Rails - Apr 2006 - render (:action => ''xyz'') in a private controller method

All,

I have a controller method (A) which gets called and then delegates some 
validation to a private validation method (B).  This method in turn 
attempts to call

render(:action => ''xyz'')

in order to pass control back to the view upon an exception condition.

However, it simply completes the method B and returns control to A.

So, I take it that render only works inside of a controller method that 
is directly invoked based on a HTTP request?

I guess I can throw exceptions in my private method (B) up to my public 
controller method (A) and then handle them there?

Is that the preferred way to handle this?

Thanks,
Wes

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