优化代码

LumenIM 同步SQL.sql

@@ -57,10 +57,15 @@ ALTER TABLE `lar_chat_records_invite` RENAME `lar_talk_records_invite`;
 ALTER TABLE `lar_chat_records_file` RENAME `lar_talk_records_file`;
 
 # lar_users_friends 数据表同步SQL
-ALTER TABLE `lar_users_friends` MODIFY `active` tinyint(3) unsigned DEFAULT '1' COMMENT '主动好友申请方[1:user1;2:user2;]';
+DELETE from `lar_users_friends` where `status` = 0;
-ALTER TABLE `lar_users_friends` MODIFY `status` tinyint(3) DEFAULT '0' COMMENT '好友状态 [-1:双方均解除好友关系;0:正常;1:user1 已删除对方;2:user2 已删除对方;]';
+ALTER TABLE `lar_users_friends` CHANGE `user1` `user_id` int(11) unsigned DEFAULT '0' COMMENT '用户id';
-ALTER TABLE `lar_users_friends` CHANGE `agree_time` `updated_at` datetime DEFAULT NULL COMMENT '更新时间';
+ALTER TABLE `lar_users_friends` CHANGE `user2` `friend_id` int(11) unsigned DEFAULT '0' COMMENT '好友id';
-UPDATE `lar_users_friends` SET `status` = CASE WHEN `status` = 0 THEN -1 WHEN `status` = 1 THEN 0  ELSE `status` END;
+ALTER TABLE `lar_users_friends` CHANGE `user1_remark` `remark` varchar(20) DEFAULT '' COMMENT '好友的备注';
+ALTER TABLE `lar_users_friends` MODIFY `status` tinyint(3) unsigned DEFAULT '0' COMMENT '好友状态 [0:否;1:是]';
+ALTER TABLE `lar_users_friends` MODIFY `created_at` datetime DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间';
+ALTER TABLE `lar_users_friends` CHANGE `agree_time` `updated_at` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间';
+ALTER TABLE `lar_users_friends` DROP COLUMN `active`;
+ALTER TABLE `lar_users_friends` DROP COLUMN `user2_remark`;
 
 # lar_users_friends_apply 数据表同步SQL
 ALTER TABLE `lar_users_friends_apply` MODIFY `status` tinyint(4) unsigned DEFAULT '0' COMMENT '申请状态[0:等待处理;1:已同意;2:已拒绝;]';

app/Command/TestCommand.php

@@ -23,6 +23,7 @@ use App\Constants\FileMediaType;
 use App\Model\Group\Group;
 use App\Model\Group\GroupMember;
 use App\Model\TalkList;
+use App\Model\UsersFriend;
 use App\Service\TalkService;
 use Hyperf\Command\Command as HyperfCommand;
 use Hyperf\Command\Annotation\Command;
@@ -177,5 +178,19 @@ class TestCommand extends HyperfCommand
         //var_dump(FriendRemark::getInstance());
 
         //var_dump(Group::isManager(2054,116));
+
+        UsersFriend::where('id', '<=', UsersFriend::max('id'))->chunk(100, function ($rows) {
+            foreach ($rows as $row) {
+                UsersFriend::create([
+                    'user_id'    => $row->friend_id,
+                    'friend_id'  => $row->user_id,
+                    'remark'     => $row->user2_remark,
+                    'status'     => 1,
+                    'created_at' => date('Y-m-d H:i:s'),
+                    'updated_at' => date('Y-m-d H:i:s'),
+                ]);
+            }
+        });
+
     }
 }

app/Controller/Api/V1/ContactsController.php

@@ -10,6 +10,7 @@
 
 namespace App\Controller\Api\V1;
 
