bedezign\yii2\audit\models\AuditTrailSearch::actionFilter PHP Method

    public static function actionFilter()
    {
        return \yii\helpers\ArrayHelper::map(self::find()->select('action')->groupBy('action')->orderBy('action ASC')->all(), 'action', 'action');
    }

<?php

/* @var $panel yii\debug\panels\LogPanel */
/* @var $searchModel yii\debug\models\search\Log */
/* @var $dataProvider yii\data\ArrayDataProvider */
use bedezign\yii2\audit\Audit;
use bedezign\yii2\audit\models\AuditTrailSearch;
use yii\helpers\Html;
use yii\grid\GridView;
echo Html::tag('h1', $panel->name);
echo GridView::widget(['dataProvider' => $dataProvider, 'id' => 'log-panel-detailed-grid', 'options' => ['class' => 'detail-grid-view table-responsive'], 'filterModel' => $searchModel, 'columns' => [['class' => 'yii\\grid\\ActionColumn', 'template' => '{view}', 'buttons' => ['view' => function ($url, $model) {
    return Html::a(Html::tag('span', '', ['class' => 'glyphicon glyphicon-eye-open']), ['trail/view', 'id' => $model->id]);
}], 'options' => ['width' => '30px']], ['attribute' => 'id', 'options' => ['width' => '80px']], ['attribute' => 'user_id', 'label' => Yii::t('audit', 'User ID'), 'class' => 'yii\\grid\\DataColumn', 'value' => function ($data) {
    return Audit::getInstance()->getUserIdentifier($data->user_id);
}, 'options' => ['width' => '150px'], 'format' => 'raw'], ['attribute' => 'action', 'filter' => AuditTrailSearch::actionFilter(), 'options' => ['width' => '150px']], ['attribute' => 'model', 'options' => ['width' => '150px']], ['attribute' => 'model_id', 'options' => ['width' => '80px']], ['attribute' => 'field', 'options' => ['width' => '100px']], ['label' => Yii::t('audit', 'Diff'), 'value' => function ($data) {
    return $data->getDiffHtml();
}, 'format' => 'raw']]]);