Getting started with Chef

When you simply want to get to know Puppet, follow puppetlabs’ Learning Puppet Docs. They give you a handy introduction inside a virtual machine they provide. You can watch the [talk by Garrett Honeycutt '...

Info on install database_cleaner.

When you need to patch an existing gem, one way is to "vendor" the gem by copying it into the vendor/gems directory of your Rails project. You can then make any changes you require and Rails will use the vendored version of the gem after a serve...

Rails supports time zones, but there are several pitfalls. Most importantly because Time.now and Time.current are completely different things and code from gems might use one or the other.

Especially configuring an application that cares only...

In production, you (or your ops team) should configure a maximum number of bytes that Redis can use to store data (maxmemory setting).
They may even want to set maxmemory-policy to noeviction to avoid keys being removed that you want to keep...

This card describes a Cucumber step that lets you say:

When I perform basic authentication as "username/password" and I visit the admin area

The path component ("... the admin area") is parsed through your path_to helper in `features/s...

When using ImageMagick to manipulate images, you might see that images get darker when beeing modified by newer versions of ImageMagick.

This usually happens with CMYK images beeing converted to RGB by IM.

Solution

At least in our version of ...

When you are working with SVG files and ImageMagick you can get different results on different machines depending on which additional packages you have installed.

From: [http://www.imagemagick.org/script/formats.php](http://www.imagemagick.org/sc...

Because javascript has something called "Hoisting" which makes your code do things it doesn't look like it should be doing. Basically, that means a javascript interpreter will move all var declarations, regardless of where they are in the body of ...

What if my controller decides to take the Thing.create! and rescue route? What if my model has a special initializer method, like Thing.build_with_foo? My spec for behavior should not fail if I change the implementation.