+use App\Model\UsersFriend;
 use Hyperf\Di\Annotation\Inject;
 use Hyperf\HttpServer\Annotation\Controller;
 use Hyperf\HttpServer\Annotation\RequestMapping;
@@ -56,11 +57,11 @@ class ContactsController extends CController
      */
     public function getContacts()
     {
-        $rows = $this->contactsService->getContacts($this->uid());
+        $rows = UsersFriend::getUserFriends($this->uid());
         if ($rows) {
             $runArr = ServerRunID::getInstance()->getServerRunIdAll();
-            foreach ($rows as $row) {
+            foreach ($rows as $k => $row) {
-                $row->is_online = $this->socketClientService->isOnlineAll($row->id, $runArr);
+                $rows[$k]['is_online'] = $this->socketClientService->isOnlineAll($row['id'], $runArr);
             }
         }
 

app/Controller/Api/V1/EmoticonController.php

@@ -39,11 +39,11 @@ class EmoticonController extends CController
 
     /**
      * 获取用户表情包列表
-     * @RequestMapping(path="user-emoticon", methods="get")
+     * @RequestMapping(path="list", methods="get")
      *
      * @return ResponseInterface
      */
-    public function getUserEmoticon()
+    public function list()
     {
         $emoticonList = [];
         $user_id      = $this->uid();
@@ -74,11 +74,11 @@ class EmoticonController extends CController
 
     /**
      * 获取系统表情包
-     * @RequestMapping(path="system-emoticon", methods="get")
+     * @RequestMapping(path="system", methods="get")
      *
      * @return ResponseInterface
      */
-    public function getSystemEmoticon()
+    public function system()
     {
         $items = Emoticon::get(['id', 'name', 'icon'])->toArray();
         if ($items) {
@@ -142,12 +142,12 @@ class EmoticonController extends CController
 
     /**
      * 自定义上传表情包
-     * @RequestMapping(path="upload-emoticon", methods="post")
+     * @RequestMapping(path="upload", methods="post")
      *
      * @param Filesystem $filesystem
      * @return ResponseInterface
      */
-    public function uploadEmoticon(Filesystem $filesystem)
+    public function upload(Filesystem $filesystem)
     {
         $file = $this->request->file('emoticon');
         if (!$file->isValid()) {

app/Controller/Api/V1/TalkController.php

@@ -14,6 +14,7 @@ use App\Cache\LastMessage;
 use App\Cache\UnreadTalk;
 use App\Constants\TalkMsgType;
 use App\Constants\TalkType;
+use App\Support\UserRelation;
 use Hyperf\Di\Annotation\Inject;
 use Hyperf\HttpServer\Annotation\Controller;
 use Hyperf\HttpServer\Annotation\RequestMapping;
@@ -22,7 +23,6 @@ use App\Middleware\JWTAuthMiddleware;
 use Psr\Http\Message\ResponseInterface;
 use App\Model\User;
 use App\Model\TalkList;
-use App\Model\UsersFriend;
 use App\Model\Group\Group;
 use App\Service\TalkService;
 
@@ -41,25 +41,6 @@ class TalkController extends CController
      */
     public $talkService;
 
-    /**
-     * 判断是否是好友或者群成员关系
-     *
-     * @param int $user_id     用户ID
-     * @param int $receiver_id 接收者ID
-     * @param int $talk_type   对话类型
-     * @return bool
-     */
-    private function isFriendOrGroupMember(int $user_id, int $receiver_id, int $talk_type)
-    {
-        if ($talk_type == TalkType::PRIVATE_CHAT) {
-            return UsersFriend::isFriend($user_id, $receiver_id, true);
-        } else if ($talk_type == TalkType::GROUP_CHAT) {
-            return Group::isMember($receiver_id, $user_id);
-        }
-
-        return false;
-    }
-
     /**
      * 获取用户对话列表
      * @RequestMapping(path="list", methods="get")
@@ -93,14 +74,12 @@ class TalkController extends CController
         ]);
 
         $user_id = $this->uid();
-        if (!$this->isFriendOrGroupMember($user_id, $params['receiver_id'], $params['talk_type'])) {
+        if (!UserRelation::isFriendOrGroupMember($user_id, $params['receiver_id'], $params['talk_type'])) {
             return $this->response->fail('暂不属于好友关系或群聊成员，无法进行聊天！');
         }
 
         $result = TalkList::addItem($user_id, $params['receiver_id'], $params['talk_type']);
-        if (!$result) {
+        if (!$result) return $this->response->fail('创建失败！');
-            return $this->response->fail('创建失败！');
-        }
 
         $data = [
             'id'          => $result['id'],
@@ -234,7 +213,7 @@ class TalkController extends CController
         ]);
 
