Zend Framework 2无法创建PostgreSQL数据库适配器

Question

我正在尝试使用最新技术为学习目的设置一个新的Web应用程序:apache 2.4,PHP 5.4和PostgreSQL 9.1

我选择使用Zend Framework 2进行开发.

在我的主模块中,我定义了这个方法:

public function getServiceConfiguration() {
    return array(
        'factories' => array(
            'adapter' => function ($sm) {
                $config = $sm->get('config');
                $adapter = new Adapter($config['db']);

                return $adapter;
            }
        ),
    );
}

$ config ['db']在我的autoload/global.php中定义,其中包含:

return array(
    'db' => array(
        'driver' => 'PDO',
        'dsn' => 'pgsql:host=localhost;port=5436;user=root;password=myrootpwd',
    )
);

但是当我尝试调用$ serviceManager-> get('adapter')时,我得到一个异常说:

致命错误:未捕获的异常'Zend\Db\Adapter\Exception\InvalidArgumentException',消息'提供的或实例化的驱动程序对象未在C:\ Program Files\626Suite\application\library中实现Zend\Db\Adapter\Driver\DriverInterface'第294行\ Zend\ServiceManager\ServiceManager.php

Zend\Db\Adapter\Exception\InvalidArgumentException:提供的或实例化的驱动程序对象未在C:\ Program Files\626Suite\application\library\Zend\Db\Adapter\Adapter.php中实现Zend\Db\Adapter\Driver\DriverInterface在80号线上

调用堆栈:
0.0015 121600 1. {main}()C:\ Program Files\626Suite\application\data\script\install.php:0
0.5699 936080 2. Zend\ServiceManager\ServiceManager-> get(string(7),? ??)C:\ Program Files\626Suite\application\data\script\install.php:7
0.5700 936440 3. Zend\ServiceManager\ServiceManager-> create(array(2))C:\ Program Files\626Suite\application\library\Zend\ServiceManager\ServiceManager.php:277
0.5701 936520 4. Zend\ServiceManager\ServiceManager-> createServiceViaCallback(类Closure,string(7),string(7))C:\ Program Files\626Suite\application\library\Zend\ServiceManager\ServiceManager.php:353
0.5701 936672 5. call_user_func(类Closure,类Zend\ServiceManager\ServiceManager,string(7),string(7))C:\ Program Files\626Suite\application\library\Zend\ServiceManager\ServiceManager.php:543
0.5701 936696 6. Age\Module-> Age {closure}(类Zend\ServiceManager\ServiceManager,string(7),string(7))C:\ Program Files\626Suite\application\library\Zend\ServiceManager\ServiceManager.php:543
0.6 047 1024184 7. Zend\Db\Adapter\Adapter - > __ construct(类Zend\Config\Config,???,???)C:\ Program Files\626Suite\application\module\Age\Module.php:43

编辑:

我试图将工厂修改为:

public function getServiceConfiguration() {
    return array(
        'factories' => array(
            'adapter' => function ($sm) {
                $config = $sm->get('config');
                $PDO = new \PDO($config['db']['dsn']);
                $adapter = new Adapter($PDO);

                return $adapter;
            }
        ),
    );
}

我首先得到一个错误,说数据库"root"不存在,但在将我的配置更改为:

return array(
    'db' => array(
        'driver' => 'PDO',
        'dsn' => 'pgsql:host=localhost;port=5436;dbname=postgres;user=root;password=myrootpwd',
    )
);

我回到了获得之前描述的异常.

Answer 1

以下适用于我:

/config/autoload/database.global.php

return array(
'db' => array(
    'driver'    => 'Pdo',
    'dsn'       => "pgsql:host=127.0.0.1;dbname=mydb",
    'username'  => 'username',
    'password'  => 'mypass',
),
);

/module/Application/Module.php

public function getServiceConfiguration()
{
    return array(
        'factories' => array(
            'db_adapter' =>  function($sm) {
                $config = $sm->get('Configuration');
                $dbAdapter = new \Zend\Db\Adapter\Adapter($config['db']);
                return $dbAdapter;
            }
        ),
    );
}

然后你可以像这样使用它:

$sql = "SELECT * FROM table WHERE field=?";
$statement = $this->adapter->query($sql);
$res =  $statement->execute(array($var));