Validator::extend('uuid', function ($attribute, $value, $parameters, $validator) {
return preg_match('/[a-f0-9]{8}-[a-f0-9]{4}-4[a-f0-9]{3}-(8|9|a|b)[a-f0-9]{3}-[a-f0-9]{12}/', $value);
});
Validator::extend('location', function ($attribute, $value, $parameters, $validator) {
return preg_match('/^-?d{1,2}.d{6,}s*,s*-?d{1,2}.d{6,}$/', $value);
});