Kronolith_Resource_Group::isFree PHP Метод

    public function isFree(Kronolith_Event $event)
    {
        if (is_array($event)) {
            $start = $event['start'];
            $end = $event['end'];
        } else {
            $start = $event->start;
            $end = $event->end;
        }
        /* Get all resources that are included in this category */
        $resources = $this->get('members');
        /* Iterate over all resources until one with no conflicts is found */
        foreach ($resources as $resource_id) {
            $conflict = false;
            try {
                $resource = $this->_driver->getResource($resource_id);
            } catch (Horde_Exception_NotFound $e) {
                continue;
            }
            $busy = Kronolith::getDriver('Resource', $resource->get('calendar'))->listEvents($start, $end, array('show_recurrence' => true));
            /* No events at all during time period for requested event */
            if (!count($busy)) {
                $this->_selectedResource = $resource;
                return true;
            }
            /* Check for conflicts, ignoring the conflict if it's for the
             * same event that is passed. */
            if (!is_array($event)) {
                $uid = $event->uid;
            } else {
                $uid = 0;
            }
            foreach ($busy as $events) {
                foreach ($events as $e) {
                    if (!($e->status == Kronolith::STATUS_CANCELLED || $e->status == Kronolith::STATUS_FREE) && $e->uid !== $uid) {
                        if (!($e->start->compareDateTime($end) >= 0) && !($e->end->compareDateTime($start) <= 0)) {
                            // Not free, continue to the next resource
                            $conflict = true;
                            break 2;
                        }
                    }
                }
            }
            if (!$conflict) {
                /* No conflict detected for this resource */
                $this->_selectedResource = $resource;
                return true;
            }
        }
        /* No resource found without conflicts */
        return false;
    }