/**
* Verify user name
* @param bool $fast Skip database checks
* @return null|string
*/
public function verifyLogin($fast = false)
{
if (!Users::isLoginNamesEnabled()) {
return null;
}
// check e-mail
if (!$this->ignoreEmpty) {
if ($this->login === '') {
return $this->failures['login'] = self::REGISTER_LOGIN_EMPTY;
} elseif (!self::isLoginValid($this->login)) {
return $this->failures['login'] = self::REGISTER_LOGIN_INVALID;
} elseif (strlen($this->login) < Users::getLoginMinChars()) {
return $this->failures['login'] = self::REGISTER_LOGIN_SHORT;
} elseif (strlen($this->login) > Users::getLoginMaxChars()) {
return $this->failures['login'] = self::REGISTER_LOGIN_LONG;
} elseif (!$fast and !self::isLoginAvailable($this->login)) {
return $this->failures['login'] = self::REGISTER_LOGIN_EXISTS;
} else {
return $this->successful['login'] = self::REGISTER_LOGIN_OK;
}
} elseif ($this->login !== '') {
if (!self::isLoginValid($this->login)) {
return $this->failures['login'] = self::REGISTER_LOGIN_INVALID;
} elseif (strlen($this->login) < Users::getLoginMinChars()) {
return $this->failures['login'] = self::REGISTER_LOGIN_SHORT;
} elseif (strlen($this->login) > Users::getLoginMaxChars()) {
return $this->failures['login'] = self::REGISTER_LOGIN_LONG;
} elseif (!$fast and !self::isLoginAvailable($this->login)) {
return $this->failures['login'] = self::REGISTER_LOGIN_EXISTS;
}
}
return null;
}
