yii2在下拉列表中插入2个参数作为文本

Here is yii2 drop down list.

这是yii2下拉列表。

 <?php  echo $form->field($model, 'param1')->dropDownList(
            ArrayHelper::map(Model::find()->all(),'param1','param2');

It makes drop Down list with values of param1s and text to choose from of param2s. So you see param2 texts , choose one and corresponding param1 value goes to server.

它使下拉列表具有param1的值和可从param2s中选择的文本。所以你看到param2文本,选择一个,相应的param1值转到服务器。

No my problem is that I want to do the same but show user not only param2 text but I want text to be constructed from param2+param3.

没有我的问题是我想做同样的但不仅向用户显示param2文本,但我希望从param2 + param3构造文本。

example of what I want.

我想要的例子。

hidden value___________text

1_____________________alpha

2_____________________bravo

3_____________________lima

hidden value___________text

1_____________________alpha-red

2_____________________bravo-white

3_____________________lima-blue

Is that possible ?

那可能吗 ?

1 个解决方案

#1

One of the ways to do it will be using built-in ArrayHelper with toArray() method.

其中一种方法是使用内置的ArrayHelper和toArray()方法。

Put this in your model:

把它放在你的模型中:

use yii\helpers\ArrayHelper;

...

public static function getList()
{
    $initialModels = static::find()->all();
    $models = ArrayHelper::toArray($initialModels, [
        'app\models\YourModel' => [
            'param1',
            'combinedParam' => function ($model) {
                return "$model->param2 - $model->param3";
            },
        ],
    ]);

    return ArrayHelper::map($models, 'param1', 'combinedParam');
}

Displaying it in view:

在视图中显示它:

<?= $form->field($model, 'param1')->dropDownList(YourModel::getList()) ?>

#1