AJAX Tree Control is a modified version of SilverStripe's tree control. It adds dynamic loading of child nodes via AJAX. The default implementation uses the prototype library to make dynamic requests, but this behavior can be overridden by setting functions on the global Tree object. There are a few demo Ruby on Rails applications included in the distribution that show how to use and customize the tree.
Active Record connects business objects and database tables to create a persistable domain model where logic and data is presented in one wrapping. It’s an implementation of the object-relational mapping (ORM) pattern in which an object that wraps a row in a database table or view, encapsulates the database access, and adds domain logic on that data.
ActiveShipping is a unified Ruby API (quite useful on Rails) for shipping information from multiple carriers. It calculates shipping, handling, finds the best price from multiple sources, etc. It is primarily focused on rate requests, but may be extended to cover other aspects of shipping as well. Currently, it includes UPS and USPS modules, and modules for Fedex and DHL are coming soon.
AntFlow builds upon Apache Ant to provide a new approach to simplifying system automation that uses pipelines of hot folders chained together to perform a given task. Using XML, it associates an automated task such as data transfer, encryption, or XML processing with a directory on the local system. Whenever a file is copied or written into the hot folder, the associated task is executed and the file is moved to the next hot folder in the pipeline for further processing.
Arachno Ruby IDE is a development environment with an Emacs-like editor, an integrated very fast GUI debugger, source code browsing, live syntax checking, a local Apache environment for developing/debugging CGIs and integrated FTP, and a GNU diff frontend. The debugger offers an easy way to debug CGI and ERuby Web applications. It runs on Windows 2000 and XP, SuSE Linux 9.1/9.2, and other 2.6 kernel Linux distributions.
Arcadia is a Light Integrated Development Environment (IDE) for the Ruby language written in Ruby using the classic Tcl/Tk GUI toolkit. Some features include an editor with source browsing, syntax highlighting, and code completion, debug support, the ability to work on any platform where Ruby and Tcl-Tk work, a highly extensibility architecture, and support for RAD GUI building.
The Atom Publishing Protocol framework for Ruby aims to simplify the implementation of Atom Publishing Protocol (APP) support in Web applications. It achieves this by implementing a framework that handles the protocol-level duties for the programmer, while not making any requirements for the site design.