Ruby On Rails Modules

In this lecture we ll discuss modules.

Ruby on rails modules. Do else elsif end end ensure. Latest version rails 6 0 3 3 released september 10 2020. Built on the ruby programming language ruby on rails ror or sometimes just rails is a fully fledged website framework which includes everything you need to complete a website project including the ability to manage logic routing and applications all out of the box these handy tools also include database integration and controllers which makes it easier to facilitate web. Ruby forms the basis of the famous ruby on rails web application development technology on which twitter and several other famous web based applications run.

A good example of namespacing is the rails module. Delegation reserved keywords w arg args block delegation reserved method names set new ruby reserved keywords delegation reserved keywords freeze. Modules implement the mixin facility. Since the mid 1990s the ruby computer programming language has become ever more popular.

Music hi and welcome to lecture 12. We ll talk about built in ruby modules and we ll also talk about the concept of require relative. Ruby on rails 6 0 3 3. It s a container for classes methods or other modules even.

Of course ruby and ruby on rails are built upon various individual components as are all object oriented languages. So on the basic level module really just a container. Ruby reserved keywords w alias and begin begin break case class def defined. Modules give you two major benefits.

Ruby on rails makes it much easier and more fun. This is useful so you can avoid clashes with existing classes methods and constants and also so that you can add mix in the functionality of modules into your classes. Modules provide a structure to collect ruby classes methods and constants into a single separately named and defined unit. Active support core extensionsactive support is the ruby on rails component responsible for providing ruby language extensions utilities and other transversal stuff it offers a richer bottom line at the language level targeted both at the development of rails applications and at the development of ruby on rails itself after reading this guide you will know.

Modules provide a namespace and prevent name clashes. What core extensions are. This module contains a bunch of classes and modules for example the rails application class here we can see that the application class is. Modules define a namespace a sandbox in which your methods and constants can play without having to worry about being stepped on by other methods and constants.