Relational databases and object oriented languages have very different paradigms. Identity and relationships have distinct implementations. And the difficulty of creating and navigating data varies, both conceptually and performance-wise.
Speed bumps pop up when transferring data from a relational database to an object oriented model. It's tempting to let ORMs (e.g. Doctrine) hide this "object hydration" problem. Then one day, performance starts mattering. This talk will explore several solutions to the problem, and when to use them.
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[Lightning Talk] From a relational database to you
Luis Galeas caught the programming bug early in university. Ever since then, that is the one bug he can't get rid of. Nowadays, he works at Pushfor, building APIs with Symfony.