function unserialize_recursive($str = '')
{
if (!is_string($str)) {
return $str;
} else {
$str = unserialize($str);
return unserialize_recursive($str);
}
}
/**
* Return all versions given a content ID; the most recent version can be found by sending (content_id, null, 1)
*/
public function get_all($content_id = 0, $version_datetime = null, $limit = null, $sq = '')
{
$ci =& get_instance();
// for use with the rdf_store
if (!empty($content_id)) {
$this->db->where('content_id', $content_id);
}
$this->db->order_by('version_num', 'desc');
if (!empty($version_datetime)) {
$this->db->where('created <=', $version_datetime);
}
// Don't run $sq here because it might return an older version than the most recent
if (!empty($limit)) {
$this->db->limit($limit);
}
$query = $this->db->get($this->versions_table);
$result = $query->result();
if (!empty($sq)) {
for ($j = count($result) - 1; $j >= 0; $j--) {
if (!self::filter_result_i($result[$j], $sq)) {
unset($result[$j]);
}
}
}
foreach ($result as $key => $value) {
$result[$key]->urn = $this->urn($result[$key]->version_id);
$result[$key]->attribution = unserialize_recursive($result[$key]->attribution);
$result[$key]->rdf = $ci->rdf_store->get_by_urn('urn:scalar:version:' . $result[$key]->version_id);
}
return $result;
}
