Declarative schema in Magento

So far we’ve created some templates, and messed around with the layout of blocks on pages, but it would be really neat to get some real data flowing onto this page. But before we can do that, we need to first learn about how to handle data in Magento. The first step in doing this is creating a database table, so we’re going to be switching gears a bit and work on setting up this database entity.

It seems everything in Magento is driven from XML files, and database tables are no exception. Magento used to use versioned installer scripts, but it was clunky to deal with multiple versions of ta...