While helpers can make it easier to re-use code for your views, libraries (contained in your rails app’s /lib directory) can extend or modify the functionality of models, controllers or just about anything in the Ruby language. Here are some libraries developed and shared by others:
- An easy textsearch method for your models.
- A more flexiblefixtures fixtures architecture. Rather than assume your fixture files, database tables, model class names and fixture group names all match in every case, this fixture module will let you define multiple fixtures for the same table, or give you the flexibility to use alternate fixture files in your tests.
- Act As Versioned
- Acts As Permalink
- Act as Vertical">acts_as_vertical
- Paranoid ActiveRecord—Doesn’t remove data when objects are deleted, but flags them as deleted instead.
- ImageMagick/RMagick wrapper Provides a few simple methods to process your images with ImageMagick.
- Expire Cache By Date
Extends ActionController::Caching to include expire_date() method for handling cache files who URLs are created using a date
Tagging With Rails lists to libraries for adding folksonomy.