Front-end Form Date collision Warning

Thanks, I thought, that it should be something like that. How can I check if the event date already exists?

Thanks, i made it now like this with the em_event_validate filter and a ckeckbox field to ignore the collision
I used the fpllowing function to get the events which collide with the new one
$dateCollisionArray = EM_Events::get(array('scope'=>$startdate.','.$enddate));

add_filter('em_event_validate','my_em_validateFunction');
function my_em_validateFunction( $isValid ) {
	global $EM_Event;

	 $startdate = $EM_Event ->event_start_date;
	 $enddate = $EM_Event ->event_end_date;
	 $hasNoDateCollisionProblem = true;
	 $ignoreCollision = $EM_Event->event_attributes["Ignore date collision"] != "";
	 $dateCollisionArray = EM_Events::get(array('scope'=>$startdate.','.$enddate));
	 
	//Delete current event from collision array
	if(($key = array_search($EM_Event, $dateCollisionArray)) !== false) {
		unset($dateCollisionArray[$key]);
	}
	 
	 if($startdate != "" && count($dateCollisionArray)>0 && !$ignoreCollision){
		 $hasNoDateCollisionProblem = false;
		 $dateCollisionError = 'The event is at the same time as: <ul>';
		 foreach($dateCollisionArray as $collisionDate){
			 $eventStartDate = $collisionDate->event_start_date;
			 $eventEndDate = $collisionDate->event_end_date;
			 //make that the date is displayed properly
			$dateCollisionError .= '<li> '.implode('.', array_reverse(explode('-', $eventStartDate)));
			if($eventStartDate != $eventEndDate){
				$dateCollisionError .= ' - '.implode('.', array_reverse(explode('-', $eventEndDate)));
			}
			//EM_URI is th URL of the event directory,  slug is the URL name of the event, target="_blank" opens new tab
			$dateCollisionError .= ' <a target="_blank" href="'.EM_URI.'/'.$collisionDate->slug.'">'.$collisionDate->event_name.'</a></li>'; 
		 }
		 $dateCollisionError .= '</ul>';
		 $EM_Event->add_error($dateCollisionError);
	 }
	 return $isValid && $hasNoDateCollisionProblem;
}

• This reply was modified 8 years, 9 months ago by grebos.