Rails - Apr 2008 - instance variable in controller -> views with RJS?

Hi everyone,

This should be pretty simple...
If you have an instance variable in a controller passed to its view, and
you have <% form_remote_tag :url => { :action =>
''other_action'' } do -%>
etc <% end %>, can you access the instance variable in the action
other_action?

You''re not really changing the view...

The idea is that I really need to store a variable and have it go from
first action -> view -> second action -> manipulated -> passed back
to
the view in render :update. If the above is not possible, what is the
best way to do this? Sessions?

 Thanks.
- Shannon
-- 
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i am new to ruby but i believe you can do it with the local option on
partial.

On Apr 15, 9:46 pm, Shannon Clipt
<rails-mailing-l...-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
wrote:
> Hi everyone,
>
> This should be pretty simple...
> If you have an instance variable in a controller passed to its view, and
> you have <% form_remote_tag :url => { :action =>
''other_action'' } do -%>
> etc <% end %>, can you access the instance variable in the action
> other_action?
>
> You''re not really changing the view...
>
> The idea is that I really need to store a variable and have it go from
> first action -> view -> second action -> manipulated -> passed
back to
> the view in render :update. If the above is not possible, what is the
> best way to do this? Sessions?
>
>  Thanks.
> - Shannon
> --
> Posted viahttp://www.ruby-forum.com/.
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pass it in on the form

<% form_remote_tag :url => {:action =>
''other_action'', :the_var =>
@the_var } do -%>
then in the destination action, set

@the_var = params[:the_var]

Julian.

Learn Ruby on Rails! Check out the FREE VIDS (for a limited time)  
VIDEO #4 coming soon!
http://sensei.zenunit.com/

On 16/04/2008, at 2:46 PM, Shannon Clipt wrote:
>
> Hi everyone,
>
> This should be pretty simple...
> If you have an instance variable in a controller passed to its view,  
> and
> you have <% form_remote_tag :url => { :action =>
''other_action'' } do
> -%>
> etc <% end %>, can you access the instance variable in the action
> other_action?
>
> You''re not really changing the view...
>
> The idea is that I really need to store a variable and have it go from
> first action -> view -> second action -> manipulated -> passed
back to
> the view in render :update. If the above is not possible, what is the
> best way to do this? Sessions?
>
> Thanks.
> - Shannon
> -- 
> Posted via http://www.ruby-forum.com/.
>
> >

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No, that''s not what he meant.

Julian.

Learn Ruby on Rails! Check out the FREE VIDS (for a limited time)  
VIDEO #4 coming soon!
http://sensei.zenunit.com/

On 16/04/2008, at 3:25 PM, rushnosh wrote:
>
> i am new to ruby but i believe you can do it with the local option on
> partial.
>
> On Apr 15, 9:46 pm, Shannon Clipt
<rails-mailing-l...-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
> wrote:
>> Hi everyone,
>>
>> This should be pretty simple...
>> If you have an instance variable in a controller passed to its  
>> view, and
>> you have <% form_remote_tag :url => { :action =>
''other_action'' }
>> do -%>
>> etc <% end %>, can you access the instance variable in the action
>> other_action?
>>
>> You''re not really changing the view...
>>
>> The idea is that I really need to store a variable and have it go  
>> from
>> first action -> view -> second action -> manipulated ->
passed back
>> to
>> the view in render :update. If the above is not possible, what is the
>> best way to do this? Sessions?
>>
>>  Thanks.
>> - Shannon
>> --
>> Posted viahttp://www.ruby-forum.com/.
> >

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Alright. But you can''t access it directly from the second action right?
The variable I want to pass is a very long array of objects, and I was 
afraid it wasn''t going to be efficient if I passed it through a form
(or
a session).

Julian Leviston wrote:
> pass it in on the form
> 
> <% form_remote_tag :url => {:action =>
''other_action'', :the_var =>
> @the_var } do -%>
> then in the destination action, set
> 
> @the_var = params[:the_var]
> 
> Julian.
> 
> Learn Ruby on Rails! Check out the FREE VIDS (for a limited time)
> VIDEO #4 coming soon!
> http://sensei.zenunit.com/
-- 
Posted via http://www.ruby-forum.com/.

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Shannon Clipt wrote:
> 
> Alright. But you can''t access it directly from the second action
right?
> The variable I want to pass is a very long array of objects, and I was 
> afraid it wasn''t going to be efficient if I passed it through a
form (or
> a session).
> 
> Julian Leviston wrote:
>> pass it in on the form
>> 
>> <% form_remote_tag :url => {:action =>
''other_action'', :the_var =>
>> @the_var } do -%>
>> then in the destination action, set
>> 
>> @the_var = params[:the_var]
>> 
>> Julian.
>> 
>> Learn Ruby on Rails! Check out the FREE VIDS (for a limited time)
>> VIDEO #4 coming soon!
>> http://sensei.zenunit.com/
When you submit that form it will make a ''new'' request back to
the
server.  Unfortunately rails really resets ''per request'' --
except for
session vars and things you pass back to it.
-- 
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by the way, the object i''m passing has sensitive data. should i still 
pass it through the form?
-- 
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Shannon Clipt wrote:
> by the way, the object i''m passing has sensitive data. should i
still
> pass it through the form?
only if you trust the security of your clients'' computers :)
I suppose if it''s sensitive save it to your session [or to a database 
then reload it]
-- 
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On 16 Apr 2008, at 16:46, Roger Pack wrote:
>
> Shannon Clipt wrote:
>> by the way, the object i''m passing has sensitive data. should
i still
>> pass it through the form?
>
> only if you trust the security of your clients'' computers :)
> I suppose if it''s sensitive save it to your session [or to a
database
> then reload it]
bearing in mind of course that with the default session store the  
session data is on the client''s computer.

Fred
>
> -- 
> Posted via http://www.ruby-forum.com/.
>
> >

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Frederick Cheung wrote:
|
| On 16 Apr 2008, at 16:46, Roger Pack wrote:
|
|> Shannon Clipt wrote:
|>> by the way, the object i''m passing has sensitive data. should
i still
|>> pass it through the form?
|> only if you trust the security of your clients'' computers :)
|> I suppose if it''s sensitive save it to your session [or to a
database
|> then reload it]
| bearing in mind of course that with the default session store the
| session data is on the client''s computer.
|

And keeping in mind that SSL should be used to encrypt transmitting
sensitive information over a hostile network like the internet.

- --
Phillip Gawlowski
Twitter: twitter.com/cynicalryan

At the bottom of a good deal of the bravery that appears in the world
there lurks a miserable cowardice.  Men will face powder and steel
because they cannot face public opinion.
~ -- Edwin Hubbel Chapin
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