Yii2:如何将新变量从视图发送到控制器? [英] Yii2: How to send new variable from view to controller?

问题描述

我有一个名为 persons 的表，其中包含 id 和 name 字段.

I have a table called persons with id and name fields.

我有一个 create.php 视图，该视图加载了名为 Persons 的模型，现在我想添加一个名为 hasCar 的复选框以显示是否一个人有车(这是布尔条件).

I have a create.php view that loads the model called Persons and now I want to add a checkbox called hasCar to show if a person has a car (so it is a boolean condition).

然后，我具有发送按钮，该按钮会将表单的 $ model 数组发送到控制器，因此我需要添加具有 $ model 数组的> hasCar 变量.

Then I have the send button that send the $model array of the form to the controller so I need to add the hasCar variable to $model array.

但是该复选框不是 persons 表的一列，因此出现了一些错误，因为它不是模型的一部分.

But the checkbox is not a column of the persons table so I got some errors because it is not part of the model.

我以这种方式添加了该复选框，但是它当然不起作用.

I added the checkbox in this way but it is not working, of course.

<?= $form->field($model, 'hasCar')->checkbox(); ?>

是否可以在 $ model 数组中发送 hasCar 变量?我的意思是，当按下发送按钮时，如何将 hasCar 变量发送到控制器?

Is it possible to send the hasCar variable inside the $model array? I mean, how can I send the hasCar variable to the controller when the send button is pressed?

推荐答案

您不能将变量传递给与数据库表关联的$ model对象轨道，这是正确的.您需要通过请求方法(GET，POST)将变量传递给控制器​​.

You can't pass the variable to the $model object orbit is affiliated with a db table, you are right about this. You need to pass the variable to the controller via a request method (GET, POST).

尝试:

Yii::$app->request->post()

用于POST和:

Yii::$app->request->get()

对于GET.

还要在表单上将复选框添加为HTML类组件.

Also on the form add the checkbox as an HTML class component.

示例:

控制器:

...
$hasCar = Yii::$app->request->post('hasCar');
....

查看:

...
// We use ActiveFormJS here
$this->registerJs(
    $('#my-form').on('beforeSubmit', function (e) {
        if (typeof $('#hasCar-checkbox').prop('value') !== 'undefined') {
            return false; // false to cancel submit
        }
    return true; // true to continue submit
});
$this::POS_READY,
'form-before-submit-handler'
);
...
<?= HTML::checkbox('hasCar', false, ['id' => 'hasCar-checkbox', 'class' => 'form-control']) ?>
...

有关ActiveFormJS的更多信息: 在此处输入链接描述

More on ActiveFormJS: enter link description here

我希望这个答案能对您有所帮助.

I hope this answer covered you.

达米安

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