Basic Ruby On Rails Programming

Ruby and Perl might have a number of similarities, but there are a number of features that makes them unique from each other.

In Ruby, you won’t encounter context-dependent rules like with Perl. The array literals go in brackets instead of parentheses. A variable isn’t the same as the object to which it refers in Ruby. Instead, it’s always seen just as a reference to an object. Ruby uses “def” instead of “sub”. Semicolons are not needed after each line. You end it up with ‘end’ instead. Diamond operators are not found in Ruby and fat commas are only used in hash literals.

Perl is an awesome program and it creates awesome documents, but the only problem with Perl is its complexity.

Are you aware that Perl and Ruby has a lot of similarities? Read on and learn.

The parentheses are optional and the strings work just the same. There’s a package management system that is similar to CPAN (called Ruby Gems). You can see a lot of commonly used built-ins too. Both programs have Regexes that are built right. Both have embedded doc tools. In Ruby, it is called rdocs, and lastly, there is a general delimited string and regex quoting syntax similar to Perl’s.

The much awaited upgrade to the much loved yet seemingly less loved Roby gets a full update with the full release of Rails 2.3 loaded with many updates and improvements to the rising underdog of the open-sourced world. Top features includes more built-in templates, making implementation of stripped down rails applications onto a skeleton framework easier, loaded with your default gem stacks, configuration settings and much much more. Nested forms have also become easier with improved built in handling allowing complex forms to be included easy as pie. Reusable application pieces in the engine completes the whole picture which allows developers and programmers to use, reuse and recycle working modules, easily including them into their current projects. Continue Reading »

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Classes, attributes, methods, and objects are the core of any Object-Oriented language. I am going to discuss how these classes, attributes, methods etc can be implemented in Ruby. There are two types of classes ‘close-ended’ and ‘open-ended’. If a class is close-ended, then new functionalities cannot be added to it without inheriting the class.
If a class is open-ended, then new functionalities can be added to it without inheriting it. Ruby is open-ended.
The class declared and defined just now is an empty class as it doesn’t contain any attributes or methods. You will notice that the procedure to define methods in ruby is very simple. def is the keyword used to define methods.
In ruby we don`t use brackets to define a set of code and we don`t use any semicolon at the end of the statements.