Ruby On Rails

Tutorials

Avoiding Junk-Drawer Classes in Ruby

Avoiding Junk-Drawer Classes in Ruby Because Ruby is an object-oriented language, we tend to model the world as a set of objects. We say that two integers (x and y) are a Point, and a Line has two of them.While this approach is often useful, it has one big problem. It privileges one ...

[ALPHA] TraceSpy is a wrapper around TracePoint

[ALPHA] TraceSpy is a wrapper around TracePoint TraceSpy is a wrapper around TracePoint to expose more power in matching against various cases of Ruby and getting value from composable traces.I would suggest reading into Qo to get an idea of how the matchers work.

Using the Find module to count the LOC of a Rails application

Using the Find module to count the LOC of a Rails application In this post, we’re going to explore the content of this library and use it for counting the LOC* of a Rails application. This means that this library is packaged with Ruby and it’s available.Traversing a directory tree is a pretty common tasks in...

“!” and “?”: Understanding one of Ruby’s coolest naming conventions

“!” and “?”: Understanding one of Ruby’s coolest naming conventions First of all, from an implementation standpoint, naming a method with ! or? at the end has no effect in the method’s functionality. With that, I mean that a method whose name ends with these marks is just as ordinary as any other. You are not boun...

How ActionCable broke Puma

How ActionCable broke Puma Four few known facts that are often ignored:POSIX systems (Linux, BSD, macOS) use “file descriptors” for sockets.These file descriptors are a numerical value that usually translates to a kernel array index linked to the process.2. the select syste...

Best Practices for Optimizing Postgres Query Performance · pganalyze

Best Practices for Optimizing Postgres Query Performance · pganalyze Learn how to get a 3x performance improvement on your Postgres database and 500x reduced data loaded from disk. DBAs and developers use pganalyze to identify the root cause of performance issues, optimize queries and to get alerts about critical i...

Replace Timecop With Rails’ Time Helpers in RSpec

Replace Timecop With Rails’ Time Helpers in RSpec Time-sensitive tests can be a pain.Thankfully, for many years the timecop gem served as a way to “freeze” time and “time travel” during tests, so that any time that elapsed during the running of your tests did not affect the results.It’s such a go...

RSpec Mocks and Stubs in Plain English

RSpec Mocks and Stubs in Plain English One of the most common questions I see from beginners to Rails testing is what mocks and stubs are and when to use them. If you’re confused about mocks and stubs, you’re not alone. In my experience very few people understand them. In this post I’l...

ValueSemantics—A Gem for Making Value Classes

ValueSemantics—A Gem for Making Value Classes Today I am announcing ValueSemantics — a gem for making value classes. This is something that I’ve been using in my personal projects for a while, and I think it’s now ready for public use as of v3.0.In this article, I will give an overview of the...

Efficient and thread-safe code loader for Ruby

Efficient and thread-safe code loader for Ruby Zeitwerk is an efficient and thread-safe code loader for Ruby.Given a conventional file structure, Zeitwerk loads your project's classes and modules on demand. You don't need to write require calls for your own files, rather, you can streamline yo...

Get in Touch

Ruby On Rails Bosnia

[email protected]

[23551, 13706, 13941, 14212, 19117, 18554, 17466]