zxcms/backend/config/main.php

<?php
$params = array_merge(
    require __DIR__ . '/../../common/config/params.php',
    require __DIR__ . '/../../common/config/params-local.php',
    require __DIR__ . '/params.php',
    require __DIR__ . '/params-local.php'
);

return [
    'id' => 'app-backend',
    'language' => 'ru',
    'basePath' => dirname(__DIR__),
    'aliases' => [
	    '@staticRoot' => $params['staticPath'],
	    '@static'   => $params['staticHostInfo'],
    ],
    'controllerNamespace' => 'backend\controllers',
    'bootstrap' => [
	    'log',
	    'common\bootstrap\SetUp',
	    'backend\bootstrap\SetUp',
    ],
    'modules' => [],
    'controllerMap' => [
	    'elfinder' => [
		    'class' => 'mihaildev\elfinder\Controller',
		    'access' => ['@'],
		    'plugin' => [
			    [
				    'class'=>'\mihaildev\elfinder\plugin\Sluggable',
				    'lowercase' => true,
				    'replacement' => '-'
			    ]
		    ],
		    'roots' => [
			    [
				    'baseUrl'=>'@static',
				    'basePath'=>'@staticRoot',
				    'path' => 'files',
				    'name' => 'Global'
			    ],
		    ],
	    ],
    ],
    'components' => [
	    'request' => [
		    'csrfParam' => '_csrf-backend',
		    'cookieValidationKey' => $params['cookieValidationKey'],
	    ],
	    'user' => [
		    'identityClass' => 'common\auth\Identity',
		    'enableAutoLogin' => true,
		    'identityCookie' => [
			    'name' => '_identity',
			    'httpOnly' => true,
			    'domain' => $params['cookieDomain'],
		    ],
		    'loginUrl' => ['auth/login'],
	    ],
	    'session' => [
		    'name' => '_session',
		    'class' => 'yii\web\DbSession',
		    'writeCallback' => function($session){
			    return [
				    'user_id' => Yii::$app->user->id
			    ];
		    },
		    'cookieParams' => [
			    'domain' => $params['cookieDomain'],
			    'httpOnly' => true,
		    ],
	    ],
        'log' => [
            'traceLevel' => YII_DEBUG ? 3 : 0,
            'targets' => [
                [
                    'class' => 'yii\log\FileTarget',
                    'levels' => ['error', 'warning'],
                ],
            ],
        ],
        'errorHandler' => [
            'errorAction' => 'site/error',
        ],
	    'backendUrlManager' => require __DIR__ . '/urlManager.php',
	    'frontendUrlManager' => require __DIR__ . '/../../frontend/config/urlManager.php',
	    'urlManager' => function () {
		    return Yii::$app->get('backendUrlManager');
	    },
	    'i18n' => [
		    'translations' => [
			    'main' => [
				    'class' => 'yii\i18n\PhpMessageSource',
				    'basePath' => '@backend/messages',
			    ],
			    'dashboard' => [
				    'class' => 'yii\i18n\PhpMessageSource',
				    'basePath' => '@backend/messages',
			    ],
			    'page' => [
				    'class' => 'yii\i18n\PhpMessageSource',
				    'basePath' => '@backend/messages',
			    ],
			    'user' => [
				    'class' => 'yii\i18n\PhpMessageSource',
				    'basePath' => '@backend/messages',
			    ],
			    'post' => [
				    'class' => 'yii\i18n\PhpMessageSource',
				    'basePath' => '@backend/messages',
			    ],
			    'buttons' => [
				    'class' => 'yii\i18n\PhpMessageSource',
				    'basePath' => '@backend/messages',
			    ],
			    'slider' => [
				    'class' => 'yii\i18n\PhpMessageSource',
				    'basePath' => '@backend/messages',
			    ],
		    ],
	    ],
    ],
    'params' => $params,
];