52b3e21969
initialize() is called sometimes, even when the following code doesn't need the targetPlatform property. Specifically, in AbstractClassMetadataFactory::getAllMetadata(). But as of DBAL 2.5.0, calling Connection::getDatabasePlatform() will make a connection to the database, which means that sometimes it may fail (e.g. you haven't configured your database yet). As a result, calling a method like AbstractClassMetadataFactory::getAllMetadata() - which does not need the targetPlatform - will fail, because determining the targetPlatform requires a connection, which fails. This avoids that - we only get the targetPlatform *when* we need it, which are cases where we're doing things that do indeed need a connection.
Doctrine 2 ORM
Master: 
2.3: 
2.2: 
2.1: 
Master: 
Doctrine 2 is an object-relational mapper (ORM) for PHP 5.3.2+ that provides transparent persistence for PHP objects. It sits on top of a powerful database abstraction layer (DBAL). One of its key features is the option to write database queries in a proprietary object oriented SQL dialect called Doctrine Query Language (DQL), inspired by Hibernates HQL. This provides developers with a powerful alternative to SQL that maintains flexibility without requiring unnecessary code duplication.