如何遍历 Yii CActiveDataProvider 对象?

问题描述

如何遍历数据提供者对象?我想访问返回的每一行的名称"字段并构建一个列表.你能帮忙吗?

How to iterate over a dataprovider object? I want to access the 'name' field of each row returned and build a list. Can you help?

表/模型的表结构categories

CREATE TABLE IF NOT EXISTS `categories` (
  `idCategory` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `name` varchar(64) NOT NULL,
  PRIMARY KEY (`idCategory`) USING BTREE
) ENGINE=InnoDB  DEFAULT CHARSET=utf8 AUTO_INCREMENT=55 ;

*我的控制器类别中的功能*

*Function in my Controller Categories*

    $names = array();
    public function returnCategoryNames()
{
    $dataProvider= new CActiveDataProvider('Categories');
    $dataProvider->setPagination(false);
    $count = $dataProvider->totalItemCount();

    for($i = 0; $i < $count; $i++){

             // this is where I am lost...
             $myname = $dataProvider->data[$i]->name;
             array_push($names, $myname);

    }   

       return $names;

}

推荐答案

试试这个:

public function returnCategoryNames()
{
  $dataProvider= new CActiveDataProvider('Categories');
  $dataProvider->setPagination(false);
  //$count = $dataProvider->totalItemCount();
  $names = array();
  foreach($dataProvider->getData() as $record) {
    $names[] = $record->name;
  }
  return array_unique($names);
}

但是你不需要使用数据提供者，而是使用模型

However you dont need to use a data provider, instead just use the model

foreach(Categories::model()->findAll() as $record) {

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