[jhoffner]

Something that I need to call out here. In talking about how to handle the lack of fixed schemas within Mongo, the OP refers to using if/else blocks to get around field name changes. This shows a severe lack of understanding of how to work with Mongo at such a fundamental level. If using Mongoid (which he is) you simply need to run `Post.all.rename(title: :post_title)` to do the schema change. This may seem like a nitpick to some people, but honestly if that concept was lost on the developer then its clear that there is little to no credibility to be had in the reporting of all the other Mongo issues.

I'm glad that the OP is growing as a developer and starting to understand the merits of SQL and why having defined schemas is important. SQL is awesome and its not going to be replaced by NoSQL (at least not fully). However please make sure that you are building the foundation of your understanding by fully grasping the technologies that you are already using.