update cache

database/index.ts

@@ -313,6 +313,21 @@ class ChatCacheDatabaseController {
         });
         });
     }
     }
 
 
+    public getChatByCode(code: string) {
+        return new Promise<Chat | null>((resolve) => {
+            if (!this.db) {
+                return resolve(null);
+            }
+            const store = this.buildStore(this.chatListKey);
+            const r = store.getAll();
+            r.onsuccess = (o) => {
+                const items = (o.target as any).result as Chat[];
+                resolve(items.find(i => i.biz_type_code === code) as Chat);
+            };
+            r.onerror = () => resolve(null);
+        });
+    }
+
     private buildChatMessageStore(chat: number) {
     private buildChatMessageStore(chat: number) {
         const k = this.buildChatMessageKey(chat);
         const k = this.buildChatMessageKey(chat);
         const db = this.messageDatabases.get(k) as IDBDatabase;
         const db = this.messageDatabases.get(k) as IDBDatabase;