fix: handle nullable recalled_by in mysql messages

server/db/mysql/tenant_adapter.go

@@ -82,6 +82,16 @@ func stampTenantMessage(id t.TenantID, msg *t.Message) *t.Message {
 	return msg
 }
 
+func finalizeTenantMessage(id t.TenantID, msg t.Message, recalledBy sql.NullInt64) t.Message {
+	msg.TenantID = id
+	msg.From = common.EncodeUidString(msg.From).String()
+	if recalledBy.Valid {
+		msg.RecalledBy = common.EncodeUidString(strconv.FormatInt(recalledBy.Int64, 10)).String()
+	}
+	msg.Content = common.FromJSON(msg.Content)
+	return msg
+}
+
 func stampTenantFile(id t.TenantID, file *t.FileDef) *t.FileDef {
 	if file != nil {
 		file.TenantID = id
@@ -1659,20 +1669,21 @@ func (a *adapter) TenantMessageGetByClientID(id t.TenantID, from t.Uid, clientMs
 	if cancel != nil {
 		defer cancel()
 	}
-	var msg t.Message
+	row := struct {
+		t.Message
+		RecalledBy sql.NullInt64 `db:"recalled_by"`
+	}{}
 	err := a.db.QueryRowxContext(ctx,
 		"SELECT id,createdat,updatedat,deletedat,delid,seqid,topic,`from`,client_msg_id,version,recalled_at,recalled_by,head,content "+
 			"FROM im_messages WHERE `from`=? AND client_msg_id=?",
-		decodeUID(from), clientMsgID).StructScan(&msg)
+		decodeUID(from), clientMsgID).StructScan(&row)
 	if err == sql.ErrNoRows {
 		return nil, nil
 	}
 	if err != nil {
 		return nil, err
 	}
-	msg.From = common.EncodeUidString(msg.From).String()
-	msg.Content = common.FromJSON(msg.Content)
-	msg.TenantID = id
+	msg := finalizeTenantMessage(id, row.Message, row.RecalledBy)
 	return &msg, nil
 }
 
@@ -1865,13 +1876,14 @@ func (a *adapter) TenantMessageGetAll(id t.TenantID, topic string, uid t.Uid, op
 	defer rows.Close()
 	msgs := make([]t.Message, 0, limit)
 	for rows.Next() {
-		var msg t.Message
-		if err = rows.StructScan(&msg); err != nil {
+		row := struct {
+			t.Message
+			RecalledBy sql.NullInt64 `db:"recalled_by"`
+		}{}
+		if err = rows.StructScan(&row); err != nil {
 			return nil, err
 		}
-		msg.From = common.EncodeUidString(msg.From).String()
-		msg.Content = common.FromJSON(msg.Content)
-		msgs = append(msgs, msg)
+		msgs = append(msgs, finalizeTenantMessage(id, row.Message, row.RecalledBy))
 	}
 	return msgs, rows.Err()
 }
@@ -1929,14 +1941,15 @@ func (a *adapter) TenantMessageSearch(id t.TenantID, topic string, uid t.Uid, qu
 	msgs := make([]t.Message, 0, limit)
 	nextCursor := ""
 	for rows.Next() {
-		var msg t.Message
-		if err = rows.StructScan(&msg); err != nil {
+		row := struct {
+			t.Message
+			RecalledBy sql.NullInt64 `db:"recalled_by"`
+		}{}
+		if err = rows.StructScan(&row); err != nil {
 			return nil, "", err
 		}
-		msg.From = common.EncodeUidString(msg.From).String()
+		msg := finalizeTenantMessage(id, row.Message, row.RecalledBy)
 		msg.Head = kvMapFromJSON(msg.Head)
-		msg.Content = common.FromJSON(msg.Content)
-		msg.TenantID = id
 		if len(msgs) == limit {
 			nextCursor = strconv.Itoa(msg.SeqId)
 			continue