protected function createAndPersistData()
{
for ($i = 1; $i <= self::CONTACTS_COUNT; $i++) {
$contact = new Contact();
$contact->setName(sprintf('contact %s', $i));
$contact->setEmail(sprintf('*****@*****.**', $i));
$contact->setMobilePhone(rand(1111111111, 9999999999));
$contact->setPhone(rand(1111111111, 9999999999));
$this->manager->persist($contact);
$this->setReference(sprintf('contact_%s', $i), $contact);
}
}