Static and class variable?

Rails
1

In rails, What is the difference between static and class variable? Is
it the same or different?

Thanks,
Ratnavel

2

It’s different

class variables are variables of the class
Their value is shared by all objects

Class Something
@@class_variable = 0

def do_something
@@class_variable +=1
end
end

foo = Something.new
foo.do_something
bar = Something.new
bar.do_something

After that code @@class_variable will be 2
It behaves like a static class variable in C++

There are no static variables on a function level like in C++ as far
as I know
You can use normal class attributes or class variables instead
(depending if you want them per object or not)

Here is some longer discussion on the topic:
http://groups.google.com/group/ruby-talk-google/browse_thread/thread/30c79cd4b9fb5c8