By Dave Thomas
Rails is a full-stack, open resource net framework that allows you to create full-featured, subtle web-based functions, yet with a twist... an entire Rails software most likely has much less overall code than the XML you'll have to configure an identical software in different frameworks. With this booklet you will easy methods to use ActiveRecord to attach company items and database tables. not more painful object-relational mapping. simply create your online business items and enable Rails do the remaining. you are going to tips on how to use the motion Pack framework to course incoming requests and render pages utilizing easy-to-write templates and elements. See how one can take advantage of the Rails carrier frameworks to ship emails, enforce internet companies, and create dynamic, user-centric web-pages utilizing integrated Javascript and Ajax aid. There are broad chapters on checking out, deployment, and scaling. you will see how effortless it truly is to put in Rails utilizing your internet server of selection (such as Apache or lighttpd) or utilizing its personal incorporated internet server. you may be writing purposes that paintings together with your favourite database (MySQL, Oracle, Postgres, and extra) very quickly in any respect. you are going to create an entire on-line shop program within the prolonged educational part, so you will see how a whole Rails software is built - iteratively and quickly. Rails strives to honor the Pragmatic Programmer's "DRY precept" through heading off the additional paintings of configuration records and code annotations. you could boost in real-time: make a transformation, and watch it paintings instantly. fail to remember XML. every thing in Rails, from templates to manage circulate to company common sense, is written in Ruby, the language of selection for programmers who wish to get the task performed good (and depart paintings on time for a change). Rails is the framework of selection for the recent iteration of internet 2.0 builders. Agile internet improvement with Rails is the booklet for that new release, written via Dave Thomas (Pragmatic Programmer and writer of Programming Ruby) and David Heinemeier Hansson, who created Rails.
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Extra resources for Agile Web Development with Rails: A Pragmatic Guide
Example text
Good file navigation. 6 You need an environment that helps you navigate quickly between these: you’ll add a line to a controller to load up a value, switch to the view to add a line to display it, and then switch to the test to verify you did it all right. Something like Notepad, where you traverse a File Open dialog to select each file to edit, just won’t cut it. I personally prefer a combination of a tree view of files in a sidebar, a small set of keystrokes that’ll let me find a file (or files) in a directory tree by name, and some built-in smarts that knows how to navigate (say) between a controller action and the corresponding view.
Org/): A fully featured editor with support for Ruby. It has extensive plugin support. com/Products/Komodo/): ActiveState’s IDE for dynamic languages, including Ruby. php): 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. 6. A newly created Rails application enters the world containing 44 files spread across 36 directo- ries.
What gives? It turns out that the WEBrick-based Rails dispatcher is pretty clever. In development mode (as opposed to testing or production), it automatically reloads application source files when a new request comes along. That way, when we edit our application, the dispatcher makes sure it’s running the most recent changes. This is great for development. However, this flexibility comes at a cost—it causes a short pause after you enter a URL before the application responds. That’s caused by the dispatcher reloading stuff.
