php - 如何解决依赖下拉列表的错误？

问题描述

Dependent DropdownList 工作得特别好。但是当我单击下拉菜单时，我看不到选项列表

我已经阅读了所有论坛，但我找不到像我这样的问题

索引.php

$a = [
    'Qoraqalpog‘iston Respublikasi' => 'Qoraqalpog‘iston Respublikasi',
    'Andijon viloyati' =>   'Andijon viloyati',
    'Buxoro viloyati' =>  'Buxoro viloyati',
    'Jizzax viloyati' =>   'Jizzax viloyati',
    'Qashqadaryo viloyati' => 'Qashqadaryo viloyati',
    'Navoiy viloyati' =>   'Navoiy viloyati',
    'Namangan viloyati' =>   'Namangan viloyati',
    'Samarqand viloyati' =>   'Samarqand viloyati',
    'Sirdaryo viloyati' =>   'Sirdaryo viloyati',
    'Surxondaryo viloyati' =>   'Surxondaryo viloyati',
    'Toshkent viloyati' =>   'Toshkent viloyati',
    'Farg‘ona viloyati' =>   'Farg‘ona viloyati',
    'Xorazm viloyati' => 'Xorazm viloyati',
    'Toshkent shahri' => 'Toshkent shahri',
];
<?php $f = ActiveForm::begin([
                        'fieldConfig' => ['options' => ['class' => 'input-field']],
                        'enableAjaxValidation' => false,
                        'enableClientValidation'=>true,

                        'options' => [
                            'enctype' => 'multipart/form-data',
                            // 'onSubmit'=> 'return false'
                        ]
                    ])?>
                    <?= $f->field($contact,'name_of')->label(Yii::t('template','Ta\'lim muassasasi nomi yoki raqami*'))->error(false)?>
                    <?= $f->field($contact, 'city' ,['options' => ['class' => 'input-field']])->error(false)->label(Yii::t('template',"Ta'lim muassasasi joylashgan hudud*"))
                        ->dropDownList(
                            $a,
                            [
                                'prompt'=>Yii::t('template','Hududni tanlang'),
                                'onchange'=> '
                                $.post( "'.Yii::$app->urlManager->createUrl('site/regions?id=').'"+$(this).val(), function( data ) {
                                  $( "select#contactform-region" ).html( data );
                                });
                                               '
                            ]

                        );?>

                    <?= $f->field($contact,'region')->error(false)->dropDownList(
                            $empty,
                        [
                        ]);?>

动作区域（）

public function actionRegions($id){
  $posts = Regions::find()
            ->where(['idCity' => $id])
            ->all();
        $count = Regions::find()
            ->where(['idCity' => $id])
            ->count();
        $lang = Yii::$app->language;
        if ($count>0){
            foreach($posts as $post) {
                echo "<option value='".$post->id."'>".$post->{"name_".$lang}."</option>";
            }
        } else {
            echo "<option>-</option>";
        }

    }

这是空的 https://imgur.com/a/IDso2oQ 点击下拉菜单没有发生任何事情 https://imgur.com/a/wh4ZFd9

标签： phpyii2dropdown

php - 如何解决依赖下拉列表的错误？

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