在我的表格中,我一次更新了同一模型的更多开始和结束日期。见简化形式:
<?php $form = ActiveForm::begin(); ?>
<?php foreach($dates as $i=>$date): ?>
<?= $form->field($date,"[$i]start"); ?>
<?= $form->field($date,"[$i]end"); ?>
<?php endforeach; ?>
</table>
<?= Html::submitButton('Save'); ?>
<?php ActiveForm::end(); ?>
在我需要控制的模型中,如果结束日期在开始日期之后:
public function rules() {
return [
[['end'], 'compare', 'compareAttribute' => 'start', 'operator' => '>', 'message' => '{attribute} have to be after {compareValue}.'],
];
}
我尝试更改选择器,如:Yii2: Validation in form with two instances of same model中所述,但我没有成功。我想我需要在验证 JS 中将 'compareAttribute' 从 'mymodel-start' 更改为 'mymodel- 0 -start':
{yii.validation.compare(value, messages, {"operator":">","type":"string","compareAttribute":"mymodel-start","skipOnEmpty":1,"message":"End have to be after start."});}
所以,我寻找类似的东西:
$form->field($date,"[$i]end", [
'selectors' => [
'compareAttribute' => 'mymodel-'.$i.'-start'
]
])
解决方案
该解决方案基于lucas的答案。
在模型中,我重写了 formName() 方法,因此对于每个日期,我都有一个唯一的表单名称(基于现有日期的 ID 和基于新日期的随机数):
use ReflectionClass;
...
public $randomNumber;
public function formName()
{
$this->randomNumber = $this->randomNumber ? $this->randomNumber : rand();
$number = $this->id ? $this->id : '0' . $this->randomNumber;
$reflector = new ReflectionClass($this);
return $reflector->getShortName() . '-' . $number;
}
然后表格如下所示:
<?php $form = ActiveForm::begin(); ?>
<?php foreach($dates as $date): ?>
<?= $form->field($date,"start"); ?>
<?= $form->field($date,"end"); ?>
<?php endforeach; ?>
</table>
<?= Html::submitButton('Save'); ?>
<?php ActiveForm::end(); ?>