Config mailer parameters from model - Yii2 - php

Question

im using Yii2 and i want to config mailer parameters geting the data from db.
Example:
'mailer' => [
'class' => 'yii\swiftmailer\Mailer',
'enableSwiftMailerLogging' =>true,
'useFileTransport' => false,
'transport' => [
'class' => 'Swift_SmtpTransport',
'host' => $model->getSmtpHost(),
'username' => $model->getSmtpUser(),
'password' => $model->getSmtpPass(),
'port' => $model->getSmtpPort(),
'encryption' => $model->getSmtpEncryption(),
],
]
but from web.php can't call methods from models, i tried but throws a error

Answer 1

Yii initialized application from this config. You can't use yii2 before yii2 is runned.
$application = new yii\web\Application($config);
As alternative you can configure mailer after create application in bootstrap.php file like this: Yii::$app->set('mailer', (new MailerConfigurator())->getConfig());

Answer 2

thanks to #Onedev.Link and #arogachev for his answer.that gave me an idea and i solve the problem.
i solve the problem modyfing swiftmailer component, in Mailer.php added this:
use app\models\Administracion; //The model i needed for access bd
class Mailer extends BaseMailer
{
...
...
//this parameter is for the config (web.php)
public $CustomMailerConfig = false;
...
...
...
/**
* Creates Swift mailer instance.
* #return \Swift_Mailer mailer instance.
*/
protected function createSwiftMailer()
{
if ($this->CustomMailerConfig) {
$model = new Administracion();
$this->setTransport([
'class' => 'Swift_SmtpTransport',
'host' => $model->getSmtpHost(),
'username' => $model->getSmtpUser(),
'password' => $model->getSmtpPass(),
'port' => $model->getSmtpPort(),
'encryption' => $model->getSmtpEncryption(),
]);
}
return \Swift_Mailer::newInstance($this->getTransport());
}
And in Web.php added this:
'mailer' => [
'class' => 'yii\swiftmailer\Mailer',
'enableSwiftMailerLogging' =>true,
'CustomMailerConfig' => true, //if its true use the bd config else set the transport here
'useFileTransport' => false,
],