course_settings.php

	// Total Unit Duration Count function starts
    public static function get_course_unit_durations(){

    	$course_curriculum = bp_course_get_curriculum($course_id);
		if(!empty($course_curriculum)){
			$duration=0;
			foreach($course_curriculum as $key => $item){		
				if(is_numeric($item)){ 
					$post_type = get_post_type( $item);
					if( $post_type == 'unit' && function_exists('bp_course_get_unit_duration')){
							if(bp_course_get_unit_duration($item)=='9999')
							{
								return '<li><strong class="tip" data-title="'._x("Total Unit + Quiz duration in this course","Course Detail Sidebar Unit Duration","vibe-customtypes").'">'._x("UNLIMITED","Course Detail Sidebar Unit Duration","vibe-customtypes").'</strong><i class="icon-clock-2"></i></li>';
							}
							$duration += bp_course_get_unit_duration($item);
						}else if($post_type == 'quiz' && function_exists('bp_course_get_quiz_duration')){
							if(bp_course_get_quiz_duration($item)=='9999')
							{
								return '<li><strong class="tip" data-title="'._x("Total Unit + Quiz duration in this course","Course Detail Sidebar Unit Duration","vibe-customtypes").'">'._x("UNLIMITED","Course Detail Sidebar Unit Duration","vibe-customtypes").'</strong><i class="icon-clock-2"></i></li>';
							}
							$duration += bp_course_get_quiz_duration($item);
						}
				}
			}
				return '<li><strong class="tip" data-title="'._x("Total Unit + Quiz duration in this course","Course Detail Sidebar Unit Duration","vibe-customtypes").'">'.tofriendlytime($duration).'</strong><i class="icon-clock-2"></i></li>';
		}
	}