         $user_id = $this->uid();
-        if (!$this->isFriendOrGroupMember($user_id, $params['receiver_id'], $params['talk_type'])) {
+        if (!UserRelation::isFriendOrGroupMember($user_id, $params['receiver_id'], $params['talk_type'])) {
             return $this->response->fail('暂不属于好友关系或群聊成员，无法查看聊天记录！');
         }
 
@@ -289,7 +268,7 @@ class TalkController extends CController
         ]);
 
         $user_id = $this->uid();
-        if (!$this->isFriendOrGroupMember($user_id, $params['receiver_id'], $params['talk_type'])) {
+        if (!UserRelation::isFriendOrGroupMember($user_id, $params['receiver_id'], $params['talk_type'])) {
             return $this->response->fail('暂不属于好友关系或群聊成员，无法查看聊天记录！');
         }
 

app/Controller/Api/V1/TalkMessageController.php

@@ -10,8 +10,7 @@ use App\Constants\TalkMsgType;
 use App\Constants\TalkType;
 use App\Model\EmoticonItem;
 use App\Model\FileSplitUpload;
-use App\Model\Group\Group;
+use App\Support\UserRelation;
-use App\Model\UsersFriend;
 use App\Service\EmoticonService;
 use App\Service\TalkService;
 use Hyperf\Di\Annotation\Inject;
@@ -36,25 +35,6 @@ class TalkMessageController extends CController
      */
     public $talkService;
 
-    /**
-     * 判断是否是好友或者群成员关系
-     *
-     * @param int $user_id     用户ID
-     * @param int $receiver_id 接收者ID
-     * @param int $talk_type   对话类型
-     * @return bool
-     */
-    private function isFriendOrGroupMember(int $user_id, int $receiver_id, int $talk_type)
-    {
-        if ($talk_type == TalkType::PRIVATE_CHAT) {
-            return UsersFriend::isFriend($user_id, $receiver_id, true);
-        } else if ($talk_type == TalkType::GROUP_CHAT) {
-            return Group::isMember($receiver_id, $user_id);
-        }
-
-        return false;
-    }
-
     /**
      * 发送代码块消息
      * @RequestMapping(path="code", methods="post")
@@ -70,7 +50,7 @@ class TalkMessageController extends CController
         ]);
 
         $user_id = $this->uid();
-        if (!$this->isFriendOrGroupMember($user_id, $params['receiver_id'], $params['talk_type'])) {
+        if (!UserRelation::isFriendOrGroupMember($user_id, $params['receiver_id'], $params['talk_type'])) {
             return $this->response->fail('暂不属于好友关系或群聊成员，无法发送聊天消息！');
         }
 
@@ -85,9 +65,7 @@ class TalkMessageController extends CController
             'code'      => $params['code']
         ]);
 
-        if (!$record_id) {
+        if (!$record_id) return $this->response->fail('消息发送失败！');
-            return $this->response->fail('消息发送失败！');
-        }
 
         // 消息推送队列
         push_amqp(new ChatMessageProducer(SocketConstants::EVENT_TALK, [
@@ -118,7 +96,7 @@ class TalkMessageController extends CController
         ]);
 
         $user_id = $this->uid();
-        if (!$this->isFriendOrGroupMember($user_id, $params['receiver_id'], $params['talk_type'])) {
+        if (!UserRelation::isFriendOrGroupMember($user_id, $params['receiver_id'], $params['talk_type'])) {
             return $this->response->fail('暂不属于好友关系或群聊成员，无法发送聊天消息！');
         }
 
@@ -153,9 +131,7 @@ class TalkMessageController extends CController
             'original_name' => $file->getClientFilename(),
         ]);
 
-        if (!$record_id) {
+        if (!$record_id) return $this->response->fail('图片上传失败！');
-            return $this->response->fail('图片上传失败！');
-        }
 
         // 消息推送队列
         push_amqp(new ChatMessageProducer(SocketConstants::EVENT_TALK, [
@@ -187,7 +163,7 @@ class TalkMessageController extends CController
         ]);
 
         $user_id = $this->uid();
-        if (!$this->isFriendOrGroupMember($user_id, $params['receiver_id'], $params['talk_type'])) {
+        if (!UserRelation::isFriendOrGroupMember($user_id, $params['receiver_id'], $params['talk_type'])) {
             return $this->response->fail('暂不属于好友关系或群聊成员，无法发送聊天消息！');
         }
 
