如何在 CodeIgniter 3 中安装 Doctrine [英] How to install Doctrine in CodeIgniter 3

问题描述

官方指南不完整，others 用于 CI2.

The official guide is not complete, and others are for CI2.

所以我给你一个我自己检查过的教程.

So i give you a tutorial i myself checked is working.

我知道鼓励用户回答他们自己的问题.

推荐答案

安装 Doctrine

(以下说明修改自:Doctrine 2 ORM 的文档 - 安装和配置)

Doctrine 可以通过 Composer 安装:

Doctrine can be installed with Composer:

1. 从您的命令行(例如 Windows:开始 > cmd)，切换到应安装文件的文件夹(例如 htdocs/my_project).

1. From your command line (e.g. Windows: Start > cmd), change to the folder where the files should be installed (e.g. htdocs/my_project).

使用 Composer 安装文件:

Use Composer to install the files:

一个.运行 C:>composer 安装学说/orm

或:

B.在您的 composer.json 文件中定义以下要求:

b. Define the following requirement in your composer.json file:

{
"require": {
    "doctrine/orm": "*"
  }
}

然后从命令行调用 composer install.

Composer 将安装一个文件夹 vendor，其中包含许多子文件夹和数百个 php 文件.将此 vendor 文件夹移动到您的 CodeIgniter 应用程序树中.为简单起见，您可以将其放在这里:

Composer will install a folder vendor with numerous sub-folders and several hundred php files. Move this vendor folder into your CodeIgniter application tree. For simplicity, you could put it here:

/application
    /config
    /controllers
    /libraries
       Doctrine.php <-- the doctrine bootstrap/wrapper file
    /third_party
/vendor  <-- the folder installed by Composer. don't touch the files or folders below it -- install all together as one happy family.
    /bin
    /composer
    /doctrine
    /symfony
    autoload.php  <-- Doctrine.php opens this to load its files

然后在您的库文件 Doctrine.php(见下文)中，您只需:

then in your library file Doctrine.php (see below) you would just:

require_once FCPATH . 'vendor/autoload.php';  // FCPATH is a CI constant specifies the path to the front controller.

您还可以将 vendor 中包含的所有文件夹和文件安装到其他地方，例如 third_party 并相应地调整您的 Doctrine.php.

You could also install all the folders and files contained inside vendor elsewhere, say in third_party and adjust your Doctrine.php accordingly.

与 CodeIgniter 集成

(以下说明修改自:Doctrine2 ORM 的文档 - 与 CodeIgniter 集成)

1. 创建您的 Doctrine 库:在您的文件夹 system/application/libraries 中，创建一个名为 Doctrine.php 的文件并将以下代码复制/粘贴到文件.这将成为 Doctrine2 实体管理器的包装器/引导程序.

1. Create your Doctrine library: In your folder system/application/libraries, create a file named Doctrine.php and copy/paste the following code into the file. This is going to be your wrapper/bootstrap for the Doctrine2 entity manager.

您的 Doctrine.php 库文件应如下所示(您可以根据需要对其进行自定义):

Your Doctrine.php library file should look like this (you may customize it to your needs):

<?php
/**
* Doctrine 2.4 bootstrap
*
*/

use DoctrineCommonClassLoader,
   DoctrineORMConfiguration,
   DoctrineORMEntityManager,
   DoctrineCommonCacheArrayCache,
   DoctrineDBALLoggingEchoSQLLogger;


class Doctrine {

   public $em = null;

   public function __construct()
   {
     // load database configuration from CodeIgniter
     require_once APPPATH.'config/database.php';

    // load Doctrine
    require_once FCPATH . 'vendor/autoload.php';

    // or, if you installed another way, you could:
    // require_once APPPATH.'third_party/Doctrine/Common/ClassLoader.php';

    // load the Doctrine classes        
    $doctrineClassLoader = new ClassLoader('Doctrine',  APPPATH.'libraries');
    // or, if installed in third_party: 
    // $doctrineClassLoader = new ClassLoader('Doctrine',  APPPATH.'third_party');
    $doctrineClassLoader->register();
    // load the entities
    $entityClassLoader = new ClassLoader('Entities', APPPATH.'models');
    $entityClassLoader->register();
    // load the proxy entities
    $proxiesClassLoader = new ClassLoader('Proxies', APPPATH.'models/proxies');
    $proxiesClassLoader->register();
    // load Symfony2 classes
    // this is necessary for YAML mapping files and for Command Line Interface (cli-doctrine.php)
    $symfonyClassLoader = new ClassLoader('Symfony',  APPPATH.'third_party/Doctrine');
    $symfonyClassLoader->register();

    // Set up the configuration
    $config = new Configuration;

    // Set up caches
    if(ENVIRONMENT == 'development'):  // set environment in index.php
        // set up simple array caching for development mode
        $cache = new DoctrineCommonCacheArrayCache;
    else:
        // set up caching with APC for production mode
        $cache = new DoctrineCommonCacheApcCache;  
    endif;
    $config->setMetadataCacheImpl($cache);
    $config->setQueryCacheImpl($cache);

    // set up annotation driver
    $driver = new DoctrineORMMappingDriverPHPDriver(APPPATH.'models/Mappings');
    $config->setMetadataDriverImpl($driver);

