Continuous integration is a great way to keep your code base organized and well tested. But when a test suite takes so long to run that developers stop running it before every commit, they lose their constant feedback loop and quality drops. In this talk we’ll explore methods of speeding …
The SOLID principles are a set of design principles that improve an Object Oriented design. They are: * Single Responsibility Principle * Open/Closed Principle * Liskov Substitution Principle * Interface Segregation Principle * Dependency Inversion Principle The SOLID principles were written with a statically typed language (such as C++ or …
How to get started with TDD? Test-First Teaching is an innovative teaching approach that is gaining widespread adoption. Sarah Allen talks about how she teaches Ruby and Rails through a test-first approach. She demonstrates test-first teaching and then discuss how to turn the corner from simply making tests pass to …
With the introduction of ActiveModel, Rails is no longer bound by a specific ORM (ActiveRecord). ActiveModel exposes not only a common interface for the Rails 3 model layer, but also a set of tools for building data models. This talk will go over techniques and code for using web services …
David Heinemeier Hansson presents some of the Rails 3.0 differences with previous version and explains what motivates them.
Even with ORMs like ActiveRecord, DataMapper which ease the pain of relational data storage, considerable developer effort goes into wrangling Ruby objects into their databases. This is true even when working with Document-oriented databases where the nested data structures more closely map to Ruby objects. Aqua is a new, proof-of-concept …