Add Doctrine Connection factory

[MAILPOET-2014]

lib/DI/ContainerConfigurator.php

@@ -91,6 +91,11 @@ class ContainerConfigurator implements IContainerConfigurator {
     $container->register(\MailPoet\Config\Renderer::class)
       ->setPublic(true)
       ->setFactory([new Reference(\MailPoet\Config\RendererFactory::class), 'getRenderer']);
+    // Doctrine
+    $container->autowire(\MailPoet\Doctrine\ConnectionFactory::class);
+    $container->autowire(\MailPoetVendor\Doctrine\DBAL\Connection::class)
+      ->setFactory([new Reference(\MailPoet\Doctrine\ConnectionFactory::class), 'createConnection'])
+      ->setPublic(true);
     // Cron
     $container->autowire(\MailPoet\Cron\Daemon::class)->setPublic(true);
     $container->autowire(\MailPoet\Cron\DaemonHttpRunner::class)->setPublic(true);

lib/Doctrine/ConnectionFactory.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace MailPoet\Doctrine;
+
+use MailPoet\Config\Env;
+use MailPoetVendor\Doctrine\DBAL\Configuration;
+use MailPoetVendor\Doctrine\DBAL\DriverManager;
+use MailPoetVendor\Doctrine\DBAL\Platforms\MySqlPlatform;
+
+class ConnectionFactory {
+  const DRIVER = 'pdo_mysql';
+  const PLATFORM_CLASS = MySqlPlatform::class;
+
+  function createConnection() {
+    $platform_class = self::PLATFORM_CLASS;
+    $connection_params = [
+      'driver' => self::DRIVER,
+      'platform' => new $platform_class,
+      'host' => Env::$db_host,
+      'port' => Env::$db_port,
+      'socket' => Env::$db_socket,
+      'user' => Env::$db_username,
+      'password' => Env::$db_password,
+      'charset' => Env::$db_charset,
+      'dbname' => Env::$db_name,
+    ];
+    return DriverManager::getConnection($connection_params);
+  }
+}

tests/integration/Doctrine/ConnectionFactoryTest.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace MailPoet\Test\Config;
+
+use MailPoet\Config\Env;
+use MailPoet\Doctrine\ConnectionFactory;
+use MailPoetVendor\Doctrine\DBAL\Driver\PDOMySql;
+use MailPoetVendor\Doctrine\DBAL\Platforms\MySqlPlatform;
+use PDO;
+
+class ConnectionFactoryTest extends \MailPoetTest {
+  function testItSetsUpConnection() {
+    $connection_factory = new ConnectionFactory();
+    $connection = $connection_factory->createConnection();
+
+    expect($connection->getWrappedConnection())->isInstanceOf(PDO::class);
+    expect($connection->getDriver())->isInstanceOf(PDOMySql\Driver::class);
+    expect($connection->getDatabasePlatform())->isInstanceOf(MySqlPlatform::class);
+    expect($connection->getHost())->equals(Env::$db_host);
+    expect($connection->getPort())->equals(Env::$db_port);
+    expect($connection->getParams()['socket'])->equals(Env::$db_socket);
+    expect($connection->getUsername())->equals(Env::$db_username);
+    expect($connection->getPassword())->equals(Env::$db_password);
+    expect($connection->getParams()['charset'])->equals(Env::$db_charset);
+    expect($connection->getDatabase())->equals(Env::$db_name);
+  }
+}