A collection of my articles on technology, engineering, and products.
Sooner or later every project will need to migrate production data, not only the schema. There are many different approaches in the wild – most of them overly complex. In this article we’ll tackle the problem using vanilla Rails.
User authentication in Rails is a solved problem but how can we protect individual resources with a password? It turns out that all we need is vanilla Rails and not that much code.
Global state can easily lead to interference between test cases and cause random failures. In this article, we’ll discuss a technique for alleviating this problem when reducing the global state is infeasible.
Copying a file in a file manager results in adding a copy counter to the file name. In this article, we’ll devise a simple and elegant algorithm based on
Enumerator for doing the same in a Rails app.
Rails is known for many things but memory effectiveness is not one of them. By default, it loads all gems, used and unused, which contributes to the overall memory footprint. Fortunately, we can easily eliminate this waste without touching the app.
Single-page apps are all the rage nowadays. Many praise their vague technical benefits while ignoring tremendous development costs.
The larger the test suite the slower it gets. This is an obvious yet annying truth. In this article, I present a simple and generic technique for improving test suite performance (almost five-fold in my case) without touching the code base at all.
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