Download e-book for kindle: Agile Web Development with Rails (3rd Edition) by Dave Thomas, David Heinemeier Hansson, Sam Ruby

By Dave Thomas, David Heinemeier Hansson, Sam Ruby

ISBN-10: 1934356166

ISBN-13: 9781934356166

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

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

With this ebook, you'll how you can use ActiveRecord to attach enterprise items and database tables. not more painful object-relational mapping. simply create your small business gadgets and enable Rails do the remainder. have to create and alter your schema? Migrations make it painless (and they're versioned, so that you can roll adjustments backward and forward). You'll easy methods to use the motion Pack framework to path incoming requests and render pages utilizing easy-to-write templates and parts. See tips on how to make the most the Rails provider frameworks to ship emails, enforce internet providers, and create dynamic, user-centric web-pages utilizing integrated Javascript and Ajax aid. there's vast assurance of checking out, and the rewritten Deployment bankruptcy now covers Phusion Passenger.

As with the former variants of the e-book, we commence with a longer educational that builds elements of an internet shop. And, in fact, the applying has been rewritten to teach the easiest of Rails V2.

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

Example text

You can use the command which ruby to make sure you’re not running Ruby from /usr/bin. org/projects/sqlite-ruby A pure-Ruby version of the Postgres adapter is available. org/projects/ruby-dbi. MySQL and SQLite adapters are also available for download as RubyGems (mysql and sqlite3-ruby, respectively). 8 Keeping Up-to-Date Assuming you installed Rails using RubyGems, keeping up-to-date is relatively easy. ) RubyGems keeps previous versions of the libraries it installs. You can delete these with the following command: rubys> gem cleanup After installing a new version of Rails, you might also want to update the files that Rails initially added to your applications (the JavaScript libraries it uses for Ajax support, various scripts, and so on).

Display the results to the user. The good news is that Rails takes care of most of the internal plumbing that links all these actions. ” application, we need code for a controller and a view. We don’t need code for a model, because we’re not dealing with any data. Let’s start with the controller. 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 called generate, and it lives in the script subdirectory of the demo project we created.

We’ll see how to create simple maintenance pages, link database tables, handle sessions, and create forms. Over the next eight chapters, we’ll also touch on peripheral topics such as unit testing, security, and page layout. 1 Incremental Development We’ll be developing this application incrementally. We won’t attempt to specify everything before we start coding. Instead, we’ll work out enough of a specification to let us start and then immediately create some functionality. We’ll try ideas, gather feedback, and continue with another cycle of mini-design and development.

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

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