Please help me!

Hi To This Group!

I am new to ROR I have some problem in varible acessing in the rb file.

I worte the def in the strored controller .rb

def products_cat
$rid=params[:id]
@categories = Category.salable_items
@products_id = Product.find(params[:id])
@products = Product.salable_items1(params[:id])
flash[:notice] = “Succesfully”

end

I want to acess the varible that is in nthe product.rb file that is
model

def self.salable_items1(rid)
find(:all,
:conditions => “cat_id = rid”,
:order => “date_available desc”)
end

I am unable to access the variblein find method rid

How can access that variable…

Thnaks and regards,

Sure