Rail

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Date Submitted: 10/13/2013 08:14 AM

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== Welcome to Rails

Rails is a web-application framework that includes everything needed to create

database-backed web applications according to the Model-View-Control pattern.

This pattern splits the view (also called the presentation) into "dumb"

templates that are primarily responsible for inserting pre-built data in between

HTML tags. The model contains the "smart" domain objects (such as Account,

Product, Person, Post) that holds all the business logic and knows how to

persist themselves to a database. The controller handles the incoming requests

(such as Save New Account, Update Product, Show Post) by manipulating the model

and directing data to the view.

In Rails, the model is handled by what's called an object-relational mapping

layer entitled Active Record. This layer allows you to present the data from

database rows as objects and embellish these data objects with business logic

methods. You can read more about Active Record in

link:files/vendor/rails/activerecord/README.html.

The controller and view are handled by the Action Pack, which handles both

layers by its two parts: Action View and Action Controller. These two layers

are bundled in a single package due to their heavy interdependence. This is

unlike the relationship between the Active Record and Action Pack that is much

more separate. Each of these packages can be used independently outside of

Rails. You can read more about Action Pack in

link:files/vendor/rails/actionpack/README.html.

== Getting Started...