Campaign::activate

public function activate($isActivate = true)
{
	$this->set('ACTIVE', $isActivate ? 'Y' : 'N');
	$this->save();

	/*
	$result = MailingTable::update($this->getId(), ['ACTIVE' => $isActivate ? 'Y' : 'N']);
	if ($result->isSuccess())
	{
		$this->set('ACTIVE', 'Y');
	}
	else
	{
		$this->errors->add($result->getErrors());
	}
	*/

	return $this;
}