Bug 24527: misc/cronjobs/update_totalissues.pl problem with multiple items
misc/cronjobs/update_totalissues.pl when issuing statistics table, no-incremental, has a problem for biblio with multiple items.
The first SQL query gets the biblios linked to items with issues in statistics :
SELECT
biblio.biblionumber, COUNT(statistics.itemnumber)
FROM
biblio
LEFT JOIN
items
ON
(biblio.biblionumber=items.biblionumber)
LEFT JOIN
statistics
ON
(items.itemnumber=statistics.itemnumber)
WHERE
statistics.type = 'issue'
$limit
GROUP BY
biblio.biblionumber
The second SQL query is :
SELECT
biblio.biblionumber, 0
FROM
biblio
LEFT JOIN
items
ON
(biblio.biblionumber=items.biblionumber)
LEFT JOIN
statistics
ON
(items.itemnumber=statistics.itemnumber)
WHERE
statistics.itemnumber IS NULL
GROUP BY
biblio.biblionumber
The problem is that this second query will set to 0 where ANY item has no entry in statistics table.
So when running it sets 0 to the biblio that had a value from first
query.
I think the best fix is to use "WHERE statistics.type = 'issue'" inside que JOIN :
LEFT JOIN statistics ON (items.itemnumber=statistics.itemnumber AND statistics.type = 'issue')
Test plan :
1) Begin with an empty database
2) Create a biblio 1 with no items
3) Create a biblio 2 with 3 items
4) Create a biblio 3 with 2 items
5) Checkout and checkin all items of biblio 2
6) Checkout and checkin the firt item of biblio 3
7) run misc/cronjobs/update_totalissues.pl --use-stats -v
8) Check biblio 1 has biblioitems.totalissues = 0
9) Check biblio 2 has biblioitems.totalissues = 3
10) Without patch the biblio 3 has biblioitems.totalissues = 0
11) With patch the biblio 3 has biblioitems.totalissues = 1
12) Check misc/cronjobs/update_totalissues.pl --incremental is OK
Signed-off-by: Bernardo Gonzalez Kriegel <bgkriegel@gmail.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
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