Rails default config uses the ActiveSupport::Cache::NullStore and disables controller caching for all environments except production: config.action_controller.perform_caching = false...
RawGit serves raw files directly from GitHub with proper Content-Type headers, for CDN-like purposes. Note that they don...
When using GROUP BY, MySQL now complains if the SELECT includes columns which are not part of the GROUP BY...
Nowadays it is fairly easy to intercept and modify mails globally before they are sent. All you have to do...
When you have a multi-server setup, you'll be adding a new server from time to time. Before doing...
Rails supports time zones, but there are several pitfalls. Most importantly because Time.now and Time.current are completely different things and...
You can use gem list to list all gems available from a remote gem server: gem list -r --clear-sources...
By default Middleman generates files with a .html extension. Because of this all your URLs end in /foo.html instead of...
Middleman is a static page generator that brings many of the goodies that Rails developers are used to.
Sometimes, through some firewall or proxy misconfiguration, you might have to deploy to a server that cannot access the git...
Database connections are not thread-safe. That's why ActiveRecord uses a separate database connection for each thread.
In modern default RSpec configurations, your tests are usually run in random order. This helps to detect "flickering" tests that...
In case you want to require a gem, that is not in the Gemfile of you bundle and therefore not...
For the initial setup or changes in the sentry reporting it might be useful to enabled reporting of sentry in...
ImageMagick has a command line tool called identify which can read image metadata: >identify -verbose DSC00136.JPG Image: DSC00136.JPG Format: JPEG...
Crontabs are often unordered, especially when generated for an application where you usually group tasks by their domain/scope.
This is not an issue in newer versions of HAML (starting with 5.0.0), as the ugly-option was removed...
Looks like ActiveState is trying to market a new Ruby distribution for Enterprises: ActiveRuby Enterprise Edition is designed for businesses...
Website that offers lots of different kinds of HTTPS configurations, bad or good or complicated. They also offer a dashboard...
Occasionally, you have to talk to APIs via HTTPS that use a custom certificate or a misconfigured certificate chain (like...
As web developers, we know how easy it is to end up with web page bloat. But loading a webpage...
We generally use multiple application servers (at least two) and you have to search on all of them if you...
If you have a replication error with MySQL and you know the "error" is okay (e.g. you've executed the...
On application servers, gems are usually bundled into the project directory, at a location shared across deployments. This is usually...