I've got a component to do some common functions for a number of
controllers.  When I'm in those controllers, I can use globally-common
functions from the app_controller.  But when I'm in a component called
by a controller, those functions from the app_controller aren't
available.  Isn't that sort of the point of the app_controller, and
since a component is under a controller, shouldn't it be able to
access?  I don't quite understand why $this loses all its information
once you roll into a component.

Why is this the case (interested in the theory behind this part of the
MVC), and is there a best practice way to access things from the
app_controller in a component?

Thanks.

--David

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