Download Agile Web Development with Rails: A Pragmatic Guide by Dave Thomas PDF

By Dave Thomas

ISBN-10: 0977616630

ISBN-13: 9780977616633

Rails is a full-stack, open resource net framework that permits you to create full-featured, subtle web-based purposes, yet with a twist... a whole Rails program most likely has much less overall code than the XML you'll have to configure an analogous software in different frameworks. With this e-book you are going to tips on how to use ActiveRecord to attach enterprise gadgets and database tables. not more painful object-relational mapping. simply create your enterprise items and allow Rails do the remainder. you are going to use the motion Pack framework to path incoming requests and render pages utilizing easy-to-write templates and elements. See the way to make the most the Rails provider frameworks to ship emails, enforce net prone, and create dynamic, user-centric web-pages utilizing integrated Javascript and Ajax help. There are large chapters on checking out, deployment, and scaling. you will see how effortless it truly is to put in Rails utilizing your net server of selection (such as Apache or lighttpd) or utilizing its personal incorporated internet server. you will be writing functions that paintings along with your favourite database (MySQL, Oracle, Postgres, and extra) very quickly in any respect. you will create a whole on-line shop program within the prolonged educational part, so you will see how a whole Rails program is built - iteratively and swiftly. Rails strives to honor the Pragmatic Programmer's "DRY precept" through averting the additional paintings of configuration documents and code annotations. you could increase in real-time: make a metamorphosis, and watch it paintings instantly. fail to remember XML. every little thing in Rails, from templates to manage stream to company good judgment, 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 hot iteration of internet 2.0 builders. Agile net improvement with Rails is the publication for that new release, written through Dave Thomas (Pragmatic Programmer and writer of Programming Ruby) and David Heinemeier Hansson, who created Rails.

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The first part of the path is the name of the controller, and the second part is the name of the action. 3, on the following page. Our First Action Let’s add an action called hello to our say controller. From the discussion in the previous section, we know that adding a hello action means creating a method called hello in the class SayController. But what should it do? For now, it doesn’t have to do anything. Remember that a controller’s job is to set up things so that the view knows what to display.

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. rhtml would contain the following. ...

Say Goodbye!

... rhtml would point the other way. ...

Say Hello!

... This approach would certainly work, but it’s a bit fragile. If we were to move our application to a different place on the web server, the URLs would no longer be valid.

This approach would certainly work, but it’s a bit fragile. If we were to move our application to a different place on the web server, the URLs would no longer be valid. It also encodes assumptions about the Rails URL format into our code; it’s possible a future version of Rails might change this. Fortunately, these aren’t risks we have to take. Rails comes with a bunch of helper methods that can be used in view templates. 6. The link_to method can do a lot more than this, but let’s take it gently for now....

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Agile Web Development with Rails: A Pragmatic Guide by Dave Thomas

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