Rails - Dec 2006 - Question about instant variable in views and request parameters

Hi all,

I have a difficulty which I would like to ask for help.

I passed parameters to a view in the form of URL parameters
(...?param1=xxx&param2=yyy), and use these parameters to initialize an
instant variable (say @var1) in an action method of my controller. In
that view there''re some AJAX stuffs. Following are my difficulty:

1. In subsequent action methods called by AJAX, I need to access the
@var1 (already initialized before), but @var1 return nil. How could i
keep the value of @var1 across action methods? I guess the controller
is singleton, so @var1 will be like a global variable and its value
will be kept available across requests - but clearly it''s not the case.
Could anyone explain how I''m wrong?

2. I would like to re-initialize @var1 using request parameters
(param1, param2...). However in subsequent action methods called by
AJAX stuffs, how can I access these parameters, as they''re not in
params any more (they''re still there on URL).

Sorry for these newbie questions. Thank a lot for help.

- Chuong


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