[英]Yii2 Implement client side unique validation for input field
I've one field in my big form ie 我的一个领域是我的大形式,即
<?= $form->field($model, 'name')->textInput(['maxlength' => 255]) ?>
Following is my ActiveForm options configuration: 以下是我的ActiveForm选项配置:
<?php
$form = ActiveForm::begin([
//'id' => 'printerForm',
'enableClientValidation' => true,
'options' => [
'enctype' => 'multipart/form-data',
]
]);
?>
I want to implement client side unique validation for this. 我想为此实现客户端唯一验证。 I'm using unique validator for it but its only working for server side validation.
我正在使用唯一的验证器,但它只用于服务器端验证。
public function rules() {
return [
[['name'], 'unique'],
]
...
other validations
...
};
Other validations working perfectly but unique client side validation is not working. 其他验证工作完美但独特的客户端验证不起作用。
Finally I did it myself by enabling AJAX validation for a single input field and by using isAjax so that the server can handle the AJAX validation requests. 最后,我通过为单个输入字段启用AJAX验证并使用isAjax自行完成,以便服务器可以处理AJAX验证请求。
Following is the code: 以下是代码:
In view: 在视图中:
<?= $form->field($model, 'name',['enableAjaxValidation' => true, 'validateOnChange' => false])->textInput(['maxlength' => 255]) ?>
And in controller: 在控制器中:
if (Yii::$app->request->isAjax && $model->load(Yii::$app->request->post())) {
$nm= $_POST['BusinessProcessProfile']['name'];
$result = Model::find()->select(['name'])->where(['name' => "$nm"])->one();
if ($result) {
Yii::$app->response->format = \yii\web\Response::FORMAT_JSON;
return \yii\widgets\ActiveForm::validate($model, 'name');
} else {
return false;
}
}
It automatically calls validations rules defined in the Model. 它会自动调用模型中定义的验证规则。
For more info please refer : http://www.yiiframework.com/doc-2.0/guide-input-validation.html#client-side-validation 欲了解更多信息,请参阅: http : //www.yiiframework.com/doc-2.0/guide-input-validation.html#client-side-validation
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