Download Building Dynamic Web 2.0 Websites with Ruby on Rails: Create by A P Rajshekhar PDF

By A P Rajshekhar

Ruby on Rails is an open-source net software framework splendid to construction enterprise functions; accelerating and simplifying the production of database-driven web pages. frequently shortened to Rails or RoR, it offers a stack of instruments to speedily construct internet purposes according to the Model-View-Controller layout trend. This e-book is an academic for making a entire web site with Ruby on Rails. it's going to educate you to improve database-backed net purposes in response to the Model-View-Controller development. it is going to take you on a pleasure journey correct from deploy to an entire dynamic web site. all of the functions mentioned during this e-book may also help you upload interesting beneficial properties in your web site.

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Extra info for Building Dynamic Web 2.0 Websites with Ruby on Rails: Create database-driven dynamic websites with this open-source web application framework

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In the same way, a class can inherit methods and attributes of another class. In an Object-Oriented approach, this is known as Inheritance. Inheritance is also known as specialization. Let's say you want to have a class that deals specifically with fantasy tales. Let's name the new class FantasyTale. Apart from the attributes specified in the Tale class, the FantasyTale class will have the type of creature that the Tale focuses on. info Getting to Know Ruby and RoR The < Tale tells Ruby that the FantasyTale class inherits from the Tale class.

However, the chapters dealt primarily with the theoretical aspect of RoR. Now is the time to apply the theory to develop the real world application. That's what we are going to do from this chapter onwards. Beginning with this chapter, we will be developing a website called TaleWiki. Each chapter will add a new functionality or enhance the existing functionality. In this chapter, you will understand the basic requirements of TaleWiki. We will then move on to design and set up the database for these requirements.

That is how exceptions are handled in Ruby. info Getting to Know Ruby and RoR Data Structures Most of the power and ease that Ruby provides to the developers comes from its inbuilt data structures. The most commonly used data structures are: • Arrays • Hashes Of these the former is index-based and the latter is key-based. Arrays An array is a list that holds a collection of items. The Array class of Ruby provides the array related functionalities. The main difference between an array in Ruby and an array in a language—such as Java—is that an array in Ruby is a dynamic data structure.

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