Nothing gives me more professional satisfaction than seeing my work being used for practical applications.
Here's the situation: when a change occurs on a node, you want to modify a bunch of related nodes accordingly. On my site, when a Job's state moves from "accepting proposals" to "in progress", I want to change all pending Job Offers (those that haven't been accepted yet) to "closed".
It's no secret that version control on Drupal is hard. Specifically, the problem of iteratively building a site on a staging server, then moving it to a running production system has been the source of countless wasted hours, lost data, pulled hair, blog posts, and modules promising a solution. On Twitter, some would say #drupal #migration #fail.
This post is not the answer to this problem. I just want to show actual code that helps with a small part of it, namely keeping views under version control.