https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=20271 Bug ID: 20271 Summary: Merge deleted/old tables with their "alive" cousins Change sponsored?: --- Product: Koha Version: master Hardware: All OS: All Status: NEW Severity: major Priority: P1 - high Component: Database Assignee: koha-bugs@lists.koha-community.org Reporter: boutrosboutrosboutros@gmail.com QA Contact: testopia@bugs.koha-community.org In Koha's DB, instead of having a "soft" deletion of entries by flagging the deleted one as so, the rows in the db is actually deleted, but only after a new row in a different table is inserted. Koha's DB is relational, so there is a cascade of links between each object: a biblio is referred by many items, and each item is referred by issues, holds, messages. E.g.: when a row in the item table is moved from "items" to "deleted_items", then all the references from holds, transfers and so on will be broken. The suggested more orthodox approach to this would be to add a "deleted_at" column, which is normally null unless the row is deleted, then it set to the timestamp of when it was deletion. This means that the row is still there and will still be referred by other tables, but it just won't be shown in the relevant lists. This would improve the maintenance of Koha in many ways (e.g.: the auto_increment id on those tables caused lots of issues when you add an item and delete it immediately after. the next new item will have the same itemnumber as the previously deleted one, clashing with it in many ways). This bug is about merging the all these tables: deletedborrowers => borrowers deletedbiblio => biblio deletedbiblioitems => biblioitems deletedbiblio_metadata => biblio_metadata deleteditems => items old_issues => issues old_reserves => reserves -- You are receiving this mail because: You are the assignee for the bug. You are watching all bug changes.