@@ -217,9 +193,7 @@ class TalkMessageController extends CController
             'save_dir'      => $save_dir,
         ]);
 
-        if (!$record_id) {
+        if (!$record_id) return $this->response->fail('表情发送失败！');
-            return $this->response->fail('表情发送失败！');
-        }
 
         // 消息推送队列
         push_amqp(new ChatMessageProducer(SocketConstants::EVENT_TALK, [
@@ -260,7 +234,7 @@ class TalkMessageController extends CController
         ]);
 
         $user_id = $this->uid();
-        if (!$this->isFriendOrGroupMember($user_id, $params['receiver_id'], $params['talk_type'])) {
+        if (!UserRelation::isFriendOrGroupMember($user_id, $params['receiver_id'], $params['talk_type'])) {
             return $this->response->fail('暂不属于好友关系或群聊成员，无法发送聊天消息！');
         }
 
@@ -268,9 +242,7 @@ class TalkMessageController extends CController
             'url', 'file_suffix', 'file_size'
         ]);
 
-        if (!$emoticon) {
+        if (!$emoticon) return $this->response->fail('表情不存在！');
-            return $this->response->fail('表情不存在！');
-        }
 
         $record_id = $this->talkService->createEmoticonMessage([
             'talk_type'   => $params['talk_type'],
@@ -285,9 +257,7 @@ class TalkMessageController extends CController
             'original_name' => '图片表情',
         ]);
 
-        if (!$record_id) {
+        if (!$record_id) return $this->response->fail('表情发送失败！');
-            return $this->response->fail('表情发送失败！');
-        }
 
         // 消息推送队列
         push_amqp(new ChatMessageProducer(SocketConstants::EVENT_TALK, [
@@ -341,9 +311,7 @@ class TalkMessageController extends CController
             $ids = $this->talkService->mergeForwardRecords($user_id, $params['receiver_id'], $params['talk_type'], $params['records_ids'], $items);
         }
 
-        if (!$ids) {
+        if (!$ids) return $this->response->fail('转发失败！');
-            return $this->response->fail('转发失败！');
-        }
 
         if ($receive_user_ids) {
             foreach ($receive_user_ids as $v) {
@@ -396,15 +364,13 @@ class TalkMessageController extends CController
         ]);
 
         [$isTrue, $message,] = $this->talkService->revokeRecord($this->uid(), $params['record_id']);
-        if ($isTrue) {
+        if (!$isTrue) return $this->response->fail($message);
-            push_amqp(new ChatMessageProducer(SocketConstants::EVENT_REVOKE_TALK, [
-                'record_id' => $params['record_id']
-            ]));
-        }
 
-        return $isTrue
+        push_amqp(new ChatMessageProducer(SocketConstants::EVENT_REVOKE_TALK, [
-            ? $this->response->success([], $message)
+            'record_id' => $params['record_id']
-            : $this->response->fail($message);
+        ]));
+
+        return $this->response->success([], $message);
     }
 
     /**

app/Model/TalkList.php

@@ -23,6 +23,8 @@ class TalkList extends BaseModel
 {
     protected $table = 'talk_list';
 
+    public $timestamps = true;
+
     protected $fillable = [
         'talk_type',
         'user_id',

app/Model/UsersFriend.php

@@ -4,20 +4,16 @@ declare (strict_types=1);
 
 namespace App\Model;
 
-use Hyperf\DbConnection\Db;
-
 /**
  * 表情包收藏数据表模型
  *
  * @property int    $id
- * @property int    $user1        用户1ID
+ * @property int    $user_id          用户ID
- * @property int    $user2        用户2ID
+ * @property int    $friend_id        好友ID
- * @property string $user1_remark 用户1好友备注
+ * @property string $remark           好友备注
- * @property string $user2_remark 用户2好友备注
+ * @property int    $status           好友状态
- * @property int    $active       主动邀请方[1:user1;2:user2;]
+ * @property string $created_at       创建时间
- * @property int    $status       好友状态[1:好友状态;0:已解除好友关系]
+ * @property string $updated_at       更新时间
- * @property string $agree_time   成为好友时间
- * @property string $created_at   创建时间
  * @package App\Model
  */
 class UsersFriend extends BaseModel
@@ -25,74 +21,58 @@ class UsersFriend extends BaseModel
     protected $table = 'users_friends';
 
