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

By Dave Thomas, David Heinemeier Hansson, Sam Ruby

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

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

With this booklet, you'll how one can use ActiveRecord to attach enterprise gadgets and database tables. not more painful object-relational mapping. simply create your online business gadgets and allow Rails do the remainder. have to create and adjust your schema? Migrations make it painless (and they're versioned, so that you can roll alterations backward and forward). You'll how one can use the motion Pack framework to direction incoming requests and render pages utilizing easy-to-write templates and elements. See how you can take advantage of the Rails provider frameworks to ship emails, enforce internet companies, and create dynamic, user-centric web-pages utilizing integrated Javascript and Ajax help. there's large insurance of trying out, and the rewritten Deployment bankruptcy now covers Phusion Passenger.

As with the former versions of the publication, we commence with a longer instructional that builds components of an internet shop. And, in fact, the applying has been rewritten to teach the simplest of Rails V2.

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

Sample text

55 Adding the Time Our original problem was to display the time to users of our application. We now know how to make our application display dynamic data. The second issue we have to address is working out where to get the time from. now %>

This works. Each time we access this page, the user will see the current time substituted into the body of the response. And for our trivial application, that might be good enough. In general, though, we probably want to do something slightly different.

OK, back to the application.

It was nice having you here.

Say <%= link_to "Hello" , :action => "hello" %> again.

11. Symbols probably cause more confusion than any other language feature when folks first come to Ruby. We’ve tried many different explanations—no single explanation works for everyone. For now, you can just think of a Ruby symbol as being like a constant string but one without all the string methods. It’s the name tag, not the person. 4 What We Just Did In this chapter, we constructed a toy application.

It has extensive plug-in support. com/Products/Komodo/) is ActiveState’s IDE for dynamic languages, including Ruby. php) is a commercial IDE for Ruby. Ask experienced developers who use your kind of operating system which editor they use. Spend a week or so trying alternatives before settling in. And, once you’ve chosen an editor, make it a point of pride to learn some new feature every day. 0 printing, March 2009) 39 R AILS AND D ATABASES Creating Your Own Rails API Documentation You can create your own local version of the consolidated Rails API documentation.

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