--On 22. Juni 2008 08:54:14 -0700 tsmiller <[EMAIL PROTECTED]> wrote:
I have two questions. 1) When I already have a storeNumber and I save a record to db.dbRoot['books'][storeNumber][bookNumber] = record I have to set the _p_changed flag on the 'books' IOBTREE structure to get the book to save.
I don't see why you need to set _p_changed here. The change should be noticed automatically.
Which means that it saves the ENTIRE 'books' IOBTREE' structure every time a save a single book. (at least it looks like it is doing this).
Such a change will write only the data of corresponding bucket back to the ZODB but not the complete object. That's why we are having BTrees.
When I edit a book and save it the database grows by more than 64k. And it looks like it will get worse and worse as more books are added. Am I looking at this correctly. Or am I doing something really ignorant?
Your code using IOBTrees looks fine (except the unnecessary usage of _p_changed). Your observations or conclusions appear weird to me.
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