In rare cases you might need something like form_for (for using form builder methods on the resulting block element...

When using form_for you can give the form's target URL either as a string or an array:

The ancestry gem allows you to easily use tree structures in your Rails application. There is one somewhat unobvious pitfall...

If you need to look at the list of methods that are called upon certain events (like before/after saving etc...

SSL in Rails 3 is non-obvious.

If you want to see how long your database queries actually take, you need to disable MySQL's query cache...

If you get an error message like that you are missing the Aspell files a specific language:

Even when you're using bundler, it might be significant in which order your gems are listed in your Gemfile...

You can use record.send(:update_without_callbacks) or record.send(:create_without_callbacks) This can be used as a...

You don't need a Rails application to use Sass. Even when you're working on a static site you...

For some reason you want to define a find condition in array form. And in that condition both column name...

Find conditions for scopes can be given either as an array (:conditions => ['state = ?', 'draft']) or a hash (:conditions => { 'state' => 'draft...

There are many different methods that allow mapping an Array to a Hash in Ruby. Array#to_h with a...

When Paperclip attachments should only be downloadable for selected users, there are three ways to go. The same applies to...

Do that for noble reasons only.

This will show you how to create a RSS feed that the Feed Validator considers valid. Note that RSS is...

In modern Rails versions you can also use ActiveRecord's pluck method. User.active.pluck(:id) => [1, 5, 23, 42]

delocalize provides localized date/time and number parsing functionality for Rails.

When you load a record with find options that have SQL fragments in :select or :joins, ActiveRecord will make that...

In a great post about named routes in Rails, path vs. url, Viget Labs ponders which variant is best used...

This gem is designed to provide CSS views to Rails, and a process to concatenate and minify these files to...

Capistrano task for Bundler.

This post explains, in some detail, how we will implement a nice performance boost for Rails developers. Understanding the details...

Expiration of Rails sessions By default Rails sessions expire when the user closes her browser window. To change this edit...