Bundler 2 introduced various incompatibilites und confusing behavior. To add to the confusion, Bundler's behavior changed after the release...
WProofreader is a spelling and grammar checking tool that integrates with textareas and numerous WYSIWYG editors. While it usually activates...
Rails is split into a large number of (sub-) frameworks. The most important and central of those are activesupport (extends...
With ActiveType 1.2 you can modify associations (has_many etc.) after they have been defined. One common use case for...
Travis changed their default distribution from Ubuntu 14.04 (trusty) to 16.04 (precise). This might break your test setup for new...
Was ist Elastic? Suchmaschine, basierend auf Apache Lucene größtenteils Open-Source einige kommerzielle Features ("Elastic Stack", früher "X-Pack") Zugriffsrechte...
Tod is a gem for working with daytimes. That's a tuple of (hour, minute second) without a day, month...
When doing some meta-programming magic and you want to do something for all attributes of a class, you may...
This is a short overview of things that are required to upgrade a project from the Asset Pipeline to Webpacker...
You can use .ids on an ActiveRecord 4+ scope to pluck all the ids of the relation User.where("users.name LIKE...
Webpacker is Rails' way of integrating Webpack, and version 4 has been released just a few days ago, allowing us...
For searching in large database tables we usually use PostgreSQL's fulltext search capabilities. While this works reasonably well for...
When restoring a PostgreSQL dump using pg_restore, you usually add the --clean flag to remove any existing data from...
Rails ships with two separate build pipelines: Sprockets ("asset pipeline") and Webpacker. Webpacker has many more moving parts, but allows...
When your code does not behave as expected, you can use a debugger statement ("breakpoint") at any point in your...
When upgrading Rails versions -- especially major versions -- you will run into a lot of unique issues, depending on the exact...
When debugging your application, you will come across objects created by some gem or framework. You don't have the...
In this example we assume that not only the storage gem changes but also the file structure on disc.
Masonry is a famous library to dynamically arrange a grid of items that have different aspect ratio, like horizontal and...
If validations failed for a record, and you want to find out if a specific validation failed, you can leverage...
Migrating data from a legacy into a new system can be a surprisingly large undertaking. We have done this a...
Having a unique selector for an element is useful to later select it from JavaScript or to update a fragment...
Background information about session storage in Rails Rails has a default mechanism to store the session in the CookieStore. This...
When you need to store structured data (like Ruby hashes) in a single database column with ActiveRecord, a simple way...