By Yehuda Katz, Ryan Bigg
Rails three in Action
is a collaboration among Rails group leaders, Ryan Bigg and Yehuda Katz, that covers Rails 3.1 making it the main updated source on hand. yet it's even more than simply a Rails three reference publication. You'll learn how to do Rails the ideal approach, so that you can construct sturdy, scalable, and maintainable apps that may fulfill even the main challenging clients.
About the Book
Rails three is a whole stack, open resource net framework powered by means of Ruby and this ebook is an creation to it. no matter if you're simply beginning otherwise you have a number of cycles less than your belt, you'll take pleasure in the book's guru's-eye-view of idiomatic Rails programming.
You'll grasp Rails 3.1 via constructing a price tag monitoring program that comes with RESTful routing, authentication and authorization, country upkeep, dossier uploads, electronic mail, and extra. You'll additionally discover strong good points like designing your individual APIs and construction a Rails engine. you'll discover try pushed improvement and behaviour pushed improvement in motion during the ebook, similar to you will in a most sensible Rails shop.
It is beneficial for readers to have a historical past in Ruby, yet no previous Rails event is needed.
What's Inside* Covers Rails 3.1 from the floor up
* checking out and BDD utilizing RSpec and Cucumber
* operating with Rack
Table of Contents<ol>* Ruby on Rails, the framework
* trying out saves your bacon
* constructing a true Rails application
* Oh CRUD!
* Nested resources
* Authentication and easy authorization
* easy entry control
* extra authorization
* dossier uploading
* monitoring state
* Sending email
* Designing an API
* substitute authentication
* easy functionality enhancements
* Rack-based applications
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Additional resources for Rails 3 in Action
Should_not be_edible expected edible? to return false, got true Even though this sets the expired attribute on the Bacon object, you’ve still hardcoded true in your edible? method. Now change the method to use the attribute method, as in the following listing. Download from Wow! rb def edible? expired end When you run rspec spec again, both your specs will pass: .. rb and remove the self. from the expired! method: def expired! expired = true end If you run rspec spec again, you’ll see your second spec is now broken: Failure/Error: Bacon expired!
Here, you’re told that Name can’t be blank and that the value you entered for Cost isn’t a number. Let’s see what happens if you enter foo for the Name field and -100 for the Cost field, and click Create Purchase. 6. Good to see! Both of your validations are working now. When you change Cost to 100 and click Create Purchase, it should be considered valid by the validations and take you to the show action. Let’s look at what this particular action does now. 7. 7 A single purchase The number at the end of the URL is the unique numerical ID for this purchase.
Under the scenario’s title, the remainder of the lines are called steps, which are read by Cucumber’s parser and matched to step definitions, where the logic is kept.
Rails 3 in Action by Yehuda Katz, Ryan Bigg