public function __construct($object = '', $description = '', $location = '')
{
$this->setId(-1);
$this->setObject($object);
$this->setDescription($description);
$this->setLocation($location);
$this->dateStart = new \DateTime();
$this->dateStart->add(new \DateInterval('P1D'));
$this->dateStart->setTime($this->dateStart->format('H'), $this->dateStart->format('i') - $this->dateStart->format('i') % 15, $this->dateStart->format('s'));
$this->dateEnd = new \DateTime();
$this->dateEnd->add(new \DateInterval('P1DT2H'));
$this->dateEnd->setTime($this->dateEnd->format('H'), $this->dateEnd->format('i') - $this->dateEnd->format('i') % 15, $this->dateEnd->format('s'));
$this->participants = new ArrayCollection();
$this->childs = new ArrayCollection();
}
