将mongodb连接到codeigniter 3上原理为2的数据库

Question

我们目前正在安排工作以完成我们的队形。我们项目的目标是改进我们公司现有的web应用程序，使用Codeigniter框架进行开发。该应用程序使用带有PhpMyAdmin的mysql数据库。我们必须在mongoDB和DoctrineODM中使用另一个数据库。我们从getcomposer安装Composer开始。我们使用Composer将Doctrine集成到使用此链接的解释的CodeIgniter中：http://blog.beheist.com/integrating-codeigniter-and-doctrine-2-orm-with-composer/之后，我们集成库mongoDB与此处解释的设置:mongoDB在尝试创建到数据库的连接后，我们的工作安置导师删除先前创建的bootstrap.php文件。我们还从这里将doctrine.php文件替换为DoctrineODM.php : github.com/openstepmedia/cibongo/blob/dev/bonfire/libraries/DoctrineODM.php我们对代码做了一些修改，因为我们没有使用Bonfire。

DoctrineODM.php

//phpinfo(); exit();


use Doctrine\Common\ClassLoader,
    Doctrine\ODM\MongoDB\Configuration,
    Doctrine\Common\Annotations\AnnotationReader,
    Doctrine\ODM\MongoDB\Mapping\Driver\AnnotationDriver,
    Doctrine\ODM\MongoDB\DocumentManager,
    Doctrine\MongoDB\Connection;
/**
 * Doctrine bootstrap library for CodeIgniter
 *
 * @author  Joseph Wynn <joseph@wildlyinaccurate.com>
 * @link    http://wildlyinaccurate.com/integrating-doctrine-2-with-codeigniter-2
 */
class DoctrineODM
   {
   public $em;    
   public $dm;
   public function __construct()
{
        require APPPATH.'config/doctrine.php';

        // With this configuration, your model files need to be in application/models/Entity
        // e.g. Creating a new Entity\User loads the class from application/models/Entity/User.php
        //$models_namespace = 'Documents';
    // Set up driver
        foreach (glob(APPPATH . 'modules/*', GLOB_ONLYDIR) as $m) {
            $module = str_replace(APPPATH . 'modules/', '', $m);
            $loader = new ClassLoader($module, APPPATH . 'modules');
            $loader->register();
        }



        $models = array(APPPATH . 'models');
        $loader = new ClassLoader('models/', $models);
        $loader->register();

        foreach (glob(APPPATH . 'modules/*/models', GLOB_ONLYDIR) as $m) {
            array_push($models, $m);
        }
        //$models_path = APPPATH . 'models';
        $proxies_dir = APPPATH . 'models/Proxies';
        $hydrators_dir = APPPATH . 'models/Hydrators';
        $metadata_paths = array(APPPATH . 'models');
        $config = new Configuration();
        $config->setDefaultDB($db['default']['database']);
        $config->setProxyDir($proxies_dir);
        $config->setProxyNamespace('Proxies');
        $config->setHydratorDir($hydrators_dir);
        $config->setHydratorNamespace('Hydrators');
        //$annotationDriver = $config->newDefaultAnnotationDriver(array($models_path . '/Documents'));
        $annotationDriver = $config->newDefaultAnnotationDriver($models);
        $config->setMetadataDriverImpl($annotationDriver);
        AnnotationDriver::registerAnnotationClasses();
        try {
        $connection = new Connection($db['default']['server'] );
            $this->dm = DocumentManager::create($connection, $config);
        } catch (Exception $ex) {
            var_dump($e->getMessage());
        }
        //$this->generate_classes();
}

也许这不是一个好的选择，但在那之后，连接(MongoClient)仍然是NULL。然后我们自己创建了类models/Entity/User.php来检查Doctrine是否正常工作。我们得到这个错误：

A PHP Error was encountered
Severity: Warning
Message: Cannot modify header information - headers already sent by (output started at /home/www/fast-mage/admin/applicationhiddenci/librariesKint/Kint.php:276)
Filename: core/Common.php
Line Number: 573

An uncaught Exception was encountered
Type: Doctrine\Common\Persistence\Mapping\MappingException
Message: Class 'User' does not exist
Filename: /home/www/fast-mage/admin/applicationhiddenci/vendor/doctrine/common/lib/Doctrine/Common/Persistence/Mapping/MappingException.php
Line Number: 96

我们现在阻塞了数据(服务器、主机名、id、…)，我们不知道从哪里查找的数据库在DocumentManager上，但MongoClient保持为NULL。感谢您的阅读，为我糟糕的英语感到抱歉，并感谢您的帮助。

Answer 1

错误是很明显的：

Class 'User' does not exist

你创建了你的User实体吗？