我在 YII2 框架中以乘法模式使用 Select2 小部件。"kartik-v/yii2-widget-select2": "@dev" - 这是我通过 composer 下载的。
kartik-v/yii2-widget-select2 dev-master dd09e46
我在小部件初始化('initSelection')上添加了带有 ajax 的初始值。并添加了另一种 ajax 方法来建议用户输入的新值。当用户从列表中选择一个时,它会替换在 init 中添加的初始值。新值替换初始值,但不要另一个新值。我希望将新值添加到初始值而不是替换它。
<?= $form->field($model, 'security[]')->widget(Select2::class, [
'attribute' => 'security',
'hideSearch' => true,
'data'=>$security_data,
'options' => [
'placeholder' => 'Security',
'multiple' => true,
],
'pluginOptions' => [
'allowClear' => true,
'minimumInputLength' => 1,
'ajax' => [
'url' => Url::toRoute([ '/admin/security/select-items' ]),
'dataType' => 'json',
'data' => new JsExpression('function(params) { return {q:params.term}; }'),
'results' => new JsExpression('function(data,page) { return {results:data.results}; }'),
],
'initSelection' => new JsExpression('function(element, callback) { var id = '.Yii::$app->request->getQueryParams()['id'].';if(id !== "") {$.ajax("' . \yii\helpers\Url::toRoute([ '/admin/security/init-items' ]) . '", {data: {id: id},dataType: "json"}).done(function(data) {callback(data.results);});}}'),
],
]); ?>
这是我的api方法:
public function actionSelectItems($q = null){
Yii::$app->response->format = Response::FORMAT_JSON;
$out = ['results' => []];
if(!empty($q)){
$items = Security::find()->where(['like', 'title', $q])->all();
foreach ($items as $item){
$out['results'][] = ['id'=>$item->id, 'text'=>$item->title];
}
}
return $out;
}
public function actionInitItems($id = null){
Yii::$app->response->format = Response::FORMAT_JSON;
$adv = Adv::findOne($id);
$security = @json_decode($adv->security, true);
$out = ['results' => []];
foreach ($security as $item){
$text = Security::findOne($item)->title;
$out['results'][] = ['id'=>$item, 'text'=>$text];
}
return $out;
}
处理http结果时是否有某种设置或我错过了什么?