This is a checklist I use to work on issues. For this purpose I extracted several cards related to the...
Rails partials have a lot of "hidden" features and this card describes some non-obvious usages of Rails Partials.
In the past we validate and set default values for boolean attributes in Rails and not the database itself.
HTTP header values must only contain low-ASCII (7-bit) characters for safe transport. From RFC 7230: Historically, HTTP has...
Not all email clients support external images in all situations, e.g. an image within a link. In some cases, a...
Carrierwave's BaseUploader can have some validations that you can use by overriding a certain method, which's expected name...
Since Rails 7 you are able to encrypt database information with Active Record. Using Active Record Encryption will store an...
Sometimes I ran across a GitHub merge request of a gem where it was not completely obvious in which version...
To retrieve only unique combinations of the selected attributes: You can omit rows, where all selected columns are equal with...
Du verstehst was eine Custom Resource ist und warum das nützlich sein kann. Du weißt, was ein Operator ist...
Du verstehst, warum man Healthchecks u.ä. haben möchte. Du weißt auch, dass solche Checks nicht exklusiv für Kubernetes...
A severe bug was found in ImageMagick by Bryan Gonzalez from Ocelot Team. It allows to embed the content of...
Rails includes milliseconds in Time / DateTime objects when rendering them as JSON: JSON.parse(User.last.to_json)['created_at'] #=> "2001-01-01...
vertical-align is hard. Have you ever wanted to vertically center an icon with text? This usually means "vertically align...
Im Kapitel 502 Eine Applikation als Container mit CI pipelines deployen hast du eine Applikation auf AWS deployed. In diesem...
Sometimes, the rails dev server doesn't terminate properly. This can for example happen when the dev server runs in...
Du weißt, was ConfigMaps und Secrets sind. Warum sollte man Secrets und ConfigMaps verwenden? Was ist GITOPS?
Du verstehst, welche Aufgaben der Kubernetes API Server übernimmt. Du weißt, wie der API Server in das Management des...
When you use the :as option to map a power to a controller method you can now override the generated...
How a macro can dynamically define a method that can be overridden with super in the same class.
After upgrading to Rails 6.1.7.2 one of our apps printed a wall of warnings while booting: /var/www/app/shared/bundle/ruby/2.6.0/gems/net-protocol-0.2.1/lib/net/protocol.rb:68: warning: already...
If you want to check the configuration of a running JVM process you can use jcmd. List the running processes...
If you have for e.g. a Java application which outputs multiline stack traces inside a container running in kubernetes you...
The linked article found a simple way to rewrite legacy git aliases to make them work with differently named default...