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budget web hosting solution service budget web hosting solution service Web Hosting Glossary - Ruby on Rails Ruby on Rails Ruby on Rails, often called RoR, or just Rails, is an open source web application framework written in Ruby that closely follows the Model-View-Controller (MVC) architecture. It strives for simplicity and allowing real-world applications to be developed in less code than other frameworks and with a minimum of configuration. The Ruby programming language allows for extensive metaprogramming, which Rails makes much use of. This results in a syntax that many of its users find to be very readable. Rails is primarily distributed through RubyGems, which is the official packaging format and distribution channel for Ruby libraries and applications.

budget web hosting solution service Philosophy Ruby On Rails' guiding principles include "Don't Repeat Yourself" (DRY) and "Convention Over Configuration." "Don't Repeat Yourself" means that definitions should only have to be made once. Since Ruby On Rails is a "full-stack" framework, the components are integrated so that bridges between them need not be set up manually. For example, in Active Record, class definitions need not specify the column names; Ruby can already find them from the database itself, so defining them in both the program and the RDBMS would be redundant. "Convention Over Configuration" means that the programmer only needs to define configuration which is unconventional.

budget web hosting solution service For example, if there is a Post class in model, the corresponding table in the database is posts, but if the table is unconventional (e.g. blogposts), it must be specified manually (set_table_name "blogposts"). Rails' MVC architecture The pieces of the Model-View-Controller (MVC) architecture in Ruby on Rails are as follows: Model In object-oriented, database-driven MVC web applications, Model consists of the classes representing RDBMS tables. In Ruby on Rails, Model classes are handled through the Active Record.

budget web hosting solution service Usually, all the programmer needs to do is to subclass the ActiveRecord::Base class, and the program will automatically figure out which RDBMS table to use and what columns the table has. The class definitions also specify the relations between classes with object-relational mapping commands. For example, if the class name Image has a definition has_many :comments, and there is an instance of Image named a, then a.comments will return an array with all Comment objects with image_id equal to a.id.

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