Fix two database errors (#3483)

* Fixes error when an admin tries transferring project ownership
* Fixes error when trying to delete a user when they previously have a transaction

Co-authored-by: Jai Agrawal <18202329+Geometrically@users.noreply.github.com>

apps/labrinth/.sqlx/query-f1f93419f4394c702f256fe3e5de0368ee972ed20bd4d4b2490c655fde999dda.json

@@ -0,0 +1,15 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "\n                UPDATE charges\n                SET user_id = $1\n                WHERE user_id = $2\n                ",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Left": [
+        "Int8",
+        "Int8"
+      ]
+    },
+    "nullable": []
+  },
+  "hash": "f1f93419f4394c702f256fe3e5de0368ee972ed20bd4d4b2490c655fde999dda"
+}

apps/labrinth/src/database/models/user_item.rs

@@ -657,6 +657,18 @@ impl User {
             .execute(&mut **transaction)
             .await?;
 
+            sqlx::query!(
+                "
+                UPDATE charges
+                SET user_id = $1
+                WHERE user_id = $2
+                ",
+                deleted_user as UserId,
+                id as UserId,
+            )
+            .execute(&mut **transaction)
+            .await?;
+
             sqlx::query!(
                 "
                 DELETE FROM user_backup_codes

apps/labrinth/src/routes/v3/teams.rs

@@ -936,9 +936,15 @@ pub async fn transfer_ownership(
     let mut transaction = pool.begin().await?;
 
     // The following are the only places new_is_owner is modified.
+    if let Some(former_owner) =
+        TeamMember::get_from_team_full(id.into(), &**pool, &redis)
+            .await?
+            .into_iter()
+            .find(|x| x.is_owner)
+    {
         TeamMember::edit_team_member(
             id.into(),
-        current_user.id.into(),
+            former_owner.user_id,
             None,
             None,
             None,
@@ -949,6 +955,7 @@ pub async fn transfer_ownership(
             &mut transaction,
         )
         .await?;
+    }
 
     TeamMember::edit_team_member(
         id.into(),