I'm using rdflib with the ZODB storage. I'm saving the ZODB Store object
in the ZODB, and wrapping a graph around it when I need to pull it out
and use it, which seems like what I should be doing (side note, biggest
problem with rdflib = lack of docs ;).
However, when I want to serialize the RDF store using the following code...
> indexDb = DB(FileStorage.FileStorage("../data/pageIndex.fs"))
> c = indexDb.open() # Open a connection to the ZODB
> s = c.root()["store"] # Get the store object from the ZODB.
> g = Graph(s) # Wrap a graph around the store
> g.save("test.rdf", format="pretty-xml")
> c.close()
... I get a ZODB error "Cannot close a connection joined to a
transaction" on c.close(), which indicates that the store object has
been modified but not committed.
But serializing the graph shouldn't have changed the underlying objects,
should it?
Of course, I can get rid of the error by aborting the transaction before
closing the connection...
> transaction.get().abort()
...but I'm wondering if I'm doing something wrong that I should fix. Or
if serializing the graph actually change the data in some significant
way so that I really should be committing whatever changes it's making?
Anyone have any ideas?
Thanks,
Matt
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