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

ISBN-10: 1934356166

ISBN-13: 9781934356166

You are looking to write professional-grade purposes: Rails is a full-stack, open-source internet framework, with built-in aid for unit, useful, and integration trying out. It enforces solid layout ideas, consistency of code throughout your staff (and throughout your organization), and correct liberate 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. want Ajax aid, so your net functions 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 purposes with a REST-based interface (so they could have interaction with different RESTful functions with virtually no attempt in your part)? All integrated.

With this e-book, you'll the way to use ActiveRecord to attach company gadgets and database tables. not more painful object-relational mapping. simply create what you are promoting items and enable Rails do the remaining. 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 how one can use the motion Pack framework to direction incoming requests and render pages utilizing easy-to-write templates and parts. See the way to take advantage of the Rails provider frameworks to ship emails, enforce internet prone, and create dynamic, user-centric web-pages utilizing integrated Javascript and Ajax help. there's vast assurance of checking out, and the rewritten Deployment bankruptcy now covers Phusion Passenger.

As with the former variations of the booklet, we begin with a longer educational that builds components of a web shop. And, in fact, the applying has been rewritten to teach the simplest of Rails V2.

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

Example text

This book uses only one Unix command: ls. The Windows equivalent is dir. OK, you Windows users are done. 5, Choosing a Rails Version, on page 36. See you there. 6 (Tiger), Mac users have a decent Ruby installation included as standard. 5 (Leopard) includes Rails itself. 6. So either way, you have some upgrading to do, a bit more for Tiger than for Leopard, but it’s not too difficult either way. 0 printing, March 2009) 33 I NSTALLING ON L INUX Tiger users will also need to upgrade SQLite 3. This can be done via compiling from source (which sounds scarier than it is).

0 printing, March 2009) 49 H ELLO , R AILS ! three files and a new directory to our application. That directory will contain the template files for the controller’s views. In our case, we created a controller named say, so the views will be in the directory app/views/say. ” application, let’s create a template. By default, Rails looks for templates in a file with the same name as the action it’s handling. erb7 in the directory app/views/say. erb? erb, and refresh your browser window. You should see it display our friendly greeting.

To add the action, we define a new method in the controller. 0 printing, March 2009) 57 L INKING P AGES T OGETHER Let’s call this action goodbye. now end def goodbye end end Next we have to create a new template in the directory app/views/say. erb, because by default templates are named after their associated actions.

It was nice having you here.

Fire up our 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: Now we need to link the two screens.

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