CODE EXAMPLE FOR PHP

laravel mutators

class Video extends Model
{
    public function setDurationInMinutesAttribute($value)
    {
        $this->attributes['duration_in_seconds'] = $value * 60;
    }

    public function setDurationInHoursAttribute($value)
    {
        $this->attributes['duration_in_seconds'] = $value * 60 * 60;
    }
}