How to add dependency injection?

[bubooon]

Hi, I have two questions. 1) I trying to add yii2-swoole to my yii2 project. But I saw that you hide Yii::$container interface, and now I can't do injection before app will run, how i can do it? 2) When i did request for app, i got an error that a MySql connection is not established. Logs below:

2019-05-31 18:14:59 [127.0.0.1][-][-][error][yii\base\ErrorException:2] yii\base\ErrorException: Swoole\Coroutine\MySQL::query(): The MySQL connection is not established in /var/www/gostandup/vendor/tsingsun/yii2-swoole/src/db/mysql/PDO.php:146
Stack trace:
#0 [internal function]: tsingsun\swoole\web\ErrorHandler->handleError(2, 'Swoole\\Coroutin...', '/var/www/gostan...', 146, Array)
#1 /var/www/gostandup/vendor/tsingsun/yii2-swoole/src/db/mysql/PDO.php(146): Swoole\Coroutine\MySQL->query('SET NAMES 'utf8...')
#2 /var/www/gostandup/vendor/yiisoft/yii2/db/Connection.php(704): tsingsun\swoole\db\mysql\PDO->exec('SET NAMES 'utf8...')
#3 /var/www/gostandup/vendor/tsingsun/yii2-swoole/src/db/Connection.php(128): yii\db\Connection->initConnection()
#4 /var/www/gostandup/vendor/yiisoft/yii2/db/Connection.php(996): tsingsun\swoole\db\Connection->open()
#5 /var/www/gostandup/vendor/yiisoft/yii2/db/Connection.php(983): yii\db\Connection->getMasterPdo()
#6 /var/www/gostandup/vendor/tsingsun/yii2-swoole/src/db/Command.php(212): yii\db\Connection->getSlavePdo()
#7 /var/www/gostandup/vendor/tsingsun/yii2-swoole/src/db/Command.php(261): tsingsun\swoole\db\Command->prepare(true)
#8 /var/www/gostandup/vendor/yiisoft/yii2/db/Command.php(399): tsingsun\swoole\db\Command->queryInternal('fetchAll', NULL)
#9 /var/www/gostandup/vendor/yiisoft/yii2/db/mysql/Schema.php(312): yii\db\Command->queryAll()
#10 /var/www/gostandup/vendor/yiisoft/yii2/db/mysql/Schema.php(125): yii\db\mysql\Schema->findColumns(Object(yii\db\TableSchema))
#11 /var/www/gostandup/vendor/yiisoft/yii2/db/Schema.php(744): yii\db\mysql\Schema->loadTableSchema('gs_cities')
#12 /var/www/gostandup/vendor/yiisoft/yii2/db/Schema.php(194): yii\db\Schema->getTableMetadata('gs_cities', 'schema', false)
#13 /var/www/gostandup/vendor/yiisoft/yii2/db/ActiveRecord.php(384): yii\db\Schema->getTableSchema('gs_cities')
#14 /var/www/gostandup/vendor/yiisoft/yii2/db/ActiveRecord.php(408): yii\db\ActiveRecord::getTableSchema()
#15 /var/www/gostandup/vendor/yiisoft/yii2/db/ActiveRecord.php(178): yii\db\ActiveRecord::primaryKey()
#16 /var/www/gostandup/vendor/yiisoft/yii2/db/BaseActiveRecord.php(112): yii\db\ActiveRecord::findByCondition(373)
#17 /var/www/gostandup/controllers/SiteController.php(196): yii\db\BaseActiveRecord::findOne(373)
#18 [internal function]: app\controllers\SiteController->actionIndex(NULL)
#19 /var/www/gostandup/vendor/yiisoft/yii2/base/InlineAction.php(57): call_user_func_array(Array, Array)
#20 /var/www/gostandup/vendor/yiisoft/yii2/base/Controller.php(157): yii\base\InlineAction->runWithParams(Array)
#21 /var/www/gostandup/vendor/yiisoft/yii2/base/Module.php(528): yii\base\Controller->runAction('', Array)
#22 /var/www/gostandup/vendor/yiisoft/yii2/web/Application.php(103): yii\base\Module->runAction('', Array)
#23 /var/www/gostandup/vendor/tsingsun/yii2-swoole/src/bootstrap/WebApp.php(45): yii\web\Application->handleRequest(Object(tsingsun\swoole\web\Request))
#24 /var/www/gostandup/vendor/tsingsun/yii2-swoole/src/bootstrap/BaseBootstrap.php(124): tsingsun\swoole\bootstrap\WebApp->handleRequest(Object(Swoole\Http\Request), Object(Swoole\Http\Response))
#25 /var/www/gostandup/vendor/tsingsun/yii2-swoole/src/server/HttpServer.php(40): tsingsun\swoole\bootstrap\BaseBootstrap->onRequest(Object(Swoole\Http\Request), Object(Swoole\Http\Response))
#26 {main}

I can't understand why, because simple example like this works fine:

    $mysql = new Swoole\Coroutine\MySQL();
    $server = array(
        'host' => 'mysql',
        'port' => 3306,
        'user' => 'root',
        'password' => 'pw',
        'database' => 'dbname',
    );
    $mysql->connect($server);

    $result = $mysql->prepare('SELECT * FROM `gs_users` LIMIT 1' );
    if ($result == false)
    {
        var_dump($mysql->errno, $mysql->error);
    }
    else
    {
        $ret2 = $result->execute();
        var_dump($ret2);
    }
});```

[tsingsun]

What is your PHP version and SWOOLE version

[bubooon]

What is your PHP version and SWOOLE version

PHP 7.3 Swoole 4.3.4

[tsingsun]

i try Swoole 4.3.4 and it's ok, please check yii2 db config,whether as same as

$server = array(
        'host' => 'mysql',
        'port' => 3306,
        'user' => 'root',
        'password' => 'pw',
        'database' => 'dbname',
    );

[bubooon]

i try Swoole 4.3.4 and it's ok, please check yii2 db config,whether as same as

$server = array(
        'host' => 'mysql',
        'port' => 3306,
        'user' => 'root',
        'password' => 'pw',
        'database' => 'dbname',
    );

Be sure, I checked it many times(

[tsingsun]

i saw mysql host name is 'mysql', can retry instead of ip. BTW, what's your method to do injection in native YII2.

[bubooon]

i saw mysql host name is 'mysql', can retry instead of ip. BTW, what's your method to do injection in native YII2.

My host is "mysql" because my project inside docker and mysql is another service from docker-compose.

In my Yii2 project without swoole I added after included Yii.php:

require(__DIR__ . '/components/dependency/gsDependencies.php');

This file contains code like this:

Yii::$container->set('yii\web\User', 'gscomponents\gsWebUser');
Yii::$classMap['yii\web\View'] = __DIR__.'/gsView.php';

And now with swoole i can't rewrite behaviour of default User class or View etc.

[tsingsun]

add to swoole server start script like

Server::run($config, function (Server $server) {
    $starter = new \tsingsun\swoole\bootstrap\WebApp($server);
    $starter->init = function (\tsingsun\swoole\bootstrap\BaseBootstrap $bootstrap) {
        require(__DIR__ . '/yii2-app-basic/vendor/tsingsun/yii2-swoole/src/Yii.php');
        //additional script
       require(__DIR__ . '/components/dependency/gsDependencies.php');

        Yii::setAlias('@webroot', WEBROOT);
        Yii::setAlias('@web', '/');
        Yii::$swooleServer = $bootstrap->getServer()->getSwoole();
        $bootstrap->appConfig = $config;

    };
}