What Pradipta Archiputra (aka "MAX ARCHIE") uses to send his recruitment emails. This plugin pretends that CC and BCC

Learn how to set up a one-to-many or many-to-many association which is entirely embedded into a single column through a string or bitmask.

Another replacement for factories and fixtures that focuses on being DRY and making developers type as little as possible.

Template inliner avoids the problem when to render a large list of objects,

this is a very cool lib,

Fuck acronyms, really

An ActionMailer delivery method to save mails as files in a directory.

So you downloaded inaction_mailer, and you had a folder full of e-mails generated while writing your app?

Easily show multiple, overlapping events across calendar days and rows.

A simple implementation of an Identity Mapper for Active Record.

Unfortunately vanilla Ruby modules lack support for many idioms popular in modern Ruby. Most importantly, we have become accustomed to composing our classes with meta-programming macros such as has_many, validates_presence_of or after_save. And modules weren't built with macros in mind.

Steak is like Cucumber but in plain Ruby.

Rack middleware for rate-limiting incoming HTTP requests.

File upload solution that supports form roundtrips when a validation fails.

Here is a set of additive color model conversion algorithms that I found published on Wikipedia and have implemented in JavaScript.

We recently decided our CI server needed an overhaul. I really enjoyed Integrity as a build server, but after trying out Hudson it’s hard to say I want to go back. Hudson has several huge advantages.

What do we expect from the custom finder? We expect that it should find assets A, B, C and should not find assets D, E, F. And sometimes the order is important: it should find A, B C with exact order.

All ActiveRecord associations except for has_many :through support callbacks for pre- and post-insertion/deletion via the following, self-documenting parameters:

"Open-source software (OSS) is great. Anyone can use virtually any open-source code in their projects."

Well, it depends. Licenses can make things difficult, especially when you are developing closed-source software. Since some OSS licenses even require the employing application to be open-sourced as well (looking at you, GPL), you cannot use such software in a closed-source project.

To be sure on this, we have developed a project-level integration of Pivotal's excellent [license_finder](https:/...

Database connections are not thread-safe. That's why ActiveRecord uses a separate database connection for each thread.

For instance, the following code uses 3 database connections:

3.times do
  Thread.new do
    User.first # first database access makes a new connection
  end
end

These three connections will remain connected to the database server after the threads terminate. This only affects threads that use ActiveRecord.

You can rely on Rails' various clean-up mechanisms to release connections, as outlined below. This may...

By default, Rails views escape HTML in any strings you insert. If you want to insert HTML verbatim, you need to call #html_safe. However, #html_safe does not "unescape" a string. It merely marks a string as safe for unescaped insertion.

How html_safe works

Calling html_safe on a String returns a new object that looks and acts like a String, but actually is a ActiveSupport::SafeBuffer:

"foo".length
# => 3
"foo".class
# => String

"foo".html_safe.length
# => 3
"foo".html_safe.class
# => ActiveSupport::S...