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How to delete all notifications for a member when he gets deleted?

  • Participant
    Level: Initiated
    Posts: 7
    Josh on March 21, 2025 at 10:56 pm #55211

    Hi,
    I have a plugin which is unfortunately very buggy and hardly maintained by the plugin author. This plugin throws a notification when a user writes a review for another user.
    The problem is, that these notifications not get deleted after a user – where the notification points to – is deleted by admin or delets himself. So other users still have notifications in their user settings or in the header and but when the click on that link a PHP error message appears cause that user doesn’t exists anymore.

    So how can I fix this? I had a look at the database and saw there were two tables regarding the notifications system, the bp_notifications and the bp_notifications_meta table.

    So my question is: Is it enough just to hook into the WP deleted_user action and delete all notifications with the same user id in the bp_notifications table?

    But does this not have influence on any other funtions of bp? And what is the bp_notifications_meta table for? Do I have to delete anything there as well?

  • Keymaster
    (BuddyDev Team)
    Posts: 24881
    Brajesh Singh on March 22, 2025 at 6:09 pm #55217

    Hi,
    Thank you for the question.

    I am sorry to hear your experience abut the plugin.

    There is not way well defined way to know which notifications belong to the deleted user. Most of the time the secondary_item_id is used for the original item id(could be the user).

    I will suggest searching for bp_notifications_add_notification in the reviews plugin to find out how they are dealing with the reviewer user id.(The user_id field in notification is for receiver user id).

    Notification meta table allows adding extra data to notifications. BuddyPress does not add any extra data. If you are using a plugin like BP Better Message, they might add some additional data in the meta table.

    Regards
    Brajesh

  • Participant
    Level: Initiated
    Posts: 7
    Josh on March 25, 2025 at 12:00 pm #55230

    Meanwhile the plugin author wrote and said, its a issue of buddypress and not his plugin. Strange.
    Anyway, I checked the notification table once again. The review plugin stores its information with the component_action column and the user id as the secondary_it_item column.

    So I hope if I write some routine which deletes all entries in this table with the related user (after_user-delete hook) I am fine and don’t destroy other things.

    What’s your opinion about that? Does any plugin has to take care of deleting data in these tables when a user gets deleted or is it a wordpress thing?

  • Keymaster
    (BuddyDev Team)
    Posts: 24881
    Brajesh Singh on March 28, 2025 at 12:24 pm #55239

    Hi Josh,
    Thank you for the reply.

    It is definitely a plugin bug. Not cleaning notifications on user delete is related to how that plugin uses notification and not related to BuddyPress. BuddyPress has no idea what is in secondary_item_id.

    You will need to use delete_user or deleted_user hook.

    Regards
    Brajesh

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