On Aug 26, 2008, at 11:53 PM, johnf wrote:
> I thought that scan just iterated over all the rows of a single
> bizobj (in
> this case the bizSubopenings) and it was possible to apply a
> function on each
> of the rows. I think you are saying that it is also possible to scan
> bizSubopening applying a function to each row of bizSubopening and
> applying
> the same function to the children and grand children.
The scan() function does not do that; it simply applies the function
to each row. Your earlier comment about 'set relation' behavior was
spot on: scan() explicitly does *not* do that. It uses the
_moveToRowNum() method, whose docstring reads:
""" For internal use only! Should never be called from a developer's
code.
It exists so that a bizobj can move through the records in its cursor
*without* firing additional code.
"""
The other option, for when you *do* want all the additional code
being fired, is to create a bizIterator object, which internally uses
self.prior() and self.next() to move through the bizobj's records
while updating child bizobjs at each step.
-- Ed Leafe
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