    // Proxy configuration
    $config->setProxyDir(APPPATH.'/models/Proxies');
    $config->setProxyNamespace('Proxies');

    // Set up logger (recommended to remove for production)
    $logger = new EchoSQLLogger;
    $config->setSQLLogger($logger);

    $config->setAutoGenerateProxyClasses( TRUE ); // only for development

    // Database connection information
    $connectionOptions = array(
        'driver' => 'pdo_mysql',
        'user' =>     $db['default']['username'],
        'password' => $db['default']['password'],
        'host' =>     $db['default']['hostname'],
        'dbname' =>   $db['default']['database']
    );

    // Create EntityManager, and store it for use in our CodeIgniter controllers
    $this->em = EntityManager::create($connectionOptions, $config);
  }
}

加载 Doctrine 库:要么通过将其添加到 application/config/autoload.php 文件中的数组来自动加载 Doctrine 库:

Load the doctrine library: either autoload your Doctrine library by adding it to the array in your application/config/autoload.php file:

'$autoload['libraries'] = array('doctrine');`

'$autoload[‘libraries’] = array(‘doctrine’);`

或者像任何其他库一样手动在控制器中加载它:

or load it manually in your controller like any other library by using:

$this->load->library('doctrine');

如果您在 applications/third_party 中安装了 Doctrine.php，您将使用:

If you installed Doctrine.php in applications/third_party, you would use:

$autoload['libraries'] = array('third_party/doctrine');

或

$this->load->library('third_party/doctrine');

下面的下一步中提供了一个示例控制器.

An example controller is provided below in What's next.

设置命令行工具

Doctrine 附带了许多在开发过程中非常有用的命令行工具.

Doctrine ships with a number of command line tools that are very helpful during development.

检查 Doctrine.php 文件中是否存在这些行，以加载 Symfony 类以使用命令行工具(以及 YAML 映射文件):

Check if these lines exists in the Doctrine.php file, to load Symfony classes for using the Command line tools (and for YAML mapping files):

$symfonyClassLoader = new ClassLoader('Symfony', APPPATH.'third_party/Doctrine');
$symfonyClassLoader->register();

您需要通过在应用程序目录中创建一个包含以下内容的 cli-doctrine.php 文件，将您的应用程序 EntityManager 注册到控制台工具以使用这些任务:

You need to register your applications EntityManager to the console tool to make use of the tasks by creating a cli-doctrine.php file in the application directory with the following content:

 <?php

 /**
 * Doctrine CLI bootstrap for CodeIgniter
 *
 */

 define('APPPATH', dirname(__FILE__) . '/');
define('BASEPATH', APPPATH . '/../system/');
define('ENVIRONMENT', 'development');

 require APPPATH.'libraries/Doctrine.php';

$doctrine = new Doctrine;
$em = $doctrine->em;

 $helperSet = new SymfonyComponentConsoleHelperHelperSet(array(
    'db' => new DoctrineDBALToolsConsoleHelperConnectionHelper($em->getConnection()),
    'em' => new DoctrineORMToolsConsoleHelperEntityManagerHelper($em)
));

 DoctrineORMToolsConsoleConsoleRunner::run($helperSet);

 ?>

现在通过 PHP 命令行运行此脚本，应该会看到可用的命令列表.

Now run this script through the PHP command-line and should see a list of commands available to you.

php cli-doctrine.php

从数据库生成映射类:

php cli-doctrine.php orm:convert-mapping --from-database annotation models/Entities

如果您收到此错误:致命错误:调用未定义的函数 DoctrineCommonCacheapc_fetch()为 PHP 安装 APC 扩展:

if you get this error: Fatal error: Call to undefined function DoctrineCommonCacheapc_fetch() install the APC extension for PHP:

sudo apt-get install php-apc
sudo /etc/init.d/apache2 restart

<小时>

对于生产模式:Doctrine 建议更改 Doctrine.php 中的以下设置:- 使用真正的缓存系统，如 APC- 禁用 EchoSqlLogger- 关闭 autoGenerateProxyClasses

---

For production mode: Doctrine recommends changing the following settings in Doctrine.php: - use a real caching system like APC - disable EchoSqlLogger - turn off autoGenerateProxyClasses

接下来是什么

要在 CI 中使用 Doctrine，请从控制器中调用它，例如:

To use Doctrine in CI, call it from a controller, for example:

application/controllers/my_controller.php:

application/controllers/my_controller.php:

function doctrine_orm()
{
    $this->load->library('Doctrine');
    $em = $this->doctrine->em;

    // do Doctrine stuff
    $productRepository = $em->getRepository('Product');
    $products = $productRepository->findAll();
    foreach ($products as $product):
        echo sprintf("-%s
", $product->getName());
    endforeach;
}

然而，在做任何 Doctrine 的东西之前，你必须首先将你的数据库表映射到 Doctrine实体".在此处了解操作方法:https://www.doctrine-project.org/projects/doctrine-orm/en/2.6/tutorials/getting-started.html

Before doing any Doctrine stuff, however, you must first map your database tables to Doctrine "entities". Learn how here: https://www.doctrine-project.org/projects/doctrine-orm/en/2.6/tutorials/getting-started.html

这篇关于如何在 CodeIgniter 3 中安装 Doctrine的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！