Question

使用sequelize，我们无法执行包含来自其他模型（Player）的字段的查询，而不包括模型的名称作为属性。

我们想获得这个结果（查看每个对象的最后一个属性：number）：

async function getPlayers() {
   const playerRole = await sequelize.models.Role.getPlayerRole();    

   return sequelize.models.User.findAll({
     include: [{
       association: sequelize.models.User.hasOne(sequelize.models.UserRole),
       model: sequelize.models.UserRole,
       where: {
         club_id: this.clubId,
         team_id: this.id,
         role_id: playerRole.id
       }
     }, {
       association: sequelize.models.User.hasOne(sequelize.models.Player),
       model: sequelize.models.Player,
       where: {
         team_id: this.id,
       },
       attributes: ['number']
     }]
   });
 }

相反，我们得到了这个：

for ($i = 1; $i <= $message_count; ++$i)
   {
       $header = imap_header($imap, $i);
       $body = imap_fetchbody($imap, $i,2);
       $prettydate = date("jS F Y", $header->udate);
       $nom = imap_msgno($imap, $i);

       if (isset($header->from[0]->personal)) {
           $personal = $header->from[0]->personal;
       } else {
           $personal = $header->from[0]->mailbox;
       }

$subject=$header->Subject;

$email = "$personal <{$header->from[0]->mailbox}@{$header->from[0]->host}>";

        echo $nom;
        echo '<br><br>';
        echo "On $prettydate, $email said \"$body\".\n";
        echo '<br><br>';
   }

我们涉及4个模型：用户（几乎所有属性），播放器（有号码），角色（包含角色）和UserRole（与用户和角色相关）。

if( !empty($_POST) ){

    //--YOUR OTHER CODING--
    //...........

    $domain_url = (isset($_SERVER['HTTPS']) ? "https" : "http") . "://$_SERVER[HTTP_HOST]";
    $redirect_url = 'https://example.com/forms/thank-you/'; //-->MUST BE 'https://';

    header("Content-type: application/json");
    header("Access-Control-Allow-Credentials: true");
    header("Access-Control-Allow-Origin: *.ampproject.org");
    header("AMP-Access-Control-Allow-Source-Origin: ".$domain_url);

    if( isEmailAlreadyExist($_POST['email']) ){ //-->SAMPLE Valiation!
        //-->Any 40X status code! 
        //Reference-1: https://github.com/ampproject/amphtml/issues/6058
        //Reference-2: http://php.net/manual/pt_BR/function.http-response-code.php
        header("HTTP/1.0 412 Precondition Failed", true, 412);
        echo json_encode(array('errmsg'=>'This email already exist!'));
        die();
    }else{
        //--Assuming all validations are good here--
        if( empty($redirect_url) ){
            header("Access-Control-Expose-Headers: AMP-Access-Control-Allow-Source-Origin");
        }else{
            header("AMP-Redirect-To: ".$redirect_url);
            header("Access-Control-Expose-Headers: AMP-Redirect-To, AMP-Access-Control-Allow-Source-Origin");
        }
        echo json_encode(array('successmsg'=>'My success message. [It will be displayed shortly(!) if with redirect]'));
        die();
    }
}

Answer 1

您可以使用sequelize.col()，但您应该将raw: true添加到findAll调用，否则结果将转换为User模型实例，因此{无论如何，{1}}属性都会被忽略。

number

我删除了return sequelize.models.User.findAll({ attributes: { include: sequelize.col('Player.number') }, raw: true, // added to prevent returning User instances from the query, only simple JSON data include: [ { model: sequelize.models.UserRole, where: { club_id: this.clubId, team_id: this.id, role_id: playerRole.id } }, { model: sequelize.models.Player, where: { team_id: this.id, }, attributes: [] } ] });属性 - 我假设您已经在模型定义中声明了它们，因此在进行查询时不需要每次都使用它们。

必须在Sequelize实例上调用association方法。

无法删除Sequelize查询中的模型属性

1 个答案: