/**
* Attempt to construct an ODD object out of a XmlElement or sub-elements.
*
* @param XmlElement $element The element(s)
*
* @return mixed An ODD object if the element can be handled, or false.
*/
function ODD_factory(XmlElement $element)
{
$name = $element->name;
$odd = false;
switch ($name) {
case 'entity':
$odd = new ODDEntity("", "", "");
break;
case 'metadata':
$odd = new ODDMetaData("", "", "", "");
break;
case 'relationship':
$odd = new ODDRelationship("", "", "");
break;
}
// Now populate values
if ($odd) {
// Attributes
foreach ($element->attributes as $k => $v) {
$odd->setAttribute($k, $v);
}
// Body
$body = $element->content;
$a = stripos($body, "<![CDATA");
$b = strripos($body, "]]>");
if ($body && $a !== false && $b !== false) {
$body = substr($body, $a + 8, $b - ($a + 8));
}
$odd->setBody($body);
}
return $odd;
}
/**
* Export this relationship
*
* @return array
* @deprecated 1.9 Use toObject()
*/
public function export()
{
elgg_deprecated_notice(__METHOD__ . ' has been deprecated', 1.9);
$uuid = get_uuid_from_object($this);
$relationship = new ODDRelationship(guid_to_uuid($this->guid_one), $this->relationship, guid_to_uuid($this->guid_two));
$relationship->setAttribute('uuid', $uuid);
return $relationship;
}
/**
* Export this relationship
*
* @return array
*/
public function export()
{
$uuid = get_uuid_from_object($this);
$relationship = new ODDRelationship(guid_to_uuid($this->guid_one), $this->relationship, guid_to_uuid($this->guid_two));
$relationship->setAttribute('uuid', $uuid);
return $relationship;
}
/**
* Extract entities from the system log and produce them as an OpenDD stream.
* This stream can be subscribed to and reconstructed on another system as an activity stream.
*
* @param int $by_user The user who initiated the event.
* @param string $relationship Limit return results to only those users who $by_user has $relationship with.
* @param int $limit Maximum number of events to show
* @param int $offset An offset
* @return ODDDocument
*/
function get_river_entries_as_opendd($by_user = "", $relationship = "", $limit = 10, $offset = 0)
{
global $CONFIG;
$limit = (int) $limit;
$offset = (int) $offset;
$relationship = sanitise_string($relationship);
if (is_array($by_user) && sizeof($by_user) > 0) {
foreach ($by_user as $key => $val) {
$by_user[$key] = (int) $val;
}
} else {
$by_user = array((int) $by_user);
}
// Get river data
$log_data = __get_river_from_log($by_user, $relationship, $limit, $offset);
// River objects
$river = new ODDDocument();
if ($log_data) {
foreach ($log_data as $log) {
$event = $log->event;
$class = $log->object_class;
$type = $log->object_type;
$subtype = $log->object_subtype;
$tmp = new $class();
$object = $tmp->getObjectFromID($log->object_id);
$by_user_obj = get_entity($log->performed_by_guid);
// Belts and braces
if ($object instanceof $class) {
$relationship_obj = NULL;
// Handle updates of entities
if ($object instanceof ElggEntity) {
$relationship_obj = new ODDRelationship(guid_to_uuid($log->performed_by_guid), $log->event, guid_to_uuid($log->object_id));
}
// Handle updates of metadata
if ($object instanceof ElggExtender) {
$odd = $object->export();
$relationship_obj = new ODDRelationship(guid_to_uuid($log->performed_by_guid), $log->event, $odd->getAttribute('uuid'));
}
// Handle updates of relationships
if ($object instanceof ElggRelationship) {
$odd = $object->export();
$relationship_obj = new ODDRelationship(guid_to_uuid($log->performed_by_guid), $log->event, $odd->getAttribute('uuid'));
}
// If we have handled it then add it to the document
if ($relationship_obj) {
$relationship_obj->setPublished($log->time_created);
$river->addElement($relationship_obj);
}
}
}
}
return $river;
}
