on a module I have add a component named db where i put, like the main Yii component, the data for database connection, I need in my module use everytime the db specified in his configuration for all models and not the main database connection, how I can do this?
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问题:
回答1:
You have several way eg. using a separated configuration in app/config/main.php eg adding a specific dbMyMod to component config
return [
// ...
'components' => [
// ...
'db' => [
'class' => 'yii\db\Connection',
'dsn' => 'mysql:host=localhost;dbname=example',
'username' => 'root',
'password' => '',
'charset' => 'utf8',
],
'dbMyMod ' => [
'class' => 'yii\db\Connection',
'dsn' => 'mysql:host=hostForMudle;dbname=module_db_name',
'username' => 'user_module_name',
'password' => 'password',
'charset' => 'utf8',
],
],
or one way that not require a static configuration in app/confing
could be based on a module function that return a proper db connection
public function myModuleDbCon()
{
$myDbCon = new yii\db\Connection([
'dsn' => 'mysql:host=localhost;dbname=example',
'username' => 'root',
'password' => '',
'charset' => 'utf8',
]);
return myDbConn;
}
then in you module you can retrive the module db connection
aDbConn = Yii::$app->getModule('my_module_name')->myModuleClass->myModuleDbCon();
.
$command = $aDbConn->createCommand('SELECT * FROM myTable');
$result= $command->queryAll();