documentation for further details.
*
* @access protected
* @param array $a The first image list.
* @param array $b The second image list.
* @return int A value according to the rules from strcmp().
* @todo compare based on metadata->score and filename (or title ???)
*/
function _sort_images_callback($a, $b)
{
// safety against broken images
if (!empty($a['main']['object']) && !empty($b['main']['object'])) {
$a_obj = $a['main']['object'];
$b_obj = $b['main']['object'];
} else {
// Try to read the sort values from some other key
if (is_array($a) && is_array($b)) {
foreach ($a as $key => $data) {
if (!empty($a[$key]['object']) && !empty($b[$key]['object'])) {
$a_obj = $a[$key]['object'];
$b_obj = $b[$key]['object'];
}
}
}
}
if (empty($a_obj) && empty($b_obj)) {
return 0;
}
return midcom_helper_datamanager2_type_blobs::sort_attachments_cmp($a_obj, $b_obj);
}
