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Rails 3.1 introduces a lot of new changes. In this session we'll cover most of the changes, including how to take advantage of them. From Reversible Migrations, the new Asset Pipeline, Coffee Script, SASS, and even HTTP Streaming. This will be a code-heavy talk demonstrating many of the new features in Rails 3.1. Help us caption & translate this video! http://amara.org/v/FGdu/
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In this video titled "Rails 3.1 Whirlwind Tour," speaker Ben Scheirman delivers an insightful presentation on the significant updates and features introduced in Rails 3.1 during the LoneStarRuby Conference 2011. This session is aimed at helping developers take full advantage of the new functionalities offered in the framework, emphasizing hands-on coding examples throughout the talk. Ben outlines the prominent changes, which include: - **jQuery as the default**: Rails 3.1 adopts jQuery as its default JavaScript library, requiring a simple addition to the gem file. - **Reversible Migrations**: Introduces a simpler way to manage migrations with a single 'change' method, automating the rollback process. - **Mountable Engines**: Enables embedding Rails applications within other Rails applications, facilitating modular development and asset management. - **Identity Map**: Improves ActiveRecord by caching objects in memory, reducing memory usage in long-running processes, although it requires careful use. - **Prepared Statements**: Optimizes performance especially for SQL Server by caching queries which can result in faster execution times. - **has_secure_password**: Simplifies user authentication in Rails applications by integrating bcrypt for password storage and management. - **HTTP Streaming**: Offers a more efficient way to render responses, allowing clients to start loading assets while the server processes the full response, reducing overall wait times. - **Asset Pipeline**: Integrates Sprockets to manage assets, reducing HTTP requests and enhancing performance through minification and logical ordering. - **CoffeeScript**: Available by default, this streamlined scripting language compiles into JavaScript, simplifying syntax for developers. - **SASS**: Now included to manage CSS, providing variables and mixins for cleaner and more maintainable styles. Ben provides practical coding demonstrations for several features, such as setting up HTTP streaming and utilizing the asset pipeline effectively. He also addresses common challenges developers might face, particularly emphasizing the importance of understanding asset loading order across multiple files. In conclusion, Ben highlights that Rails 3.1 greatly enhances the developer experience by offering new tools and improved functionality, urging developers to explore these changes in their projects. This session serves as a comprehensive guide for anyone looking to leverage the capabilities of Rails 3.1 for their web applications.
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