     protected $fillable = [
-        'user1',
+        'user_id',
-        'user2',
+        'friend_id',
-        'user1_remark',
-        'user2_remark',
-        'active',
         'status',
-        'agree_time',
+        'created_at',
-        'created_at'
+        'updated_at',
     ];
 
     protected $casts = [
         'id'         => 'integer',
-        'user1'      => 'integer',
+        'user_id'    => 'integer',
-        'user2'      => 'integer',
+        'friend_id'  => 'integer',
-        'active'     => 'integer',
         'status'     => 'integer',
-        'created_at' => 'datetime'
+        'created_at' => 'datetime',
+        'updated_at' => 'datetime',
     ];
 
     /**
      * 获取用户所有好友
      *
-     * @param int $uid 用户ID
+     * @param int $user_id 用户ID
-     * @return mixed
+     * @return array
      */
-    public static function getUserFriends(int $uid)
+    public static function getUserFriends(int $user_id)
     {
-        $prefix = config('databases.default.prefix');
+        return UsersFriend::leftJoin('users', 'users.id', '=', 'users_friends.friend_id')
-        $sql    = <<<SQL
+            ->where('user_id', $user_id)->where('users_friends.status', 1)
-            SELECT users.id,users.nickname,users.avatar,users.motto,users.gender,tmp_table.friend_remark from {$prefix}users users
+            ->get([
-            INNER join
+                'users.id',
-            (
+                'users.nickname',
-              SELECT id as rid,user2 as uid,user1_remark as friend_remark from {$prefix}users_friends where user1 = {$uid} and `status` = 0
+                'users.avatar',
-                UNION all 
+                'users.motto',
-              SELECT id as rid,user1 as uid,user2_remark as friend_remark from {$prefix}users_friends where user2 = {$uid} and `status` = 0
+                'users.gender',
-            ) tmp_table on tmp_table.uid = users.id
+                'users_friends.remark as friend_remark',
-SQL;
+            ])->toArray();
-
-        $rows = Db::select($sql);
-
-        array_walk($rows, function (&$item) {
-            $item = (array)$item;
-        });
-
-        return $rows;
     }
 
     /**
      * 判断用户之间是否存在好友关系
      *
-     * @param int  $user_id1 用户1
+     * @param int  $user_id   用户ID
-     * @param int  $user_id2 用户2
+     * @param int  $friend_id 好友ID
-     * @param bool $cache    是否读取缓存
+     * @param bool $is_cache  是否允许读取缓存
      * @return bool
      */
-    public static function isFriend(int $user_id1, int $user_id2, bool $cache = false)
+    public static function isFriend(int $user_id, int $friend_id, bool $is_cache = false)
     {
-        // 比较大小交换位置
+        $cacheKey = "good_friends:{$user_id}_{$friend_id}";
-        if ($user_id1 > $user_id2) {
+        if ($is_cache && redis()->get($cacheKey)) {
-            [$user_id1, $user_id2] = [$user_id2, $user_id1];
-        }
-
-        $cacheKey = "good_friends:{$user_id1}_$user_id2";
-        if ($cache && redis()->get($cacheKey)) {
             return true;
         }
 
-        $isTrue = self::query()->where('user1', $user_id1)->where('user2', $user_id2)->where('status', 0)->exists();
+        $isTrue = self::query()->where('user_id', $user_id)->where('friend_id', $friend_id)->where('status', 1)->exists();
         if ($isTrue) {
             redis()->setex($cacheKey, 60 * 5, 1);
         }
@@ -108,10 +88,6 @@ SQL;
      */
     public static function getFriendIds(int $user_id)
     {
-        $prefix = config('databases.default.prefix');
+        return UsersFriend::where('user_id', $user_id)->where('status', 1)->pluck('friend_id')->toArray();
-        $sql    = "SELECT user2 as uid from {$prefix}users_friends where user1 = {$user_id} and `status` = 0 UNION all SELECT user1 as uid from {$prefix}users_friends where user2 = {$user_id} and `status` = 0";
-        return array_map(function ($item) {
-            return $item->uid;
-        }, Db::select($sql));
     }
 }

app/Service/ContactsService.php

@@ -35,6 +35,8 @@ class ContactsService extends BaseService
      */
     public function getContacts(int $user_id): array
     {
+
+
         $prefix = config('databases.default.prefix');
         $sql    = <<<SQL
             SELECT users.id,users.nickname,users.avatar,users.motto,users.gender,tmp_table.friend_remark from {$prefix}users users

app/Service/TalkService.php

@@ -26,6 +26,24 @@ class TalkService extends BaseService
 {
     use PagingTrait;
 
