Question

我想完成Yii2对config文件中的组件所做的事情在yii config：

'someComponent'=>
[
    'class' => '\namespace\to\class',
    'param1' => 'somevalue',
    'param2' => 'somevalue',
]

我怎么能做Yii在我自己的类中做的，给它一个组件文件数组然后我的类创建和实例并初始化它？

编辑：

配置文件：

'payment' => [
            'class' => 'backend\modules\payment\Bank',
            'components' => [
                'service'  => [
                    'class' => 'backend\modules\payment\components\Service',
                    'adaptors'=>[
                        'BankMeli' => [
                            'class'=>'backend\modules\payment\adaptors\BankMeli',
                            'test'=>'1',
                        ]
                    ]
                ],
            ],
        ],

服务组件：

namespace backend\modules\payment\components;

use Yii;
use yii\base\Component;

class Service extends Component
{
    public $adaptors = [];
    public function init()
    {
        parent::init();
        $adaptors = new \stdClass();
        foreach($this->adaptors as $key=>$adaptor)
        {
            $class = $adaptor['class'];
            unset($adaptor['class']);
            $adaptors->$key = Yii::createObject($class,$adaptor);
        }
        $this->adaptors = $adaptors;
    }

    public function run()
    {

    }
}

需要初始化的内部组件（BankMeli）：

namespace backend\modules\payment\adaptors;


use Yii;
use yii\base\Component;

class BankMeli extends Component
{
    public $test;

    public function __construct($config = [])
    {
        parent::__construct($config);
    }
    public function init(){
        parent::init();
    }
}

var_dump（service-＆gt; adapters）输出：

object(stdClass)[61]
  public 'BankMeli' => 
    object(backend\modules\payment\adaptors\BankMeli)[72]
      public 'test' => null
      private '_events' (yii\base\Component) => 
        array (size=0)
          empty
      private '_behaviors' (yii\base\Component) => null

解决：

我在另一个数组中传递了param数组并解决了问题：

$adaptors->$key = Yii::createObject($class,[$adaptor]);

Answer 1

使用Yii::createObject() yii2在配置文件中使用config创建组件对象。就像这样：

Yii::createObject($config['class'], $config['otherParamsWithoutClass']);

yii2中的任何内容扩展Object类，在构造函数中我们可以输入config params。 param1和param2应该是公共属性，或者模型应该有getter和setter。

public function __construct($config = [])
{
    if (!empty($config)) {
        Yii::configure($this, $config);
    }
    $this->init();
}

Yii 2初始化组件

1 个答案: