/**
* Returns the events, that a user is allowed to access
* The result is a list of associative arrays [column]=>[name]
* The user must posess:
* - correct mandant
* - access to correct topics
* - The event must be in future
*
* @param int $userID
*/
public static function getAvailableEventsForUser($userID)
{
global $wpdb;
$mandantID = EventDatabaseManager::getMandantID($userID);
$query = "SELECT * FROM datr_Events JOIN datr_User_has_Topics \n ON datr_Events.topicID = datr_User_has_Topics.topicID \n JOIN datr_Addresses ON datr_Addresses.addressID = datr_Events.addressID \n JOIN datr_User_has_Locations ON datr_User_has_Locations.locationID = datr_Addresses.locationID \n AND datr_User_has_Locations.userID = datr_User_has_Topics.userID \n WHERE datr_User_has_Topics.userID = {$userID} \n AND mandantID = {$mandantID} \n AND (date_time > NOW() OR eventType = 'elearning')\n AND event_visible = 1\n ORDER BY eventType, title_long \n ";
$res = $wpdb->get_results($query, ARRAY_A);
return EventDatabaseManager::getEventFullValuesArray($res);
}