Main Koha release repository
https://koha-community.org
27a21083d9
purge_zero_balance_fees is used in cleanup_database.pl to determine which fees can be cleaned up.
It uses a simple SQL query to determine which rows in accountlines need to be removed:
463 my $sth = $dbh->prepare(
464 q{
465 DELETE FROM accountlines
466 WHERE date < date_sub(curdate(), INTERVAL ? DAY)
467 AND ( amountoutstanding = 0 or amountoutstanding IS NULL );
468 }
The function comes with the following warning:
451 B<Warning:> Because fines and payments are not linked in accountlines, it is
452 possible for a fine to be deleted without the accompanying payment,
453 or vise versa. This won't affect the account balance, but might be
454 confusing to staff.
This was a reasonable solution prior to the addition of account_offsets in 17.11. The problem now is that rows in accountlines which are linked as credits in accountlines will *always* have amountoutstanding marked as 0. These are linked to debits via account_offsets. purge_zero_balance_fees will delete credits and leave rows in account_offsets which link to deleted credits.
Sites using the --fees option cleanup_database.pl which upgrade to 17.11 may have all of their credits removed without warning.
Test Plan:
1) Apply this patch
2) prove t/db_dependent/Accounts.t
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Josef Moravec <josef.moravec@gmail.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
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Koha is a free software integrated library system (ILS).
Koha is distributed under the GNU GPL version 3 or later.
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Note: Koha does not accept pull requests from git hosting sites.
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For guidelines on submitting patches for Koha please visit https://wiki.koha-community.org/wiki/SubmitingAPatch
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