By Dave Thomas, David Heinemeier Hansson, Sam Ruby

You are looking to write professional-grade functions: Rails is a full-stack, open-source net framework, with built-in help for unit, useful, and integration trying out. It enforces strong layout ideas, consistency of code throughout your crew (and throughout your organization), and correct unlock administration.

yet Rails is greater than a collection of top practices. Rails makes it either enjoyable and simple to show out very cool internet functions. desire Ajax help, so your net purposes are hugely interactive? Rails has it in-built. wish an software that sends and gets e mail? in-built. helps internationalization and localization? inbuilt. do you want purposes with a REST-based interface (so they could have interaction with different RESTful purposes with virtually no attempt in your part)? All integrated.

With this booklet, you'll how you can use ActiveRecord to attach company gadgets and database tables. not more painful object-relational mapping. simply create your corporation gadgets and enable Rails do the remainder. have to create and regulate your schema? Migrations make it painless (and they're versioned, so that you can roll adjustments backward and forward). You'll methods to use the motion Pack framework to course incoming requests and render pages utilizing easy-to-write templates and elements. See the way to make the most the Rails carrier frameworks to ship emails, enforce internet providers, and create dynamic, user-centric web-pages utilizing integrated Javascript and Ajax aid. there's broad insurance of trying out, and the rewritten Deployment bankruptcy now covers Phusion Passenger.

As with the former versions of the e-book, we commence with a longer instructional that builds elements of an internet shop. And, after all, the appliance has been rewritten to teach the easiest of Rails V2.

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Additional info for Agile Web Development with Rails (3rd Edition)

Sample text

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 just use hyperlinks. We already know that Rails uses a convention to parse the URL into a target controller and an action within that controller. So, a simple approach would be to adopt this URL convention for our links. erb would contain the following: ...

Say Goodbye!

... erb would point the other way: ...

A database. We’re using SQLite 3 in this book. For a development machine, that’s about all you’ll need (apart from an editor, and we’ll talk about editors separately). However, if you are going to deploy your application, you will also need to install a production web server (as a minimum) along with some support code to let Rails run efficiently. We have a whole chapter devoted to this, starting on page 651, so we won’t talk about it more here. So, how do you get all this installed? It depends on your operating system....

As luck would have it, there is. 2_ --version This is particularly handy when you create a new application, because once you create an application with a specific version of Rails, it will continue to use that version of Rails—even if newer versions are installed on the system—until you decide it is time to upgrade. How to change the version of Rails that your application is using is described in the sidebar on page 264. 2, you are not completely on your own. com/changes-to-rails. 6 Development Environments The day-to-day business of writing Rails programs is pretty straightforward.

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Agile Web Development with Rails (3rd Edition) by Dave Thomas, David Heinemeier Hansson, Sam Ruby
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