Agile Web Development with Rails 3.1 (Pragmatic Programmers) by Sam Ruby, Dave Thomas, David Heinemeier Hansson

By Sam Ruby, Dave Thomas, David Heinemeier Hansson

Ruby on Rails is helping you produce fine quality, beautiful-looking net purposes speedy. you consider growing the appliance, and Rails looks after the main points. Tens of hundreds of thousands of builders have used this award-winning booklet to profit Rails. it is a vast, far-reaching instructional and reference that is prompt through the Rails middle group. if you are new to Rails, you will get step by step suggestions. if you are an skilled developer, this booklet provide you with the great, insider details you would like. Rails has developed through the years, and this booklet has developed besides it. We nonetheless commence with a step by step walkthrough of creating a true software, and in-depth chapters examine the integrated Rails good points. This version now offers new Ruby and Rails clients additional information at the Ruby language and takes extra time to give an explanation for key innovations all through. top practices on how you can practice Rails proceed to alter, and this version retains up. Examples use cookie sponsored periods, HTTP authentication, and lively Record-based types, and the booklet focuses all through at the correct solution to use Rails. also, this version now displays Ruby 1.9, a brand new unlock of Ruby with immense useful and function advancements.

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A has_secure_password method has been added to the model, which encapsulates and standardizes common user password hashing logic. Rack::Cache is enabled by default in production. The mysql2 gem replaces mysql gem. org/2011/5/22/rails-3-1-release-candidate Copyright © 2011, The Pragmatic Bookshelf. Acknowledgments You’d think that producing a new edition of a book would be easy. After all, you already have all the text. It’s just a tweak to some code here and a minor wording change there, and you’re done.

It’s time to move on to the next chapter where we create our first application. com/rvm/install Copyright © 2011, The Pragmatic Bookshelf. Chapter 2 Instant Gratification creating a new application, starting the server, accessing the server from a browser, producing dynamic content, adding hypertext links, and passing data from the controller to the view. Let’s write a simple application to verify we have Rails snugly installed on our machines. Along the way, we’ll get a peek at the way Rails applications work.

We’ll move the determination of the time to be displayed into the controller and leave the view with the simple job of displaying it.

* It is now <%= @time %>

When we refresh our browser window, we will again see the current time, showing that the communication between the controller and the view was successful. Why did we go to the extra trouble of setting the time to be displayed in the controller and then using it in the view? Good question. In this application, it doesn’t make much difference, but by putting the logic in the controller instead, we buy ourselves some benefits.

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