+    /**
+     * 获取好友备注
+     *
+     * @param int $user_id   用户ID
+     * @param int $friend_id 好友ID
+     * @return string
+     */
+    public function getFriendRemark(int $user_id, int $friend_id)
+    {
+        $remark = FriendRemark::getInstance()->read($user_id, $friend_id);
+        if ($remark) return $remark;
+
+        $remark = UsersFriend::where('user_id', $user_id)->where('friend_id', $friend_id)->value('remark');
+        if ($remark) FriendRemark::getInstance()->save($user_id, $friend_id, $remark);
+
+        return (string)$remark;
+    }
+
     /**
      * 获取用户的聊天列表
      *
@@ -70,27 +88,14 @@ class TalkService extends BaseService
             $data['is_top']      = $item['is_top'];
             $data['is_disturb']  = $item['is_disturb'];
             $data['msg_text']    = '......';
-            $data['updated_at']  = $item['updated_at'];
+            $data['updated_at']  = $item['updated_at'] ?: '2020-01-01 00:00:00';
 
             if ($item['talk_type'] == TalkType::PRIVATE_CHAT) {
-                $data['name']       = $item['nickname'];
+                $data['name']        = $item['nickname'];
-                $data['avatar']     = $item['user_avatar'];
+                $data['avatar']      = $item['user_avatar'];
-                $data['unread_num'] = UnreadTalk::getInstance()->read($item['receiver_id'], $user_id);
+                $data['unread_num']  = UnreadTalk::getInstance()->read($item['receiver_id'], $user_id);
-                $data['is_online']  = $socketFDService->isOnlineAll($item['receiver_id'], $runIdAll);
+                $data['is_online']   = $socketFDService->isOnlineAll($item['receiver_id'], $runIdAll);
-
+                $data['remark_name'] = $this->getFriendRemark($user_id, (int)$item['receiver_id']);
-                $remark = FriendRemark::getInstance()->read($user_id, $item['receiver_id']);
-                if ($remark) {
-                    $data['remark_name'] = $remark;
-                } else {
-                    $info = UsersFriend::select('user1', 'user2', 'user1_remark', 'user2_remark')
-                        ->where('user1', ($user_id < $item['receiver_id']) ? $user_id : $item['receiver_id'])
-                        ->where('user2', ($user_id < $item['receiver_id']) ? $item['receiver_id'] : $user_id)->first();
-                    if ($info) {
-                        $data['remark_name'] = $info->user1 == $item['receiver_id'] ? $info->user2_remark : $info->user1_remark;
-
-                        FriendRemark::getInstance()->save($user_id, (int)$item['receiver_id'], $data['remark_name']);
-                    }
-                }
             } else {
                 $data['name']   = strval($item['group_name']);
                 $data['avatar'] = $item['group_avatar'];
@@ -100,8 +105,6 @@ class TalkService extends BaseService
             if ($records) {
                 $data['msg_text']   = $records['text'];
                 $data['updated_at'] = $records['created_at'];
-            } else {
-                $data['updated_at'] = '2020-01-01 00:00:00';
             }
 
             return $data;

app/Support/UserRelation.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Support;
+
+use App\Constants\TalkType;
+use App\Model\Group\Group;
+use App\Model\UsersFriend;
+
+class UserRelation
+{
+    /**
+     * 判断是否是好友或者群成员关系
+     *
+     * @param int $user_id     用户ID
+     * @param int $receiver_id 接收者ID
+     * @param int $talk_type   对话类型
+     * @return bool
+     */
+    public static function isFriendOrGroupMember(int $user_id, int $receiver_id, int $talk_type)
+    {
+        if ($talk_type == TalkType::PRIVATE_CHAT) {
+            return UsersFriend::isFriend($user_id, $receiver_id, true);
+        } else if ($talk_type == TalkType::GROUP_CHAT) {
+            return Group::isMember($receiver_id, $user_id);
+        }
+
+        return false;
+    }
+}