Agile Web Development with Rails 5 by Sam Ruby

By Sam Ruby

Rails five and Ruby 2.2 convey many advancements, together with new APIs and vast functionality improvements, and the 5th variation of this award-winning vintage is now up to date! in case you are new to Rails, you will get step by step information. if you are an skilled developer, this booklet offers you the great, insider details you would like for the most recent model of Ruby on Rails.

Ruby on Rails is helping you produce high quality, beautiful-looking internet functions quick. you consider developing the applying, and Rails looks after the main points. study Rails the best way the Rails middle staff recommends it, besides the tens of millions of builders who've used this large, far-reaching educational and reference.

We commence with a step by step walkthrough of creating a true software, and in-depth chapters examine the integrated Rails positive factors. stick with besides a longer instructional as you write a web based shop software. cast off tedious configuration and home tasks; internationalize your functions; include Ajax, relaxation, internet prone, and e mail dealing with into your purposes; try out your purposes as you write them utilizing the integrated trying out frameworks; and set up your functions simply and securely. New during this variation is assurance of motion Cable, and entirely up to date code for Rails 5.

Rails 1.0 used to be published in December 2005, greater than 10 years in the past. This e-book used to be there from the beginning, and did not simply evolve along Rails, it developed with Rails. it's been built in session with the Rails center group. in truth, Rails itself is demonstrated opposed to the code during this book.

What You Need:

All you would like is a home windows, Mac OS X, or Linux laptop to do improvement on. This publication will take you thru the stairs to put in Rails and its dependencies. in the event you aren't accustomed to the Ruby programming language, this booklet includes a bankruptcy that covers the fundamentals essential to comprehend the cloth within the book.

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Pop down into that directory and list its contents (using ls on a Unix box or using dir on Windows). ru db/ lib/ log/ public/ test/ tmp/ vendor/ All these directories (and the files they contain) can be intimidating to start with, but you can ignore most of them for now. In this chapter, we’ll only use two of them directly: the bin directory, where we’ll find the Rails executables; and the app directory, where we’ll write our application. 1, reread Choosing a Rails Version, on page 14. This command also detects common installation errors.

We don’t need code for a model, because we’re not dealing with any data. Let’s start with the controller. report erratum • discuss Hello, Rails! • 25 In the same way that we used the rails command to create a new Rails application, we can also use a generator script to create a new controller for our project. This command is rails generate. scss The rails generate command logs the files and directories it examines, noting when it adds new Ruby scripts or directories to our application. erb files.


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Fire up your trusty browser again, but this time point to our new view using the URL http://localhost:3000/say/goodbye. You should see something like this screenshot. Now we need to link the two screens. We’ll put a link on the hello screen that takes us to the goodbye screen, and vice versa. In a real application, we might want to make these proper buttons, but for now we’ll use hyperlinks. We already know that Rails uses a convention to parse the URL into a target controller and an action within that controller.

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