I have a controller a_bs_controller that usually has to find A by
a_id:. So, among others, it has these methods:
def update
this_a
. . .
end
. . .
def this_a
@a = A.find(params[:a_id])
end
My difficulty arises in that sometimes this controller is passed :a_id
in a nested hash as [:a]{:id], with or without :a_id in another
portion of a nested hash. .
params => { :controller => :a_bs, . . . , :a => { :id => 'x'}, :c
=> 'value', :b => { a_id => 'x', :description => 'value' }}
What I would really like to do is to discover some method of setting
params[:a_id] in the views that return it as a nested hash otherwise.
Failing that I need to extract the :id of :a from whatever params I am
handed. I should never receive :a_id simply as :id in a simple hash
as is the usual case for as_controller.
I tried to solve this in the view by modifying the params hash both
directly and through a hidden field. In both cases the result was
nested inside of a hash named :b. I have also played with
constructing a method to walk down the hashes to find :a_id, however,
I have put that aside for now to see if my problem is really my
approach to the solution.
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