Yii2 依赖自定义规则验证 [英] Yii2 dependency custom rule validation

问题描述

我有两个输入字段考虑 A 和 B，现在我想验证用户可以输入至少一个字段是 A> 或 B 字段.

I have two input fields consider A and B, now i want to validate that user can input at least one field that is either A or B field.

有没有办法创建规则条件?

Is there a way to create a rule condition?

推荐答案

在规则中添加这样的内容

Add like this in rules

public function rules()
{
    return [

        [['field_A'],'required','when' => function($model) {

            return $model->field_B == NULL;

        }, 'message' => 'Either field_A or field_B is required.'],

        [['field_B'],'required','when' => function($model) {

            return $model->field_A == NULL;

        }, 'message' => 'Either field_A or field_B is required.'],

}

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