How to create floating point validation with two decimals in Yii2?

问题

I have tried creating a validation for a field which stores unit price of a product, I come across validation showing how to check for integer, but I can't found one for floating point number something with a format like 2032.95 in YII2. Thanks in advance.

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After Abilay instructions I tried

• [['quantity','round_off'],'number','numberPattern'=>'[-+]?[0-9]*.[0-9]+|[0-9]+'],

but it shows error in console.

回答1:

I think, redefining of numberPattern of NumberValidator class will help in your case.

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If you use AJAX Validator on your form:

1. In Model:
   [['quantity','round_off'], 'number', 'numberPattern' => '/^\d+(.\d{1,2})?$/'],

2. In View:
   Ensure that you enabled AJAX Validation when created form
   $form = ActiveForm::begin([ 'id' => 'my-form', 'enableAjaxValidation' => true, ]);
   and change field to default input
   $form->field($model, 'quantity')

3. In Controller:
   Include files:
   use yii\web\Response; use yii\widgets\ActiveForm;
   Past this code at the beginning of action, after $model is loaded or created
   if (Yii::$app->request->isAjax && $model->load(Yii::$app->request->post())) { Yii::$app->response->format = Response::FORMAT_JSON; return ActiveForm::validate($model); }

来源：https://stackoverflow.com/questions/33123647/how-to-create-floating-point-validation-with-two-decimals-in-yii2