From: Ruby Mania <lists@...>
Date: 2012-04-03T06:05:49+09:00
Subject: Re: How to access Class variable?

Hi Jan,
If I do test=Test.new , it will ask me to pass the parameters
(name,category)
but I dont wish to do that when I am accessing the values.

Anyother input will be useful
Thanks !



Jan E. wrote in post #1053720:
> Hi,
>
> Ruby Mania wrote in post #1053698:
>> ***How do I access the the object values.
>> eg: test.name should give Hello and test.category should give 2
>
> This is exactly what you have to write: test.name and test.category
> (assuming you did test = Test.new ... before)
>
> Ruby Mania wrote in post #1053698:
>> ***Also if I have to update a value how do I do that
>> eg: test.name = "Hellozzz"  [change Hello to Hellozzzz]
>
> Again: This is exactly what to do: test.name = ...
>
> When you call
>
> attr_accessor :name, :category
>
> then Ruby creates getters and setters for @name and @category. To be
> more specific: Ruby creates two methods for @name, which are
>
> def name()
>   @name
> end
>
> def name=(value)
>   @name = value
> end
>
> The same for @category. The first method simply returns the value of
> @name. If you leave out the parenthesis, the method call looks like
> you're accessing an attribute:
>
> test.name  # actually a method call: test.name()
>
> The second method allows you to change the value of the variable. Note
> the "=" in the method name. This allows you to use assignment syntax:
>
> test.name = 'abc'  # actually a method call: test.name=('abc')

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