Seems that it is impossible, it's a language restriction.
The solution was to call the class itself, by using HelperName::method_name()
from within the function.
Question
In a view, I've created a function that masks some repeating helper calls.
The problem is that it can't use the $this variable, since it's not in a context. the error is:
Fatal error: Using $this when not in object context
it's cake 1.3
Solution
Seems that it is impossible, it's a language restriction.
The solution was to call the class itself, by using HelperName::method_name()
from within the function.