我想在我的控制器中获得同一模型的多个示例。我看到了this wiki for Yii 1.1并尝试这样做，但在我的代码中，只有表单中的最后一个示例可以从控制器中访问我的代码在这里（我用错误和变量值注解了代码）：

$model = new Person(['scenario' => 'create_update']);
$contractDate = new DatePart(); // DatePart is my own class
$contractExpirationDate = new DatePart(); // DatePart is my own class

if ($model->load(Yii::$app->request->post()) &&
    $contractDate->load(Yii::$app->request->post()) &&
    $contractExpirationDate->load(Yii::$app->request->post())){

    Yii::info(Yii::$app->request->post(),'test'); // only one instance of Person and one instance of DatePart are available here
    Yii::info($_POST['DatePart'],'test'); // only last instance of DatePart (contractExpirationDate in html form) is available here
    Yii::info($_POST['DatePart'][0],'test'); // Error: Undefined offset: 0
    Yii::info($_POST['DatePart'][1],'test'); // Error: Undefined offset: 1

    $model->save();
    return $this->redirect(['view', 'id' => $model->id]);
} else {
    return $this->render('create', [
        'model' => $model,
        'contractDate' => $contractDate,
        'contractExpirationDate' => $contractExpirationDate,
    ]);
}

这是我的表单视图in _form.php：

<?php

use yii\helpers\Html;
//use yii\widgets\ActiveForm;
use kartik\widgets\ActiveForm;
use common\models\DataOperations;

/* @var $this yii\web\View */
/* @var $model app\models\Person */
/* @var $contractDate backend\viewModels\DatePart */
/* @var $contractExpirationDate backend\viewModels\DatePart */
/* @var $form yii\widgets\ActiveForm */
?>

<div class="user-form">
    <?php
    $form = kartik\widgets\ActiveForm::begin(
        [
            'id' => $model->isNewRecord ? 'user-form-create' : 'user-form-update',
            'type' => ActiveForm::TYPE_VERTICAL,
            //'enableAjaxValidation' => true,
            'fieldConfig' => [
                //'autoPlaceholder'=>true
            ]
        ]);
    ?>

    <?= $form->field($model, 'name')->textInput(['maxlength' => 60]) ?>  
    <?= $form->field($model, 'family')->textInput(['maxlength' => 60]) ?>
    <?= $form->field($model, 'mobile')->textInput() ?>

    <?= $form->field($contractDate, 'year')->textInput() ?>
    <?= $form->field($contractDate, 'month')->textInput() ?>
    <?= $form->field($contractDate, 'day')->textInput() ?>

    <?= $form->field($contractExpirationDate, 'year')->textInput() ?>
    <?= $form->field($contractExpirationDate, 'month')->textInput() ?>
    <?= $form->field($contractExpirationDate, 'day')->textInput() ?>

    <div class="form-group">
        <?= Html::submitButton($model->isNewRecord ? Yii::t('app', 'Create') : Yii::t('app', 'Update'), ['class' => $model->isNewRecord ? 'btn btn-success' : 'btn btn-primary']) ?>
    </div>

    <?php ActiveForm::end(); ?>  
</div>

它是以下内容的日志结果：**Yii：：info（Yii：：$app-〉request-〉post（），'test'）**在调试器中，因为您只看到最后一个可用的DatePart，但我有两个DatePart模型示例（contractDate和contractExpirationDate）：

[
    '_csrf' => 'Vl81R0ZvMk1hD1oELT9aDzkIe3EPHFgiIBJTBhA9RD8GbFM.AhlVBw==',
    'Person' => [
        'name' => 'test name',
        'family' => 'test family',
        'mobile' => '09121212123',
    ],
    'DatePart' => [
        'year' => '2015',
        'month' => 'Jun',
        'day' => 'Mon',
    ],
]