yii2:在一行中连接多个值的下拉列表
对于我的下拉列表，我正在使用此代码.
for my drop-down list I am using this code.
<?= $form->field($medicinerequest, '[' . $id . ']' . 'medicine_name')
->DropDownList(ArrayHelper::map(appmodelsMedicine::find()
->asArray()->all(), 'id', 'medicine_name','medicine_id' ),
[ 'prompt' => 'Please Select' ])?>
我正在获取如图所示的下拉列表.但我希望它在一行中由连字符 (-) 连接起来.我该怎么做?
I am getting the drop-down list as in the picture. But I want it to be concatenated by hyphen(-) in one line. How can I do this?
推荐答案
ArrayHelper::map($array, $from, $to, $group) 使用 ArrayHelper::getValue() 获取$from、$to 和 $group.ArrayHelper::getValue() 允许你传递闭包.
ArrayHelper::map($array, $from, $to, $group) uses ArrayHelper::getValue() to obtain the values of $from, $to and $group. ArrayHelper::getValue() allows you to pass closures.
匿名函数签名应该是:function($array, $defaultValue).
The anonymous function signature should be:
function($array, $defaultValue).
因此您可以将 $to 设置为
As such you can set $to as
ArrayHelper::map(
appmodelsMedicine::find()->asArray()->all(),
'id',
function($model) {
return $model['medicine_name'].'-'.$model['medicine_id'];
}
)
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