EDIT: Class Zend\Db\Adapter\Adapter not found - php

Question

I have a simple form which after submitting redirects to processAction inside AuthController and in this action I want to create a simple table bar.
EDITED:
Referring to Zend framerwork DB DDL update, I made a little modification in below code
AuthController.php
<?php
namespace Blog\Controller;
use Zend\Mvc\Controller\AbstractActionController;
use Zend\View\Model\ViewModel;
use Zend\Debug\Debug;
use Blog\Form\LoginForm;
use Zend\Authentication\AuthenticationService;
use Zend\Db\Adapter\AdapterInterface;
use Zend\Db\Sql\Sql;
use Zend\Db\Sql\Ddl;
use Zend\Db\Sql\Ddl\Column;
use Zend\Db\Sql\Insert;
use Zend\Authentication\Adapter\DbTable as DbTableAuthAdapter;
class AuthController extends AbstractActionController
{
protected $adapter;
public function getAdapter()
{
if (!$this->adapter) {
$sm = $this->getServiceLocator();
$this->adapter = $sm->get('Zend\Db\Adapter\Adapter');
}
return $this->adapter;
}
public function indexAction()
{
return new ViewModel();
}
public function processAction()
{
$DB = new \Zend\Db\Adapter\Adapter(array(
'driver' => 'Pdo',
'database' => 'blog',
'username' => 'root',
'password' => 'mysql'
));
$this->adapter = $this->getAdapter();
$sql = new Sql($this->adapter);
$table = new Ddl\CreateTable('bar');
$table->addColumn(new Column\Integer('id'));
$table->addColumn(new Column\Varchar('name', 255));
$table->setTable('bar');
$results = $this->adapter->query($sql->getSqlStringForSqlObject($table), $this->adapter ::QUERY_MODE_EXECUTE);
return new ViewModel();
}
}
global.php:
return array(
'db' => array(
'driver' => 'Pdo',
'dsn' => 'mysql:dbname=blog;host=localhost',
'driver_options' => array(
PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES \'UTF8\''
),
),
'service_manager' => array(
'factories' => array(
'Zend\Db\Adapter\Adapter'
=> 'Zend\Db\Adapter\AdapterServiceFactory',
),
),
);
Module.php
<?php
namespace Blog;
use Zend\ModuleManager\Feature\AutoloaderProviderInterface;
use Zend\ModuleManager\Feature\ConfigProviderInterface;
class Module implements AutoloaderProviderInterface,ConfigProviderInterface
{
public function getAutoloaderConfig()
{
return array(
'Zend\Loader\StandardAutoloader' => array(
'namespaces' => array(
__NAMESPACE__ => __DIR__ . '/src/' . __NAMESPACE__,
),
),
);
}
public function getConfig()
{
return include __DIR__ . '/config/module.config.php';
}
public function getServiceConfig()
{
return array(
'factories' =>array(
'Zend\Db\Adapter\Adapter' => function ($sm) {
$config = $sm->get('Config');
return new \Zend\Db\Adapter\Adapter($config['db']);
}
)
);
}
}
Problem:(Updated)
table bar is not created and shows error like
Fatal error: Class 'Blog\Controller\Zend\Db\Adapter\Adapter' not found
in /var/www/zend2/module/Blog/src/Blog/Controller/AuthController.php
on line 110
if I print
echo $sql->getSqlStringForSqlObject($table);
The query prints like this
CREATE TABLE `bar` ( `id` INTEGER NOT NULL, `name` VARCHAR(255) NOT NULL )
but table was not there.
Error occurs in below line of code as it is not able to identify adapter :
$results = $this->adapter->query($sql->getSqlStringForSqlObject($table), $this->adapter ::QUERY_MODE_EXECUTE);
But works in this way:
$results = $this->adapter->query($sql->getSqlStringForSqlObject($table), $DB ::QUERY_MODE_EXECUTE);
I am using Zend 2.4

Answer 1

I think you are trying to access non existing service. You can try to create a service factory:
config.php
<?php
return [
'db' => [
'driver' => 'Pdo',
'database' => 'blog',
'username' => 'root',
'password' => 'mysql'
]
];
Module.php
<?php
class Module
{
public function getServiceConfig()
{
return [
'factories' => [
'Zend\Db\Adapter\Adapter' => => function ($sm) {
$config = $sm->get('Config');
return new \Zend\Db\Adapter\Adapter($config['db']);
},
],
];
}
}
Then, you can access the service with the service manager:
AuthController.php
class AuthController extends AbstractActionController
{
public function getAdapter()
{
if (!$this->adapter) {
$sm = $this->getServiceLocator();
$this->adapter = $sm->get('Zend\Db\Adapter\Adapter');
}
return $this->adapter;
}
public function processAction()
{
$this->adapter = $this->getAdapter();
$sql = new Sql($this->adapter);
// other stuff here
}
}
You can find more examples here and here.

Answer 2

For beginners in ZF2 ,the query execute won't work if you don't instantiate class Zend\Db\Adapter\Adapter correctly.
I corrected like
$DB = new \Zend\Db\Adapter\Adapter(array(
'driver' => 'Pdo',
'database' => 'blog',
'username' => 'root',
'password' => 'mysql'
));
Also below line of code :
$results = $this->adapter->query($sql->getSqlStringForSqlObject($table), $DB ::QUERY_MODE_EXECUTE);
Ref Fatal error : class not found in Zend framework 2
Note: I still fail to understand why $this->adapter = $this->getAdapter(); not working instead of $DB.Any hint will be appreciated.