Yii2 - 动态模型验证

Question

我有一个表单，我想根据在特定选择输入中选择的值更改我的 DynamicModel 规则验证。我读过this doc，但我不明白为什么我的代码不起作用。我试过以下没有结果：

我的控制器

private function createFormModel(){
    
    $model = new DynamicModel([
        'indicador',
        'mes'
    ]);
   
    $model->addRule(['indicador'], 'required',['message' => 'This field is required']);
    $model->addRule(['mes'], 'string');
    $model->addRule(
        'mes',
        function ($attribute, $params, $validator) use ($model) {
            if ($model->indicador == 'semana') {
                $model->addError('mes', 'This field is required');
            }
        }
    ); 
    
    return $model;
}

我的视图

<?php $form = ActiveForm::begin(); ?>         

<!-- indicador -->  
<div class="form-group">
    <?=  $form->field($model, 'indicador')->widget(Select2::class, [
        'options' => ['id'=>'indicador'],
        'data' => [
            'dia' => 'Actividad por Día',
            'semana' => 'Actividad por Semana',
            'resumen' => 'Resumen de actividad'
        ],
        'pluginOptions' => [ 
            'placeholder'=>'Seleccionar indicador',
            'allowClear' => true 
            ],          
    ]); ?>    
</div>
<!-- /.indicador -->               

<!-- mes -->
<div id = "semana" class="form-group hidden">
    <?= $form->field($model, 'mes')->widget(DepDrop::class, [
        'type' => DepDrop::TYPE_SELECT2,
        'options' => ['id' => 'mes'],
        'select2Options' => ['pluginOptions' => ['allowClear' => true]],
        'pluginOptions' => [
            'depends' => ['indicador'],
            'placeholder'=>'Seleccionar mes',
            'url' => Url::to(['/campus/subindicador']),
            'loadingText' => 'Cargando ...',
            'initialize' => true,
        ]
    ]);?>  
</div>
<!-- /.mes -->    

<?= Html::submitButton('Aplicar filtros', ['class' => 'btn btn-block btn-default']) ?>

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

Answer 1

您需要将when 与所需的验证器一起使用。

$model = new DynamicModel(['indicador', 'mes']);
$model->addRule(['indicador'], 'required', ['message' => 'This field is required']);
$model->addRule(['mes'], 'string');
$model->addRule(['mes'], 'required', ['when' => function ($dModel) {
    return $dModel->indicador == 'semana';
}, 'message' => 'This field is required']);