See also: https://bugs.launchpad.net/mahara/+bug/505732
Deleting plugins is semi-supported in Mahara. We don't provide a way to do it through the UI, but there is one sentence about it in the manual (http://manual.mahara.org/en/1.5/site_admin/extensions.html ): "In order to delete a plugin completely, you must delete the code and all database tables that pertain to the plugin." It would appear that this advice is incomplete. It's not enough just to delete the plugin's own tables (e.g. "artefact_resume_book"). You also need to delete it from several system tables (e.g. "artefact", "artefact_config", "artefact_cron", etc). Here's an oldish wiki page showing all the many things you have to delete to clear out an artefact plugin: https://wiki.mahara.org/index.php/Plugins/Artefact/My_Learning/Uninstalling So, the least we could do on this, is update the manual to be a bit more comprehensive. -- You received this bug notification because you are a member of Mahara Contributors, which is subscribed to Mahara. Matching subscriptions: Subscription for all Mahara Contributors -- please ask on #mahara-dev or mahara.org forum before editing or unsubscribing it! https://bugs.launchpad.net/bugs/1287344 Title: artefact installed upgrade problem Status in Mahara ePortfolio: Confirmed Bug description: When there is an artefact plugin missing and one tries to upgrade another artefact plugin there is an error: [WAR] cb (lib/errors.php:739) Failed to get a recordset: postgres7 error: [-1: ERROR: update or delete on table "artefact_installed_type" violates foreign key constraint "arte_art_fk" on table "artefact", referer: https://mahara-testing/admin/upgrade.php [Tue Mar 04 08:52:46 2014] [error] [client 127.0.0.1] [WAR] cb (lib/errors.php:739) DETAIL: Key (name)=(socialprofile) is still referenced from table "artefact".] in adodb_throw(DELETE FROM "artefact_installed_type" WHERE (plugin = ? AND name NOT IN (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)), Array), referer: https://mahara-testing/admin/upgrade.php This is due to the fact the missing plugin has artefacts in the artefact table. This line in lib/upgrade.php (approx line 500) delete_records_select('artefact_installed_type', $select, array_merge(array($pluginname),$types)); needs to have some sort of checking if associated items exist for the plugin being removed and remove them first (or have some try { } catch (Exception $e) {} to let the user know that there was an issue with plugin A but still allow plugin B to be upgraded. To manage notifications about this bug go to: https://bugs.launchpad.net/mahara/+bug/1287344/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~mahara-contributors Post to : mahara-contributors@lists.launchpad.net Unsubscribe : https://launchpad.net/~mahara-contributors More help : https://help.launchpad.net/ListHelp
