新版微信插件加入已有用户微信的绑定和解绑

common判断绑定

function isbindWx($user_id='')
{
    if(empty(db("weixin_user")->where("user_id",$user_id)->find())){
        return false;
    }else{
        return true;
    }
}

html

{if(isbindWx($user.id))}
                <a class="unbind" confirmMsg="确认要解绑微信吗？你可能会错过重要通知！" href="/index/user/unbinding" style="background:#dedede">微信已绑定</a>
            {else}
                <a class="unbind" href="/index/user/binding">绑定微信</a>
            {/if}

index/user添加

    /**
     * @notes 已有用户绑定微信
     */
    public function binding()
    {
        $url = $this->request->get('url/s');
        $url = empty($url) ? url("index/user/index") : $url;
        $user_id=$this->auth->id;

        $result =false;
        $code=$this->request->param("code");
        if(empty($code)){
            $redirectUrl = (new \addons\weixin\library\WechatService)->application()->oauth->redirect(request()->domain().url('index/user/binding'))->getTargetUrl();
            //dump($redirectUrl);exit;
            header('Location: ' . $redirectUrl);
            exit;
        }
        try {
            $response = (new \addons\weixin\library\WechatService)->application()->oauth->scopes(['snsapi_userinfo'])->user()->getOriginal();
            if (!isset($response['openid']) || empty($response['openid'])) {
                $this->error("获取openID失败");
            }
            $userServer = new \app\weixin\service\WechatUserService($response, 'wechat');
            $createAuth = $userServer->createAuth($this->auth->id);
            $result= $createAuth ? true : false;
        } catch (\Exception $e) {
            $this->error($e->getMessage());
        }
        if ($result) {
            $this->success('绑定成功',$url);
        }
        $this->error('绑定失败，未知错误！',$url);
    }

    /**
     * @notes 解绑微信
     */
    public function unbinding()
    {

        $user_id =$this->auth->id;

        if(db("weixin_user")->where("user_id",$user_id)->delete()){
            $this->success("解绑成功！");
        }
        $this->error('解绑失败！');
    }