Get more logged-in information in Zend Framework2 - authentication

Question

I'm implementing a log-in form by using Zend Framework 2.
I have a "user" table in mysql database: user(user_id INT AUTO_INCREMENT,email-address, password).
The user will input email-address and password.
My web application will call authenticate() method with the identity is email-address, the credential is password.
If the validation success, getIdentity() return the email-address.
But not only the email-address, I want to know the user_id field to use for other query after logged-in.
How can I get more information in my "user" table?
I don't want to query from database twice. (once for authentication, once for user_id).
Do you have any suggestion?
Thanks.

Answer 1

Just authenticate the correct user call the AuthenticationService and the method getStorage with will return you the storage container for the current user. just pass a object or your user entity in this and after calling $this->identity() you should become your custom identity object.
$authService = $this->getServiceManager('Zend\Authentication\AuthenticationService');
if ( // user auth success ) {
$userObject = array(
'foo' => 'bar',
'baz' => 'bas'
);
$authService->getStorage()->write( $userObject );
}
now by calling $this->identity() u get the following output
var_dump( $this->identity() );
//output
array(
'foo' => 'bar',
'baz' => 'bas'
)

Answer 2

Sometime like this
// Set the input credential values (e.g., from a login form)
$authAdapter
->setIdentity('my_username')
->setCredential('my_password')
// Print the result row
print_r($authAdapter->getResultRowObject());
/* Output:
user table
Array
(
[user_id] => 1
[email-address] => my_username
[password] => my_password
)
Also read more manual: http://framework.zend.com/manual/current/en/modules/zend.authentication.adapter.dbtable.html