聊天，基本完结

app/chat/model/ChatMessage.php

@@ -49,6 +49,7 @@ class ChatMessage extends BaseModel
                     $avatar = $chat_user['avatar'];
                     $name = $chat_user['nick_name'];
                     $group_id = '';
+                    $data[$i]['user_id'] = $session['group_id'];
                 }elseif($session['chat_type'] == 2) {
                     $group_info = Db::name('chat_group')->where(['id' => $session['group_id']])->field('id,name,avatar')->find();
                     $avatar = $group_info['avatar'];
@@ -57,6 +58,7 @@ class ChatMessage extends BaseModel
                     if($lastMsg) {
                         $chat_user = Db::name('chat_user')->where(['user_id' => $lastMsg['from_id']])->field('nick_name,avatar')->find();
                     }
+                    $data[$i]['user_id'] = $group_id;
                 }
                 // 单聊的话 两个人对话用一样的会话ID
                 $msg = '';