fix: edit messages with votes (vercel#737)

lib/db/queries.ts

@@ -1,7 +1,7 @@
 import 'server-only';
 
 import { genSaltSync, hashSync } from 'bcrypt-ts';
-import { and, asc, desc, eq, gt, gte } from 'drizzle-orm';
+import { and, asc, desc, eq, gt, gte, inArray } from 'drizzle-orm';
 import { drizzle } from 'drizzle-orm/postgres-js';
 import postgres from 'postgres';
 
@@ -301,11 +301,28 @@ export async function deleteMessagesByChatIdAfterTimestamp({
   timestamp: Date;
 }) {
   try {
-    return await db
-      .delete(message)
+    const messagesToDelete = await db
+      .select({ id: message.id })
+      .from(message)
       .where(
         and(eq(message.chatId, chatId), gte(message.createdAt, timestamp)),
       );
+
+    const messageIds = messagesToDelete.map((message) => message.id);
+
+    if (messageIds.length > 0) {
+      await db
+        .delete(vote)
+        .where(
+          and(eq(vote.chatId, chatId), inArray(vote.messageId, messageIds)),
+        );
+
+      return await db
+        .delete(message)
+        .where(
+          and(eq(message.chatId, chatId), inArray(message.id, messageIds)),
+        );
+    }
   } catch (error) {
     console.error(
       'Failed to delete messages by id after timestamp from database',