[Rails] Class Variable

Hi everyone,

I have a question about class variable in Rails:

I have a class Point that contains an class variable
@@color_points="green"

In a first web Page I want to set up this variable, hence i do
Point.color_points = "green" then i test it using puts
Point.color_points ( = green, it works,yes!)
Then i have a link_to instruction that points to another web page.
On this one (the other one), I just want to print Point.color_points,
but now its value is "".

DOes anyone know why and could explain me?

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