For a long time virtualenv was used to create isolated Python environments. This is not required anymore. Since Python 3.3...
This card shows an uncommon way to retrieve a file using selenium where JavaScript is used to return a binary...
Some rubygems come in platform-specific versions (i.e. "x86_64-linux") in addition to the usual "ruby" platform. This is...
If you want someone to be able to access your rails console, but don't want them to be able...
Debouncing a method call delays its execution until after a specified time has passed. If it's called again before...
You might know a few examples, where you configure some library via a block. One example is the Rails configuration...
This cards describes an example with a Github Client on how to keep your Rails application more maintainable by extracting...
This card is a short summary on different ways of assigning multiple attributes to an instance of a class.
Using Capistrano, we usually have some array configurations in the config/deploy.rb file, like set :linked_files, %w[config/database.yml], so in...
ActiveModel classes have a class method .human_attribute_name. This returns a human-readable form of the attribute: Person.human_attribute...
If you want to find out what type of network card is used for a given network interface on a...
I used two lab days to read the The framework field guide - Fundamentals, the first of a three part series...
When you mocked method calls in RSpec, they are mocked until the end of a spec, or until you explicitly...
When you are using PgBouncer with e.g. a Ruby on Rails application which uses different application_names for the PostgreSQL...
In Rails 7.1 it has become possible to annotate partials with the locals they expect: # partial _user_name.erb <%# locals: (user:) %>
While the Software Design Basics card tried to make a point about writing self explanatory code, it's still...
After an upgrade to rails 7 I noticed that async reindexing jobs of Searchkick were failing for Model.reindex(mode: :async...
If you are using the routing-filter gem in your Rails 7.1 app for managing URL segments for locales or...
tl;dr Do not use the option optional on association declarations with a symbol, lambda or proc. Explanation Association declarations...
As we're switching from PT to Linear, I've updated the existing bash script to work for commits that...
If you want to use rsync to transfer files that don't belong to your user to another system you...
shoelace is a library of web components. Here is a proof of concept how a integration (slightly different as the...
What is makandra cards? We are makandra, a team of 60 web developers, DevOps and UI/UX experts from Augsburg, Germany...
Raising errors for required and permitted attributes makes it easier to find errors in your application during development and in...