[Koha-bugs] [Bug 20271] Merge deleted biblio, biblioitems, biblio_metadata, and items tables with their "alive" cousins

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=20271

--- Comment #187 from Benjamin Rokseth <benjamin.rokseth at deichman.no> ---
I register this stopped before summer and awaits some discussion. As to the
issues mentioned, here's my 2c:
> - check an item out, then check it in
> - delete the item
> 
> 1. on /members/readingrec.pl?borrowernumber=51
> a) before "This patron has no circulation history."
> b) after we see a table with all item's info

> 2. on /catalogue/issuehistory.pl?biblionumber=42
> a) before "Amy's diary, by Lee has never been checked out."
> b) after "Checked out 1 times" with the table (and a barcode with a link to
> the item)

both these are related to history and not items. Deleting an item "unlinks" it,
meaning the copy no longer exists, so it should disappear from search and
circulation, but should not affect history. Anonymization though is another
concern, but that has to do with issues and fines, not items and biblios. Many
things were broken due to the splitting of tables, and these are examples of
things that now actually can be fixed.

As to Virtualshelves I know little of what they are supposed to do. There is a
link from virtualshelfcontents table to biblionumber. If the intended use is
for keeping lists I see no reason in deleting it. If it is used for browsing or
some virtual display it should probably be deleted.

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