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...
In Rails 5+ you can access a helper from a controller using the helpers method: # Inside a controller action
To retrieve only unique combinations of the selected attributes: You can omit rows, where all selected columns are equal with...
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...
Sometimes, the rails dev server doesn't terminate properly. This can for example happen when the dev server runs in...
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...
The linked article found a simple way to rewrite legacy git aliases to make them work with differently named default...
Let's assume that we have a model Movie that registers a callback function when a new instance of Movie...
I recently enjoyed debugging a Cucumber step that tried to be retryable using a patiently block: Then /^"([^"]*)" should( not)? be...
Using ActiveRecord's #signed_id and .find_signed methods you can create URLs that expire after some time. No conditionals...
When an object is created / updated, various callbacks are executed in this order: before_validation after_validation before_save
Bundler so far ignored the version specified under BUNDLED_WITH in the Gemfile.lock. This had two annoying consequences:
TLDR if you define a equality method for a class you must also implement def hash. Ruby has a lot...
Our CI setup frequently sees this error while running yarn install: yarn install v1.22.19 [1/4] Resolving packages... [2/4] Fetching packages...
Timecop is a great gem to set the current time in tests. However, it is easy to introduce flakyness to...
Usually, design development starts with drafts, sketches and prototypes. These are reviewed, refined and iterated until the final design is...
In a Jasmine spec you want to spy on a function that is imported by the code under test. This...
Instead of cobbling together default settings in several different places as the issues arise, you can define them application-wide...
We usually rely on VCR and WebMock to prevent any real network connection when running our unit tests.
Usually, Unpoly compiler destructors are returned from the compiler function. However, when using async compiler functions, you can not register...
The cards editor has a feature "Cite other card" to create links to other cards in the same deck as...