Rails - May 2010 - how to access variable in 3 level (model,controller,view)

how to  access variable in 3 level (model,controller,view)

i use  session[:current_unit] only can in C and V
can''t access in M

i mean is use a goloble variable can access in anywhere

Such as:
    user slecet a Unit,
    in model, before  User.save  the user.unit_id must set
session[:user_id]
    in login form User must select a unit , this is current_unit, I
save it in session[:user_id]
    but how can i get it in model
    or  there are an other mothed to handle it?

thanks!



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Fuyi wrote:
> how to  access variable in 3 level (model,controller,view)
> 
> i use  session[:current_unit] only can in C and V
> can''t access in M
> 
> i mean is use a goloble variable can access in anywhere
You probably don''t want to use a global variable for this.
> 
> Such as:
>     user slecet a Unit,
>     in model, before  User.save  the user.unit_id must set
> session[:user_id]
>     in login form User must select a unit , this is current_unit, I
> save it in session[:user_id]
>     but how can i get it in model
>     or  there are an other mothed to handle it
It sounds like you''re not going about this correctly.  Can you give
more
details of what you''re trying to do?
> 
> thanks!
Best,
--
Marnen Laibow-Koser
http://www.marnen.org
marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org
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Posted via http://www.ruby-forum.com/.

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In declarative_authorization you can do

      before_filter {|c| Authorization.current_user = c.current_user}

in ApplicationController, then call

      using_access_control

in Model, and you get current_user(or something like that) in your
model. Check how they do it.

Also, there is a hack from @lifo(Rails core team and 37signals member)
http://m.onkey.org/2007/10/17/how-to-access-session-cookies-params-request-in-model




On Sun, May 9, 2010 at 9:19 PM, Fuyi
<fuyi.it-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> how to  access variable in 3 level (model,controller,view)
>
> i use  session[:current_unit] only can in C and V
> can''t access in M
>
> i mean is use a goloble variable can access in anywhere
>
> Such as:
>    user slecet a Unit,
>    in model, before  User.save  the user.unit_id must set
> session[:user_id]
>    in login form User must select a unit , this is current_unit, I
> save it in session[:user_id]
>    but how can i get it in model
>    or  there are an other mothed to handle it?
>
> thanks!
>
>
>
> --
> You received this message because you are subscribed to the Google Groups
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> To post to this group, send email to
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>
>
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