Category: Code

Defining a Module on a Class from an Included Module

Today, I came across a bug in our code that was introduced when two different Ruby classes included the same module. I had a constant declared within the module and thought I had it defined such that each class would include its own copy of the constant.

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Comparing Two Different Files with Git

Lately at my new gig, I’ve been working to eliminate duplicate code. As is typical with almost every project I have ever been involved in, my current project has accumulated lots of tech-debt. What starts as a simple cut and paste job for a hot fix and good intentions of fixing shortly afterwards results in countless near-duplicate files that only differ in a few key lines of logic.

I don’t trust myself to be able to simply eye the differences, so I looked into a way that I could get the differences between the two files as git would report it. I found the following solution posted on Stack Overflow:


I plan on using this approach initially to start eliminating some of the 18 layouts that exist in our project. Many of these layouts are near-identical, differing only in the javascripts and stylesheets they include, as well as potentially an extra conditional snippet of code or a yield statement. I am thinking I can combine the vast majority of these layouts into two or three different layouts. At the same time, I am preparing a gem to be able to handle similarities in layouts in general, and should have it released within the next two months. It will be part of a series of blog posts that I plan to release entitled “Building Reusable UI Components”. Stay tuned.

Strong-Like-Bull – A Lesson in Recursion


I’ve created a new gem called StrongLikeBull that suggests what parameters to permit in your strong parameters configuration based on what request parameters a controller action receives.

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For several years, I’ve thought about maintaining a blog but never sat down long enough to make it happen. Sure, I’d manage to get a few posts written before I lost interest and moved on to something else. I’m kinda ADD like that.

Well… I think it’s time for me to try again. I have watched for some time as my coworkers maintain their own tech blogs, are often linked to in Ruby Weekly and Hacker News, and even publish books. I wondered how they had enough energy to continue doing techie things after a long day at the office. Although I realize that there is pressure to stay on top of your game, I think also that they really enjoy writing, sharing, and learning on the side, particularly about the things they are most passionate about.

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