New PDF release: Agile web development with rails: a Pragmatic guide

By Dave Thomas, David Heinemeier Hansson, Leon Breedt, Mike Clark, Thomas Fuchs, Andrea Schwarz

ISBN-10: 097669400X

ISBN-13: 9780976694007

Rails is a full-stack, open resource internet framework that allows you to create full-featured, subtle web-based purposes, yet with a twist... an entire Rails software most likely has much less overall code than the XML you'll have to configure an analogous software in different frameworks. With this publication you will the best way to use "ActiveRecord" to attach enterprise gadgets and database tables. not more painful object-relational mapping. simply create your corporation gadgets and permit Rails do the remainder. you will use the "Action Pack" framework to course incoming requests and render pages utilizing easy-to-write templates and parts. See easy methods to take advantage of the Rails carrier frameworks to ship emails, enforce net prone, and create dynamic, user-centric web-pages utilizing integrated Javascript and Ajax help. There are huge chapters on checking out, deployment, and scaling. you will see how effortless it's to put in Rails utilizing your net server of selection (such as Apache or lighttpd) or utilizing its personal incorporated net server. you can be writing functions that paintings along with your favourite database (MySQL, Oracle, Postgres, and extra) very quickly in any respect. you will create an entire on-line shop software within the prolonged instructional part, so you will see how an entire Rails program is developed---iteratively and swiftly. Rails strives to honor the Pragmatic Programmer's "DRY precept" through keeping off the additional paintings of configuration records and code annotations. you could strengthen in real-time: make a transformation, and watch it paintings instantly. omit XML. every little thing in Rails, from templates to regulate circulation to company common sense, is written in Ruby, the language of selection for programmers who prefer to get the task performed good (and depart paintings ontime for a change). Rails is the framework of selection for the hot new release of net 2.0 builders. Agile internet improvement with Rails is the e-book 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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Prepared exclusively for Rida Al Barazi Report erratum 21 R AILS AND D ATABASES Rails works with the DB2, MySQL, Oracle, Postgres, SQL Server, and SQLite databases. For all but MySQL, you’ll need to install a database driver, a library that Rails can use to connect to and use your database engine. This section contains the links and instructions to get that done. Before we get into the ugly details, let’s see if we can skip the pain altogether. If you don’t care what database you use because you just want to experiment with Rails, our recommendation is that you try MySQL.

Com/ online/demo. 4, Naming Conventions, on page 180. For now, let’s just assume the controller is called Say. Prepared exclusively for Rida Al Barazi Report erratum H ELLO , R AILS ! com/online/demo/say/hello 1. First part of URL identifies the application 2. Next part selects a controller (say) 3. 2: URLs Are Mapped to Controllers and Actions about paths. It knows that once it sees the online/demo part of the path, it must be talking to the application. Anything past this in the incoming URL will not change that—the same application will still be invoked.

To complete our Hello, World! application, let’s create a template. By default, Rails looks for templates in a file with the same name as the Prepared exclusively for Rida Al Barazi Report erratum 30 H ELLO , R AILS ! action it’s handling. rhtml. rhtml? ) For now, let’s just put some basic HTML in there. rhtml, and refresh your browser window. You should see it display our friendly greeting. Notice that we didn’t have to restart the application to see the update. During development, Rails automatically integrates changes into the running application as you save files.

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Agile web development with rails: a Pragmatic guide by Dave Thomas, David Heinemeier Hansson, Leon Breedt, Mike Clark, Thomas Fuchs, Andrea Schwarz

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