diff --git a/includes/class-FullEvent.php b/includes/class-FullEvent.php
index be0cc1c..aa7bbda 100644
--- a/includes/class-FullEvent.php
+++ b/includes/class-FullEvent.php
@@ -1,207 +1,207 @@
 <?php
 # Linux Day 2016 - Construct a database event (full of relations)
 # Copyright (C) 2016, 2017, 2018, 2019 Valerio Bozzolan, Ludovico Pavesi, Linux Day Torino
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
 # (at your option) any later version.
 #
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU Affero General Public License for more details.
 #
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 class_exists('Event');
 class_exists('Conference');
 class_exists('Location');
 class_exists('Room');
 class_exists('Chapter');
 class_exists('Track');
 
 trait FullEventTrait {
 
 	/**
 	 * Check if the Event has a permalink
 	 *
 	 * @return bool
 	 */
 	public function hasEventPermalink() {
 		return $this->has( Conference::UID ) &&
 		       $this->has( Event     ::UID ) &&
 		       $this->has( Chapter   ::UID );
 	}
 
 	/**
 	 * Get the Event URL
 	 *
 	 * @param boolean $absolute Set to true to force an absolute URL
 	 * @return string
 	 */
 	public function getEventURL( $absolute = false ) {
 		return FullEvent::permalink(
 			$this->getConferenceUID(),
 			$this->getEventUID(),
 			$this->getChapterUID(),
 			$absolute
 		);
 	}
 
 	/**
 	 * Create a Query to find the next Event in the same Room
 	 *
 	 * @return Query
 	 */
 	public function factoryNextFullEvent() {
 		$date = $this->getEventEnd( 'Y-m-d H:i:s' );
 		return $this->factoryFullEventInSameContext()
 			->whereStr( 'event_start', $date, '>=' )
 			->orderBy(  'event_start', 'ASC' );
 	}
 
 	/**
 	 * Create a Query to find the previous Event in the same Room
 	 *
 	 * @return Query
 	 */
 	public function factoryPreviousFullEvent( $compare = '<=' ) {
 		$date = $this->getEventStart( 'Y-m-d H:i:s' );
 		return $this->factoryFullEventInSameContext()
 			->whereStr( 'event_end', $date, '<=' )
 			->orderBy(  'event_end', 'DESC' );
 	}
 
 	/**
 	 * Get the edit URL for this FullEvent
 	 *
 	 * @param  boolean $absolute Flag to require an absolute URL
 	 * @return string
 	 */
 	public function getFullEventEditURL( $absolute = false ) {
 		return FullEvent::editURL( [
 			'uid'        => $this->getEventUID(),
 			'conference' => $this->getConferenceUID()
 		], $absolute );
 	}
 
 	private function factoryFullEventInSameContext() {
 		return FullEvent::factory()
 			->whereInt( 'event.conference_ID', $this->getConferenceID() )
 			->whereInt( 'event.room_ID',       $this->getRoomID() );
 	}
 }
 
 /**
  * An Event with all the bells and whistles
  */
 class FullEvent extends Queried {
 	use FullEventTrait;
 	use EventTrait;
 	use ConferenceTrait;
 	use LocationTrait;
 	use ChapterTrait;
 	use RoomTrait;
 	use TrackTrait;
 
 	public function __construct() {
 		$this->normalizeEvent();
 		$this->normalizeConference();
 		$this->normalizeChapter();
 		$this->normalizeRoom();
 		$this->normalizeTrack();
 	}
 
 	/**
 	 * Query constructor
 	 *
 	 * @return Query
 	 */
 	public static function factory() {
 		return ( new QueryEvent() )
 			->select( Conference::fields() )
 			->select( Event     ::fields() )
 			->select( Track     ::fields() )
 			->select( Chapter   ::fields() )
 			->select( Room      ::fields() )
 			->joinConference()
 			->joinTrackChapterRoom()
 			->defaultClass( __CLASS__ );
 	}
 
 	static function factoryByConference( $conference_ID ) {
 		return self::factory()
 			->whereInt( Event::CONFERENCE_, $conference_ID );
 	}
 
 	/**
 	 * @deprecate Use self::factoryFromConferenceAndUID() instead
 	 */
 	static function factoryByConferenceAndUID( $conference_ID, $event_uid ) {
 		$event_uid = Event::sanitizeUID( $event_uid );
 
 		return self::factoryByConference( $conference_ID )
 			->whereStr( Event::UID, $event_uid );
 	}
 
 	/**
 	 * Factory from a Conference object and the Event UID
 	 *
 	 * @param object $conference
 	 * @param string $event_uid
 	 * @return Query
 	 */
 	public static function factoryFromConferenceAndEventUID( $conference, $event_uid ) {
 		$event_uid =  Event::sanitizeUID( $event_uid );
 		$conference_ID = $conference->getConferenceID();
 		return self::factoryByConference( $conference_ID )
 			->whereStr( Event::UID, $event_uid );
 	}
 
 	static function queryByConferenceAndUID( $conference_ID, $event_uid ) {
 		return self::factoryByConferenceAndUID( $conference_ID, $event_uid )
 			->queryRow();
 	}
 
 	static function factoryByUser( $user_ID ) {
 		return self::factory()
 			->from(     EventUser::T                  )
 			->equals(   EventUser::EVENT_, Event::ID_ )
 			->whereInt( EventUser::USER_,  $user_ID   )
 			->orderBy(  EventUser::ORDER              );
 	}
 
 	static function factoryByConferenceChapter( $conference_ID, $chapter_ID ) {
 		return self::factoryByConference( $conference_ID )
 			->whereInt( Event::CHAPTER_, $chapter_ID );
 	}
 
 	/**
 	 * Get an absolute FullEvent permalink
 	 *
 	 * @param $conference_uid string Conference UID
 	 * @param $event_uid string Event UID
 	 * @param $chapter_uid string Chapter UID
 	 * @param string $absolute Force an absolute URL
 	 * @return string
 	 */
 	public static function permalink( $conference_uid, $event_uid, $chapter_uid, $absolute = false ) {
 		$url = sprintf( PERMALINK_EVENT, $conference_uid, $event_uid, $chapter_uid ) ;
 		$url = site_page( $url, $absolute );
 		return keep_url_in_language( $url );
 	}
 
 	/**
 	 * Get the edit URL to a FullEvent
 	 *
 	 * @param  array   $args     Arguments for the edit page
 	 * @param  boolean $absolute Flag to require an absolute URL
 	 * @return string
 	 */
 	public static function editURL( $args, $absolute = false ) {
-		$url = http_build_get_query( '/2016/event-edit.php', $args );
-		return site_page( $url, $absolute );
+		$url = site_page( ADMIN_URL . '/edit.php', $absolute );
+		return http_build_get_query( $url, $args );
 	}
 }