static function create($session_id)
{
if ($session_id == null || $session_id == '') {
echo 'A session_id is required.<br>';
return false;
}
if (!Workflow_Sessions::session_id_exists($workflow_name)) {
$expiration_date = date("YmdHis") + 1000000;
//add a day to it using the YmdHis format
$session_expiration = sprintf("%.0f", $expiration_date);
$insert_record = db_query("INSERT into {apiary_project_workflow_sessions} (session_id, session_expiration)\r\n\t VALUES ('%s', '%s')", $session_id, $session_expiration);
return $insert_record;
} else {
echo "Session ID already exists. <br>";
}
return false;
}
static function releaseImageLock($image_pid)
{
global $user;
$now = date("YmdHis");
$datastream_name = "status";
$datastream_label = "Image Status";
$session_id = $_SESSION['apiary_session_id'];
if ($session_id == '') {
$session_id = $_SESSION['apiary_cleared_session_id'];
}
$dom = FedoraObject::getManagedXMLDom($image_pid, $datastream_name);
if ($dom != false) {
if ($dom->getElementsByTagName('locked')->item(0)->nodeValue != "false") {
if (!empty($dom->getElementsByTagName('locked_session')->item(0)->nodeValue)) {
$locked_session = $dom->getElementsByTagName('locked_session')->item(0)->nodeValue;
if ($dom->getElementsByTagName('locked_by')->item(0)->nodeValue == $user->name && $locked_session == $session_id) {
$dom->getElementsByTagName('locked')->item(0)->nodeValue = "false";
} else {
if (false) {
//could add an override if the user has some admin right
} else {
$last_locked_time = $dom->getElementsByTagName('locked_time')->item(0)->nodeValue;
$apiary_timeout = variable_get('apiary_object_timeout', '1800');
$last_locked_timeout = $last_locked_time + $apiary_timeout;
if ($now > $last_locked_timeout || !Workflow_Sessions::active_session($locked_session)) {
$dom->getElementsByTagName('locked')->item(0)->nodeValue = "false";
} else {
//cannot unlock this record
return false;
}
}
}
}
}
$dom->getElementsByTagName('locked')->item(0)->nodeValue = "false";
} else {
//create status datastream!
$dom = AP_Image::generateImageStatusDom("false", $user->name, $now, $session_id);
}
//We don't get here if we fail
if (FedoraObject::createManagedXMLDom($image_pid, $datastream_name, $datastream_label, $dom)) {
include_once drupal_get_path('module', 'apiary_project') . '/workflow/include/search.php';
$search_instance = new search();
$search_instance->index($image_pid);
return FedoraObject::getManagedXMLDom($image_pid, $datastream_name);
}
}
static function isLockedExpired($locked_time, $locked_session)
{
$now = date("YmdHis");
$apiary_timeout = variable_get('apiary_object_timeout', '1800');
if ($now > $locked_time + $apiary_timeout) {
return true;
} else {
if (!Workflow_Sessions::active_session($locked_session)) {
return true;
} else {
return false;
}
}
}
function delete_session()
{
if (Workflow_Sessions::delete($_SESSION['apiary_session_id']) > 0) {
$_SESSION['apiary_session_id'] = '';
echo "success";
} else {
echo "failed";
}
}
