Ruby in Practice

List of Listings

Listing 1.1. SQL for graph example database

Listing 1.2. Setting up our database with ActiveRecord

Listing 1.3. Generating a graph with Scruffy

Listing 1.4. Using blocks to reduce code duplication

Listing 1.5. A small example of DRY syntax

Listing 1.6. Map is one way Ruby uses functional programming for parallelism

Listing 1.7. Using attr_accessor to define accessor methods on your class

Listing 1.8. A reimplementation of attr_accessor

Listing 1.9. Using ActsAsTaggable to get a lot of features in one line of code

Listing 1.10. Building an RSS feed for our projects

Listing 1.11. A simplified look at XML::Builder’s use of method_missing

Listing 1.12. A validation domain-specific language example

Listing 2.1. A simple test using Test::Unit