Chapter 9. Databases

With the Rails framework providing a simple ORM that abstracts many of the database details away from the developer, the database is an afterthought for many Rails developers. While the power of the framework has made this okay to a certain extent, there are important database and Rails-specific considerations that you shouldn’t overlook.

AntiPattern: Messy Migrations

Ruby on Rails database migrations were an innovative solution to a real problem faced by developers: How to script changes to the database so that they could be reliably replicated by the rest of the team on their development machines as well as deployed to the production servers at the appropriate time. Before Rails and its baked-in solution, developers ...

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