Object Oriented Design

Download The Merb Way by Foy Savas PDF

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By Foy Savas

“Foy is a talented author and his descriptions of the philosophies that( impacted the layout and implementation of Merb are certainly valuable to( all people suffering from the adjustments in Rails 3.”

–Obie Fernandez, sequence Editor


The specialist advisor to development Merb Applications


Thousands of Ruby and Rails builders are studying the intense scalability, agility, flexibility, and function provided by way of the hot Merb MVC framework. The Merb means is the 1st entire consultant to utilizing, extending, and deploying Merb. just like the bestseller The Rails Way (Addison-Wesley, 2008), this ebook can both be learn cover-to-cover as an educational or used for modular insurance that makes it a fantastic activity reference. Foy Savas systematically covers every little thing builders want to know to construct production-quality Merb functions, delivering unique code examples for jumpstarting nearly any undertaking.


Savas is not just enthusiastic about the Merb undertaking as an open resource contributor: He makes use of Merb each day as a certified developer. Drawing on his huge functional services, he delves deeply into the Merb framework’s structure and resource code, revealing its attractiveness and supplying robust most sensible practices for utilizing it. to maximise this book’s sensible price, he additionally covers the instruments most generally used along Merb, together with the DataMapper ORM, the RSpec tester (and linked behavior-driven improvement techniques), and a number of other top Merb plugins.


The Merb Way can assist you

  • Master Merb recommendations that might be integrated into Rails 3
  • Understand the basics of Merb improvement, one step at a time
  • Use Merb’s refined program router to lead incoming requests
  • Explore the Merb stack, grasp its configuration suggestions, and dive into its internals
  • Use Merb controllers to combine program code, deal with responses, and deal with periods, filters, and exceptions
  • Build templates with either ERB (Erubis) and HAML
  • Use the DataMapper ORM to symbolize item homes and behaviors
  • Learn most sensible practices for RESTful improvement with Merb
  • Leverage Helpers to simplify many universal improvement initiatives
  • Refactor code, encapsulate it in gem stones, and percentage it throughout a number of applications
  • Customize the responses your software sends to every user
  • Gain a deep, functional figuring out of Merb plugins and extensibility
  • Authenticate clients with Merb’s modular authentication plugin
  • Configure, generate, describe, and try Merb mailers
  • Use the merb-parts gem to create component-like areas on web content
  • Cache content material to alleviate pressure on net servers
  • Make the main of habit pushed improvement and trying out with RSpec


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The Merb Way

“Foy is a proficient author and his descriptions of the philosophies that( impacted the layout and implementation of Merb are certainly worthwhile to( each person tormented by the adjustments in Rails three. ” –Obie Fernandez, sequence Editor   The specialist consultant to construction Merb functions   millions of Ruby and Rails builders are gaining knowledge of the extreme scalability, agility, flexibility, and function provided via the recent Merb MVC framework.

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Additional info for The Merb Way

Sample text

To( :controller => 'my_very_flat_app', :action =>'index' ) end class MyVeryFlatApp < Merb::Controller def index "hi" end end Stepping into its directory is not enough to run a very flat application. The comment on the first line, however, points us in the right direction. rb Now if you visit http://localhost:4000, you should see the message returned by the value of the index action. ’’ Here, in order to give us the least surprise, any request handled by this method receives a response containing the returned string.

The Merb::Server class offers a number of class methods to manage running servers, but the application developer typically accesses these via the merb command.

Instead, in development mode, Merb automatically checks to see if application files have been updated and reloads the appropriate classes for us. ". If you check via your browser, the response will have changed without the need to restart Merb. Other environments Note that by convention, class reloading applies only to Merb applications running in development mode. This is the default mode for a Merb application, and it’s what we’ve used in every example so far. There are two other standard environments for running Merb applications---production and testing---and we’ll take a look at those later on.

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