--- /dev/null
+<?php
+
+namespace Application\Migrations;
+
+use Doctrine\DBAL\Migrations\AbstractMigration;
+use Doctrine\DBAL\Schema\Schema;
+use Symfony\Component\DependencyInjection\ContainerAwareInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+class Version20161104073720 extends AbstractMigration implements ContainerAwareInterface
+{
+ /**
+ * @var ContainerInterface
+ */
+ private $container;
+
+ public function setContainer(ContainerInterface $container = null)
+ {
+ $this->container = $container;
+ }
+
+ private function getTable($tableName)
+ {
+ return $this->container->getParameter('database_table_prefix') . $tableName;
+ }
+
+ /**
+ * @param Schema $schema
+ */
+ public function up(Schema $schema)
+ {
+ switch ($this->connection->getDatabasePlatform()->getName()) {
+ case 'sqlite':
+ $this->addSql('CREATE INDEX `created_at` ON `'.$this->getTable('entry').'` (`created_at` DESC)');
+ break;
+
+ case 'mysql':
+ $this->addSql('ALTER TABLE '.$this->getTable('entry').' ADD INDEX created_at (created_at);');
+ break;
+
+ case 'postgresql':
+ $this->addSql('CREATE INDEX created_at ON '.$this->getTable('entry').' (created_at DESC)');
+ }
+ }
+
+ /**
+ * @param Schema $schema
+ */
+ public function down(Schema $schema)
+ {
+
+ }
+}