helpers.php

<?php
/**
 * Yii2 Shortcuts
 * @author Eugene Terentev <eugene@terentev.net>
 * @author Victor Gonzalez <victor@vgr.cl>
 * -----
 * This file is just an example and a place where you can add your own shortcuts,
 * it doesn't pretend to be a full list of available possibilities
 * -----
 */

 use yii\helpers\ArrayHelper;
 use yii\helpers\Html;

/**
 * @return int|string
 */
function getMyId()
{
    return Yii::$app->user->getId();
}

/**
 * @param string $view
 * @param array $params
 * @return string
 */
function render($view, $params = [])
{
    return Yii::$app->controller->render($view, $params);
}

/**
 * @param $url
 * @param int $statusCode
 * @return \yii\web\Response
 */
function redirect($url, $statusCode = 302)
{
    return Yii::$app->controller->redirect($url, $statusCode);
}

/**
 * @param string $key
 * @param mixed $default
 * @return mixed
 */
function env($key, $default = null)
{
    // getenv is disabled when using createImmutable with Dotenv class
    if (isset($_ENV[$key])) {
        return $_ENV[$key];
    } elseif (isset($_SERVER[$key])) {
        return $_SERVER[$key];
    }

    return $default;
}

/**
 * Renders any data provider summary text.
 *
 * @param \yii\data\DataProviderInterface $dataProvider
 * @param array $options the HTML attributes for the container tag of the summary text
 * @return string the HTML summary text
 */
function getDataProviderSummary($dataProvider, $options = [])
{
    $count = $dataProvider->getCount();
    if ($count <= 0) {
        return '';
    }
    $tag = ArrayHelper::remove($options, 'tag', 'div');
    if (($pagination = $dataProvider->getPagination()) !== false) {
        $totalCount = $dataProvider->getTotalCount();
        $begin = $pagination->getPage() * $pagination->pageSize + 1;
        $end = $begin + $count - 1;
        if ($begin > $end) {
            $begin = $end;
        }
        $page = $pagination->getPage() + 1;
        $pageCount = $pagination->pageCount;
        return Html::tag($tag, Yii::t('yii', 'Showing <b>{begin, number}-{end, number}</b> of <b>{totalCount, number}</b> {totalCount, plural, one{item} other{items}}.', [
                'begin' => $begin,
                'end' => $end,
                'count' => $count,
                'totalCount' => $totalCount,
                'page' => $page,
                'pageCount' => $pageCount,
            ]), $options);
    } else {
        $begin = $page = $pageCount = 1;
        $end = $totalCount = $count;
        return Html::tag($tag, Yii::t('yii', 'Total <b>{count, number}</b> {count, plural, one{item} other{items}}.', [
            'begin' => $begin,
            'end' => $end,
            'count' => $count,
            'totalCount' => $totalCount,
            'page' => $page,
            'pageCount' => $pageCount,
        ]), $options);
    }
}