User.follow_all: ensure its stays unique

2019-01-31 18:07:46 +01:00 · 2019-01-31 18:07:46 +01:00 · 308b35ebe2
commit 308b35ebe2
parent 44913c1019
2 changed files with 23 additions and 1 deletions
--- a/lib/pleroma/user.ex
+++ b/lib/pleroma/user.ex
@ -315,7 +315,16 @@ defmodule Pleroma.User do
    q =
      from(u in User,
        where: u.id == ^follower.id,
-        update: [set: [following: fragment("array_cat(?, ?)", u.following, ^followed_addresses)]]
+        update: [
+          set: [
+            following:
+              fragment(
+                "array(select distinct unnest (array_cat(?, ?)))",
+                u.following,
+                ^followed_addresses
+              )
+          ]
+        ]
      )

    {1, [follower]} = Repo.update_all(q, [], returning: true)