[MODERATION] Refactor excluding watchers mechanism (squash)

This solves two bugs. One bug is that due to the JOIN with the
`forgejo_blocked_users` table, duplicated users were generated if a user
had more than one user blocked, this lead to receiving more than one
entry in the actions table. The other bug is that if a user blocked more
than one user, it would still receive a action entry by a
blocked user, because the SQL query would not exclude the other
duplicated users that was generated by the JOIN.

The new solution is somewhat non-optimal in my eyes, but it's better
than rewriting the query to become a potential perfomance blocker (usage
of WHERE IN, which cannot be rewritten to a JOIN). It simply removes the
watchers after it was retrieved by the SQL query.
This commit is contained in:
Gusted 2024-01-15 00:22:06 +01:00
parent cd1eadd923
commit c63c00b39b
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5 changed files with 87 additions and 17 deletions

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@ -10,8 +10,6 @@ import (
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/timeutil"
"xorm.io/builder"
)
// WatchMode specifies what kind of watch the user has on a repository
@ -131,18 +129,14 @@ func WatchRepo(ctx context.Context, userID, repoID int64, doWatch bool) (err err
return err
}
// GetWatchersExcludeBlocked returns all watchers of given repository, whereby
// the doer isn't blocked by one of the watchers.
func GetWatchersExcludeBlocked(ctx context.Context, repoID, doerID int64) ([]*Watch, error) {
// GetWatchers returns all watchers of given repository.
func GetWatchers(ctx context.Context, repoID int64) ([]*Watch, error) {
watches := make([]*Watch, 0, 10)
return watches, db.GetEngine(ctx).
Join("INNER", "`user`", "`user`.id = `watch`.user_id").
Join("LEFT", "forgejo_blocked_user", "forgejo_blocked_user.user_id = `watch`.user_id").
Where("`watch`.repo_id=?", repoID).
return watches, db.GetEngine(ctx).Where("`watch`.repo_id=?", repoID).
And("`watch`.mode<>?", WatchModeDont).
And("`user`.is_active=?", true).
And("`user`.prohibit_login=?", false).
And(builder.Or(builder.IsNull{"`forgejo_blocked_user`.block_id"}, builder.Neq{"`forgejo_blocked_user`.block_id": doerID})).
Join("INNER", "`user`", "`user`.id = `watch`.user_id").
Find(&watches)
}