How to write a link?

Question

Yii

['label' => 'About', 'url' => ['/site/about']]
how to write here to go from frontend to backend ????

Answer 1

frontend and backend are separate app. And the url manager of one app is unaware of the existence of the second. Therefore, you need to make another urlManager in the frontend config, which will know about the backend. And use it when generating links.
For example:

//это стандарный 
        'urlManager' => [
            'class' => 'yii\web\urlManager',
            'enablePrettyUrl' => true,
            'showScriptName' => false,
            'rules' => [],
        ],
//это второй 
        'urlManagerBack' => [
            'class' => 'yii\web\urlManager',
            'baseUrl' => 'http://mybackenddomain.com',
            'enablePrettyUrl' => true,
            'showScriptName' => false,
            'rules' => require(__DIR__ . '/../../backend/config/routes.php'), //тут путь к файлу с rules для backend
        ],

And create a link like this:

Yii::$app->urlManagerBack->createAbsoluteUrl('/'); //ссылка на главную
Yii::$app->urlManagerBack->createUrl(['site/about']); //Ваш пример

Answer 2

front end

<?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-frontend',
    'basePath' => dirname(__DIR__),
    'bootstrap' => ['log'],
    'controllerNamespace' => 'frontend\controllers',
    'components' => [


        'urlManagerBack' => [

            'class' => 'yii\web\UrlManager',
            'baseUrl' => 'localhost/fashion-house',
            'enablePrettyUrl' => true,
            'showScriptName' => false,
            'rules' => require(__DIR__ . '/../../backend/config/main.php'), //тут путь к файлу с rules для backend

        ],


        'user' => [
            'identityClass' => 'common\models\User',
            'enableAutoLogin' => true,
        ],
        'log' => [
            'traceLevel' => YII_DEBUG ? 3 : 0,
            'targets' => [
                [
                    'class' => 'yii\log\FileTarget',
                    'levels' => ['error', 'warning'],
                ],
            ],
        ],
        'errorHandler' => [
            'errorAction' => 'site/error',
        ],

        'urlManager' => [
            'class' => 'yii\web\UrlManager',
            'enablePrettyUrl' => true,
            'showScriptName' => false,
            'rules' => [


            ],
        ],



    ],



    'params' => $params,
];

backend

<?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',
    'basePath' => dirname(__DIR__),
    'controllerNamespace' => 'backend\controllers',
    'bootstrap' => ['log'],
    'modules' => [],
    'components' => [
        'user' => [
            'identityClass' => 'common\models\User',
            'enableAutoLogin' => true,
        ],
        'log' => [
            'traceLevel' => YII_DEBUG ? 3 : 0,
            'targets' => [
                [
                    'class' => 'yii\log\FileTarget',
                    'levels' => ['error', 'warning'],
                ],
            ],
        ],
        'errorHandler' => [
            'errorAction' => 'site/error',
        ],
        
        'urlManager' => [
            'enablePrettyUrl' => true,
            'showScriptName' => false,
            'rules' => [
            ],
        ],
        
    ],
    'params' => $params,
];