ActiveRecord provides the ids method to pluck ids from a scope, but what if you need to pluck Global IDs...

This is an extract from the linked article. It shows an approach on how to implement encrypted passwords with the...

CSS variables are very different from preprocessor variables. While preprocessors use variables to compile a static piece of CSS, CSS...

A flat folder structure can be cool if you have only a few folders but can be painful for huge...

When you use Sentry to monitor exceptions, an important feature is Sentry's error grouping mechanism. It will aggregate similar...

Rails middlewares are small code pieces that wrap requests to the application. The first middleware gets passed the request, invokes...

If you have a Ruby Pathname, you can use the method :/ to append filepaths to it. With this method, Ruby...

Ruby's File class has a handy method binary? which checks whether a file is a binary file. This method...

If you want to prevent that two processes run some code at the same time you can use the gem...

grep is the go-to CLI tool to accomplish tasks like filtering large files for arbitrary keywords. When additional context...

If you migrate a Rails application from Sprockets to Webpack(er), you can either transpile your CoffeeScript files to JavaScript...

CSP hat zum Ziel einen Browser-seitigen Mechanismus zu schaffen um einige Angriffe auf Webseiten zu verhindern, hauptsächlich XSS...

We're pleased to announce Ruby 3’s new language for type signatures, RBS. One of the long-stated goals...

4.0.0 2020-07-30 Compatible changes Improved documentation; README now includes command options. Improvement #90: geordi console, geordi deploy, geordi...

We use Sentry to be informed about different kinds of issues. One of the key features is that you are...

"Open-source software (OSS) is great. Anyone can use virtually any open-source code in their projects." Well, it depends...

If you have a :string or :text field, you should pair it with a model validation that restricts its length...

Nokogiri is great. It will even fix invalid HTML for you, like a browser would (e.g. move block elements out...

TL;DR PostgreSQL handles Rails 4+ text and string columns the same. Some libraries may still reflect on the column...

RubyMine has a HTTP Client that can be useful to test web APIs. Just create a .http scratch file an...

In a web application you sometimes have tasks that can not be processed during a request but need to go...

If you render markdown from user input, an attacker might be able to use this to inject javascript code into...

Speaker today is Henning Koch, Head of Development at makandra. This talk will be in German with English slides.