EventSerialization.php

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<?php

namespace Elgg\Notifications;

use ElggData;
use ElggEntity;
use stdClass;

trait EventSerialization {
    
    public function serialize() {
        $data = new stdClass();
        $data->action = $this->action;
        if ($this->object instanceof ElggData) {
            if ($this->object instanceof ElggEntity) {
                $data->object_id = $this->object->guid;
            } else {
                $data->object_id = $this->object->id;
            }
            $data->object_type = $this->object->getType();
            $data->object_subtype = $this->object->getSubtype();
        }
        if ($this->actor) {
            $data->actor_guid = $this->actor->guid;
        }
        return serialize($data);
    }

    public function unserialize($serialized) {
        $data = unserialize($serialized);
        if (isset($data->action)) {
            $this->action = $data->action;
        }
        if (isset($data->object_id) && isset($data->object_type)) {
            switch ($data->object_type) {
                case 'object' :
                case 'user' :
                case 'group' :
                case 'site' :
                    $this->object = get_entity($data->object_id);
                    break;
                case 'annotation' :
                    $this->object = elgg_get_annotation_from_id($data->object_id);
                    break;
                case 'metadata' :
                    $this->object = elgg_get_metadata_from_id($data->object_id);
                    break;
                case 'relationship' :
                    $this->object = get_relationship($data->object_id);
            }
        }
        
        if (isset($data->actor_guid)) {
            $this->actor = get_entity($data->actor_guid);
        }
    }

}