"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...
FactoryBot allows to create traits from Enums since version 6.0.0 The automatic definition of traits for Active Record enum attributes...
Here is an ES5 object literal with two string properties and a function property: let user = { firstName: 'Max', lastName: 'Muster...
Let's say you want to merge the properties of two JavaScript objects: let a = { foo: 1, bar: 2 }
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...
An unresponsive service can be worse than a down one. It can tie up your entire system if not handled...
Speaker today is Henning Koch, Head of Development at makandra. This talk will be in German with English slides.
We use CarrierWave in many of our projects to store and serve files of various formats - mostly images. A common...
tl;dr Don't forget require 'English' if you use a named global such as $LAST_MATCH_INFO. Otherwise this...
We use the whenever gem to automatically update the crontab of the servers we deploy to. By default, whenever will...
This seems to be obvious, but you can expect Rake tasks to be called in RSpec. it 'deletes all Users...
In case you want to use pry with an older version of Ruby, you can try the following configurations.
Ruby and Rails have several methods for creating a new object that looks like another: clone, dup, deep_dup. When...
You can install rubygems 3.0.8 (released on February 18, 2020) to keep all the Gem::Specification#rubyforge_project deprecation warnings...
When you have many changes, and you want to spread them across different commits, here is a way to stage...
The linked GitHub repository is a bit like our "dev" cards deck, but groomed from a single person (Josh Branchaud...
In Active Record you can use named bindings in where-conditions. This helps you to make your code more readable...
Test-Driven Development (TDD) in its most dogmatic form (red-green-refactor in micro-iterations) can be tedious. It does...
Simplecov is a code coverage tool. This helps you to find out which parts of your application are not tested...