Zend TableGateway can't execute 2 consecutive query - zend-framework

Question

It's been weeks since I start learning Slim using Zend TableGateway from slim-api-skeleton.
It seems I can't run 2 consecutive query using TableGateway. It's always produce (not just UPDATE):
"Statement couldn't be produced with sql: UPDATE `users` SET `last_access` = NOW() WHERE `id` = ?"
Here's the code inside ZendUserRepository class:
public function __construct(array $config) {
$adapter = new Adapter($config);
$this->table = new TableGateway("users", $adapter);
}
...
public function footprint(int $id): void {
$data = ['last_access' => new Predicate\Expression('NOW()')];
$where = ['id' => $id];
$this->table->update($data, $where);
}
public function authenticate(string $username, string $password): bool {
$where = [
'username' => $username,
new Predicate\IsNotNull('roles')
];
$rowset = $this->table->select($where);
if (null === $row = $rowset->current()) {
return false;
}
$data = (array) $row;
if(password_verify($password, $data['password'])) {
$this->footprint($data['id']);
return true;
}
return false;
}
This frustrate me for days. Since the update function also use 2 consecutive query.
public function update(User $user): void {
$data = $this->hydrator->extract($user);
if (!$this->contains($user)) {
throw new UserNotFoundException;
}
$where = ["id" => $user->getId()];
$this->table->update($data, $where);
}
public function contains(User $user): bool {
try {
$this->get($user->getId());
} catch (UserNotFoundException $exception) {
return false;
}
return true;
}
Thank you.

Answer 1

Using PHPUnit test, I got the following result:
Zend\Db\Adapter\Exception\InvalidQueryException: Statement couldn't be produced with sql: UPDATE `users` SET `last_access` = NOW() WHERE `id` = ?
/vagrant/vendor/zendframework/zend-db/src/Adapter/Driver/Mysqli/Statement.php:208
/vagrant/vendor/zendframework/zend-db/src/Adapter/Driver/Mysqli/Statement.php:229
/vagrant/vendor/zendframework/zend-db/src/TableGateway/AbstractTableGateway.php:391
/vagrant/vendor/zendframework/zend-db/src/TableGateway/AbstractTableGateway.php:349
/vagrant/src/Infrastructure/ZendUserRepository.php:90
/vagrant/src/Infrastructure/ZendUserRepository.php:104
/vagrant/src/Application/User/UserAuthenticationHandler.php:19
/vagrant/tests/Application/User/UserAuthenticationHandlerTest.php:41
Caused by
Zend\Db\Adapter\Exception\ErrorException: Commands out of sync; you can't run this command now
And from google lead to https://stackoverflow.com/a/614741/3164944
You can't have two simultaneous queries because mysqli uses unbuffered queries by
default (for prepared statements; it's the opposite for vanilla
mysql_query). You can either fetch the first one into an array and
loop through that, or tell mysqli to buffer the queries (using $stmt->store_result()).
Solved with additional configuration:
[
"driver" => "Mysqli",
"database" => getenv("DB_NAME"),
"username" => getenv("DB_USER"),
"password" => getenv("DB_PASSWORD"),
"hostname" => getenv("DB_HOST"),
"charset" => "utf8",
'options' => ['buffer_results' => true],
]
From https://stackoverflow.com/a/43863554/3164944