tken/application/api/controller/Userfollow.php

<?php

namespace app\api\controller;

use app\common\controller\Api;
use think\Db;
/**
 * 关注
 */
class Userfollow extends Api
{
    protected $noNeedLogin = [];
    protected $noNeedRight = ['*'];

    //关注某人
    public function follow_one(){
        $follow_uid = input('follow_uid',0);
        if(!$follow_uid){
            $this->error(__('Invalid parameters'));
        }

        $map = [
            'uid' => $this->auth->id,
            'follow_uid' => $follow_uid,
        ];

        $check = Db::name('user_follow')->where($map)->find();
        if($check){
            $this->success('success');
        }

        $id = Db::name('user_follow')->insertGetId($map);

        $this->success('success',$id);
    }

    //取关某人
    public function un_follow_one(){
        $follow_uid = input('follow_uid',0);
        if(!$follow_uid){
            $this->error(__('Invalid parameters'));
        }

        $map = [
            'uid' => $this->auth->id,
            'follow_uid' => $follow_uid,
        ];

        //不检查，全删

        $rs = Db::name('user_follow')->where($map)->delete();
        $this->success('success');
    }
}