Question

很抱歉，我的标题可能无法解释我想要实现的目标，我有一系列国家/地区，我希望将其保存到以下数据库中是我的代码

public function actionCountries(){
    $countries = array("AF" => "Afghanistan",
    "AX" => "Åland Islands",
    "AL" => "Albania",
    "DZ" => "Algeria",
    "AS" => "American Samoa",
    "AD" => "Andorra",
    "AO" => "Angola",
    "AI" => "Anguilla",
    "AQ" => "Antarctica",
    "AG" => "Antigua and Barbuda",
    "AR" => "Argentina",
    "AM" => "Armenia",
    "AW" => "Aruba",
    "AU" => "Australia",
    "AT" => "Austria",
    "AZ" => "Azerbaijan",
    "BS" => "Bahamas",
    "BH" => "Bahrain",
    "BD" => "Bangladesh",
    "BB" => "Barbados",
    "YE" => "Yemen",
    "ZM" => "Zambia",
    "ZW" => "Zimbabwe");

    $model = new Country();
    foreach($countries as $code => $name){
       $model->code = $code
       $model->code = $name
       if($model->save()){
         echo $model->countryId;
       }
      }

}

我想通过一次单击将所有国家/地区保存到数据库中，但我得到的结果是空的，如果我为save（）方法提供了一个false参数，我将数组的最后一个元素保存到了数据库如下

$model = new Country();
foreach($countries as $code => $name){
   $model->code = $code
   $model->code = $name
   if($model->save(false)){
     echo $model->countryId;
   }
  }
  this code will save only the last element in the array while the first code did nothing

对此感谢的任何帮助

Answer 1

这是因为

$model = new Country();

在循环之外，所以你一遍又一遍地保存相同的模型。在循环中移动它。

顺便说一下 - 效率不高。请查看batchInsert()方法，以获得更加内存友好的方法。

如何在yii2中一键保存多个列

1 个答案: