im_chat/app/enterprise/model/Friend.php

<?php
/**
 * raingad IM [ThinkPHP6]
 * @author xiekunyu <raingad@foxmail.com>
 */
namespace app\enterprise\model;

use app\BaseModel;
use think\facade\Db;

class Friend extends BaseModel
{
    protected $pk="friend_id";
    

    public static function getFriend($map){
       $list=self::where($map)->select();
       $data=[];
       if($list){
          $list=$list->toArray();
          foreach($list as $k=>$v){
             $data[$v['friend_user_id']]=$v;
          }
       }
       return $data;
    }

    public static function getFriendIds($uid)
    {
        $where = ['create_user' => $uid, 'delete_time' => 0, 'status' => 1, 'is_blacklist' => 0];
        $friendWhere = ['friend_user_id' => $uid, 'delete_time' => 0, 'status' => 1, 'is_blacklist' => 0];
        $user_friend = self::where($where)->column('friend_user_id');
        $create_user_friend = self::where($friendWhere)->column('create_user');
        return array_intersect($user_friend, $create_user_friend);
    }

    public static function getFriendName($uid, $friend_user_id)
    {
        $friendNickname = Friend::where(['create_user' => $uid, 'friend_user_id' => $friend_user_id, 'status' => 1])->value('nickname');
        $user = User::getUserInfo(['user_id' => $friend_user_id, 'status' => 1], 'user_id,realname,avatar');
        if (empty($friendNickname)) {
            $friendNickname = $user['realname'];
        }
        $avatar = $user['avatar'] ? getDiskUrl() .'/'. $user['avatar'] : avatarUrl($user['avatar'], $user['realname'], $user['user_id'], 120);
        return [
            'nickname' => $friendNickname,
            'avatar' => $avatar
        ];
    }

    // 同步更新取消黑名单
    public static function syncCancelBlacklist($uid)
    {
        $where = [
            'create_user' => $uid,
            'is_blacklist' => 1,
            'delete_time' => 0,
            'status' => 1
        ];
        $friend_ids = self::where($where)->column('friend_id');
        if ($friend_ids) {
            self::where('id', 'in', $friend_ids)->update(['is_blacklist' => 0]);
        }
    }
}