On Thu, Dec 17, 2009 at 4:06 PM, Marius Gedminas mar...@gedmin.as wrote:
I'd like to implement the following feature for zodbbrowser: given a
persistent object X, find all other persistent objects that have
references to it.
My use case for this is debugging: e.g. given a log entry that mentions
a conflict error about an OOBTreeBucket, I'd like to know which OOBTree
object contains it, and what object wraps the OOBTree, and at that point
I usually see a container with a __name__ and __parent__ and can figure
out what's going on.
I realize that ZODB doesn't keep track of backreferences, so the only
way to get that is to do a full object traversal, which is expensive in
both CPU and memory.
...
? Is there existing code I could use for inspiration? zodbex? zc.zodbgc?
Bits and pieces of ZODB itself?
zc.zodbdgc's multi-zodb-check-refs script will optionally produce a database
of reverse references that your browser could use.
Note that building this database can take a very long time.
Jim
--
Jim Fulton
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