/**
* Import an ODD document.
*
* @param string $xml The XML ODD.
*
* @return ODDDocument
*/
function ODD_Import($xml)
{
// Parse XML to an array
$elements = xml_to_object($xml);
// Sanity check 1, was this actually XML?
if (!$elements || !$elements->children) {
return false;
}
// Create ODDDocument
$document = new ODDDocument();
// Itterate through array of elements and construct ODD document
$cnt = 0;
foreach ($elements->children as $child) {
$odd = ODD_factory($child);
if ($odd) {
$document->addElement($odd);
$cnt++;
}
}
// Check that we actually found something
if ($cnt == 0) {
return false;
}
return $document;
}
/**
* 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;
}