目前,我有一个表单域用于基于Kartik的Select2呈现带选项组的静态下拉菜单。使用以下数据填充数据:Yii2:如何使用基于AJAX的选项组Kartik的Select2
public function getBibliographyList()
{
return ArrayHelper::map($this->find()->select(['id','title','author'])
->orderBy('author','title')->all(), 'id', 'title', 'author');
}
使标题显示在其各自的作者选项组下。
现在我要以改革的形式采取从AJAX的优势,所以我采取了例如在Krajee Demo Site for Select2和重新整理如下:
------查看--------- -
<?= $form->field($model, 'orig_id')->widget(Select2::classname(), [
'options' => ['placeholder' => Yii::t('app', 'Select a title...)],
'pluginOptions' => [
'allowClear' => true,
'minimumInputLength' => 3,
'language' => Yii::$app->language,
'theme' => 'krajee',
'ajax' => [
'url' => \yii\helpers\Url::to(['search-doc']),
'dataType' => 'json',
'data' => new JsExpression('function (params) { return {q:params.term}; }'),
],
'errorLoading' => new JsExpression("function() { return '".Yii::t('app', 'Waiting for data...')."'; }"),
'escapeMarkup' => new JsExpression("function (markup) { return markup; }"),
'templateResult' => new JsExpression("function (bibliography) { return bibliography.title; }"),
'templateSelection' => new JsExpression("function (bibliography) { return bibliography.title; }"),
],
]) ?>
--------控制器-------------
public function actionSearchDoc($q = null)
{
Yii::$app->response->format = \yii\web\Response::FORMAT_JSON;
$out = ['id' => '', 'title' => '', 'author' => ''];
if ($q) {
$query = new yii\db\Query;
$query->select('id, title, author')
->from('bibliography')
->where(['like', 'title', $q])
->orWhere(['like', 'author', $q])
->limit(50);
$command = $query->createCommand();
$data = $command->queryAll();
$out = array_values($data);
}
return \yii\helpers\ArrayHelper::map($out, 'id', 'title', 'author');
}
按卡尔蒂克的选择二docs,ArrayHelper ::地图是这样的当optgroups在附近时,但我无法fi由此产生的下拉总是空的。以下是来自ArrayHelper :: map的示例JSON字符串:
{"results":{"Author1":{"4":"DocumentFoo1","121":"DocumentFoo2","219":"DocumentFoo3","197":"DocumentFoo4","198":"DocumentFoo5","2":"DocumentFoo6","273":"DocumentFoo7"},"Author2":{"68":"DocumentThee1"}}}
任何想法?
请问您可以添加错误信息吗? – marche
mmmm,我在ArrayHelper行的开头遗漏了一个反斜杠,因此出现这个错误。无论如何,映射optgroups的问题依然存在。我会继续尝试,直到我可以发布适当的解决方案。 –