Rails - Aug 2007 - Q about returning to the action that called the method

I have a few actions which, after completing, i want to return to the
action that called them.  Currently the way i''m doing this is passsing
through a parameter with the name of the calling method, eg

<%= link_to ''Delete this picture'', :action =>
''delete_picture'', :id =>
picture, :came_from => "edit_story" %>

Then in the callee method i refer to this in the redirect_to part:

redirect_to :action => params[:came_from], :id => @story if
params[:came_from]
flash[:warning] = "Couldn''t find a story to return to, returning
to
list"
redirect_to :action => "list"

Is there a nicer way to get the calling method, without having to
remember to explicitly pass it through?  Or a nicer alternative to what
i''m doing, generally?

thanks
max
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Max Williams wrote:
> Is there a nicer way to get the calling method, without having to
> remember to explicitly pass it through?  Or a nicer alternative to what
> i''m doing, generally?
> 
> thanks
> max
try to mess around with redirect_to :back and see if it helps you...

M^
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(continuing Mikkel''s post)

redirect_to :back
================(taken from api)

back: Back to the page that issued the request. Useful for forms that 
are triggered from multiple places. Short-hand for 
redirect_to(request.env["HTTP_REFERER"])

The redirection happens as a "302 Moved" header.

When using redirect_to :back, if there is no referrer, RedirectBackError 
will be raised. You may specify some fallback behavior for this case by 
rescueing RedirectBackError.


( http://api.rubyonrails.com/classes/ActionController/Base.html#M000271 
)
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Mikkel Bruun wrote:
> 
> try to mess around with redirect_to :back and see if it helps you...
> 
Trying this made me realise that when i delete a picture, i actually 
need to go back TWO steps, not just one.  So i think i''m better off 
sticking with my explicit  parameter passing method to avoid confusion.

"redirect_to :back" is good to know though, might be useful in future.
Thanks!

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