tl;dr Since Rails 7+ you can use ComparisonValidator for validations like greater_than, less_than, etc. on dates, numerics...
tl;dr git checkout is the swiss army of git commands. If you prefer a semantically more meaningful command for...
You can use ETags to allow clients to use cached responses, if your application would send the same contents as...
Here are a few common patterns that will probably lead to flaky specs. If you notice them in your specs...
tl;dr git checkout is the swiss army of git commands. If you prefer a semantically more meaningful command for...
New versions of wkhtmltopdf dissallow file:// URLs by default. You can allow them by passing --enable-local-file-access.
You have uncommited changes (you can always check by using git status), which you want to discard.
tl;dr In RubyMine you can use find and replace with capture groups (.*?) and backreferences $1 (if you have several...
Ruby's standard library includes a class for creating temporary directories. Similar to Tempfile it creates a unique directory name...
tl;dr Since Rails 6+ you can use before? and after? to check if a date/time is before or after...
To allow HTTP 304 responses, Rails offers the fresh_when method for controllers. The most common way is to pass...
A memory leak is an unintentional, uncontrolled, and unending increase in memory usage. No matter how small, eventually, a leak...
For Rails models where only one of multiple attributes may be filled out at the same time, there is no...
If you need to convert an SVG source to PS or EPS, the most common suggestion on the interwebs is...
Greg Molnar has written a neat article about creating a single-file Rails app. This is not meant for production...
Sometimes the need arises for SSL in local development. We have guides for different webservers, this one is for puma...
When your Rails application offers downloading a bunch of files as ZIP archive, you basically have two options:
Recently we detected a memory leak in one of our applications. Hunting it down, we found that the memory leak...
The linked content includes a few design patterns implemented with Ruby on Rails. What is the card indented to achieve...
These are the results of the "personal tech stack survey". I've included only the most popular mentions, maybe it...
This should be fixed in the latest LTS-branches of our mysql2 fork, 0.2.x-lts and 0.3.x-lts...
To read the Rails session from a Rack middleware, use env['rack.session']. It's an ActionDispatch::Request::Session object.
The inset CSS property is a shorthand that corresponds to the top, right, bottom, and/or left properties. It has the...
Ruby includes many standard gems that are bundled into the Ruby installation. Here is an example for the gem strscan...