Sam Ruby, Dave Thomas, David Heinemeier Hansson's Agile Web Development with Rails (4th Edition - final) PDF

By Sam Ruby, Dave Thomas, David Heinemeier Hansson

ISBN-10: 1934356549

ISBN-13: 9781934356548

Ruby on Rails is helping you produce fine quality, beautiful-looking net purposes speedy. you consider developing the appliance, and Rails looks after the main points. Tens of millions of builders have used this award-winning booklet to benefit Rails. it is a vast, far-reaching educational and reference that is advised via the Rails middle staff. if you are new to Rails, you will get step by step suggestions. if you are an skilled developer, this e-book provides you with the excellent, insider details you would like. Rails has advanced through the years, and this booklet has developed in addition to it. We nonetheless begin with a step by step walkthrough of creating a true software, and in-depth chapters examine the integrated Rails gains. This variation now offers new Ruby and Rails clients additional info at the Ruby language and takes extra time to give an explanation for key innovations all through. top practices on the best way to follow Rails proceed to alter, and this variation retains up. Examples use cookie subsidized classes, HTTP authentication, and lively Record-based kinds, and the publication focuses all through at the correct solution to use Rails. also, this variation now displays Ruby 1.9, a brand new unencumber of Ruby with enormous useful and function advancements.

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Additional info for Agile Web Development with Rails (4th Edition - final)

Sample text

Active Record is the solid model foundation of the Rails MVC architecture. 3 Action Pack: The View and Controller When you think about it, the view and controller parts of MVC are pretty intimate. The controller supplies data to the view, and the controller receives events from the pages generated by the views. Because of these interactions, support for views and controllers in Rails is bundled into a single component, Action Pack. Don’t be fooled into thinking that your application’s view code and controller code will be jumbled up just because Action Pack is a single component.

Amount end Finally, the objects corresponding to individual rows in a table have methods that operate on that row. save end So, an ORM layer maps tables to classes, rows to objects, and columns to attributes of those objects. Class methods are used to perform table-level operations, and instance methods perform operations on the individual rows. In a typical ORM library, you supply configuration data to specify the mappings between entities in the database and entities in the program. Programmers using these ORM tools often find themselves creating and maintaining a boatload of XML configuration files.

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It was nice having you here.

Say <%= link_to "Hello", say_hello_path %> again.

At this point, we’ve completed our toy application and in the process verified that our installation of Rails is functioning properly. After a brief recap, it is now time to move on to building a real application. 4 What We Just Did We constructed a toy application that showed us the following: • How to create a new Rails application and how to create a new controller in that application • How to create dynamic content in the controller and display it via the view template • How to link pages together This is a great foundation, and it didn’t really take much time or effort.

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Agile Web Development with Rails (4th Edition - final) by Sam Ruby, Dave Thomas, David Heinemeier Hansson


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