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phorge-phorge/resources/sql/autopatches/20230917.fileattachment.01.delete.sql
Dylan F 2b7c0ec92f Destroy file attachments when file is deleted, or object is deleted
Summary:
Adds file attachment deletion logics:

- PhabricatorFile: delete the attachment if file is deleted
- destruction engine extension: delete attachment if object is deleted
- SQL patch: delete existing leftover attachments from deleted files

To apply the cleanup, as usual, run:

    ./bin/storage upgrade

This cleanup may take some time, proportionally to the size of these tables:

    phabricator_file.file
    phabricator_file.file_attachment

Just as an indication: the storage upgrade, in a Phorge with `file` count 1.3M rows and `file_attachment` consisting in 9K rows, it may delete 170K rows in less than 1 second on average hardware.

Closes T15110

Test Plan:
Apply the patch, run `./bin/storage/upgrade`:

- no "Unknown Object" in any "Referenced Files" curtain of any object.

Have phd daemon running.

Upload file, attach the file to a task, delete the file from the web interface:

- no "Unknown Object" in "Referenced Files" curtain of that task.
- the query `SELECT * FROM file_attachment WHERE filePHID = '<file phid>'` returns empty result

Upload file, attach the file to a task, delete the task from the `./bin/remove destroy` workflow:

- the query `SELECT * FROM file_attachment WHERE objectPHID = '<task phid>'` returns empty result

Reviewers: O1 Blessed Committers, avivey, valerio.bozzolan

Reviewed By: O1 Blessed Committers, avivey, valerio.bozzolan

Subscribers: Ekubischta, speck, tobiaswiese, valerio.bozzolan, Matthew, Cigaryno

Tags: #files

Maniphest Tasks: T15110

Differential Revision: https://we.phorge.it/D25051
2024-08-10 22:16:53 +02:00

6 lines
139 B
SQL

USE {$NAMESPACE}_file;
DELETE FROM file_attachment
WHERE NOT EXISTS
(SELECT *
FROM file
WHERE phid=file_attachment.filePHID)