I have following in the configuration of a Zend project
'db' => array(
'driver' => 'Pdo',
'dsn' => 'mysql:dbname=food;host=localhost',
'username' => 'root',
'password' => '',
'driver_options' => array(
PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES \'UTF8\''
)
),
'service_manager' => array(
'factories' => array(
'Zend\Db\Adapter\Adapter'
=> 'Zend\Db\Adapter\AdapterServiceFactory',
),
),
I am trying to get DB adapter
($adapter = $adapter = $this->getServiceLocator()->get('Zend\Db\Adapter\Adapter');
( $adapter = $this->getServiceLocator()->get('Zend\Db\Adapter\Adapter');
in a controller but is always stuck with.
class: "Zend\ServiceManager\Exception\ServiceNotCreatedException"
file:
" /path/vendor/zendframework/zendframework/library/Zend/ServiceManager/ServiceManager.php"
line: 909 message: "An exception was raised while creating
"Zend\Db\Adapter\Adapter"; no instance returned"
An exception was raised while creating "Zend\Db\Adapter\Adapter"; no instance returned
This could be your problem. The __construct method can throw an InvalidArgumentException(docs).
You should try to create an instance of Zend\Db\Adapter\Adapter on your own and see if an exception is thrown.
Related
I am new to mongodb. I am working on Zend framework. My zend application is currently connected to mysql. I want to connect it with mongodb. I have successfully created a mongodb database and a collection. Now I need to link it with my application? Any help will be appreciated.
/*return array(
'db' => array(
'driver' => 'Pdo',
'dsn' => 'mysql:dbname=zf2;host=localhost',
'driver_options' => array(
PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES \'UTF8\''
),
),
'service_manager' => array(
'factories' => array(
'Zend\Db\Adapter\Adapter'
=> 'Zend\Db\Adapter\AdapterServiceFactory',
),
),
);
*/
use Mongo;
use Zend\Session\SaveHandler\MongoDB;
use Zend\Session\SaveHandler\MongoDBOptions;
use Zend\Session\SessionManager;
$mongo = new Mongo();
$options = new MongoDBOptions(array(
'database' => 'posts',
'collection' => 'posts',
));
$saveHandler = new MongoDB($mongo, $options);
$manager = new SessionManager();
$manager->setSaveHandler($saveHandler);
While creating a mongo client in your app, provide the hostname and port.
That's all you need to connect to mongo :)
I am trying to integrate DoctrineExtension-Taggable into Zend Framework 2.
First I added to composer:
"anh/doctrine-extensions-taggable": "1.1.*#dev"
Then built instances via service manager (in module.config.php):
'service_manager' => array(
'factories' => array(
'taggableManager' => function($sm) {
$entityManager = $sm->get('Doctrine\ORM\EntityManager');
return new \Anh\Taggable\TaggableManager($entityManager, '\Anh\Taggable\Entity\Tag', '\Anh\Taggable\Entity\Tagging');
},
'taggableSubscriber' => function($sm) {
$taggableManager = $sm->get('taggableManager');
return new \Anh\Taggable\TaggableSubscriber($taggableManager);
},
),
),
Once instances created I registered subscriber in EventManager:
'doctrine' => array(
'driver' => array(
// standart code for driver initialization
),
'eventmanager' => array(
'orm_default' => array(
'subscribers' => array(
'taggableSubscriber',
),
),
),
),
This is all what I did. But at this step I have an error
Fatal error: Uncaught exception
'Zend\ServiceManager\Exception\CircularDependencyFoundException' with
message 'Circular dependency for LazyServiceLoader was found for
instance Doctrine\ORM\EntityManager' in
/var/www/html/fryday/vendor/zendframework/zendframework/library/Zend/ServiceManager/ServiceManager.php
on line 946
What I am doing wrong?
Today I bought a book to learn the Zend Framework 2. Having started with the skeleton Application & skeleton module, I made good progress, until database interaction started. Now every time I want to do something with the database, I get the following exception:
Zend\ServiceManager\Exception\ServiceNotFoundException
File: /Applications/AMPPS/www/myproject/ZendSkeletonApplication/vendor/zendframework/zendframework/library/Zend/ServiceManager/ServiceManager.php:529
Message:
Zend\ServiceManager\ServiceManager::get was unable to fetch or create an instance for Zend\Db\Adapter\Adapter
Possible reasons for this could be incorrect database details, but having used the same credentials for other projects, I know they are correct (local development).
My global.php looks like this – I can't see any errors:
return array(
'db' => array(
'driver' => 'Pdo',
'dsn' => 'mysql:dbname=mydatabasename;host=localhost',
'username' => 'root',
'password' => 'mysql',
'driver_options' => array(
PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES \'UTF8\''
),
'service_manager' => array(
'factories' => array(
'Zend\Db\Adapter\Adapter' => 'Zend\Db\Adapter\AdapterServiceFactory'
),
),
)
);
Following the stacktrace, the error must be in the beginning of this method:
protected function createUser(array $data)
{
$sm = $this->getServiceLocator();
$dbAdapter = $sm->get('Zend\Db\Adapter\Adapter');
$resultSetPrototype = new \Zend\Db\ResultSet\ResultSet();
$resultSetPrototype->setArrayObjectPrototype(new \Users\Model\User);
$tableGateway = new \Zend\Db\TableGateway\TableGateway('user', $dbAdapter, null, $resultSetPrototype);
$user = new User();
$user->exchangeArray($data);
$userTable = new UserTable($tableGateway);
$userTable->saveUser($user);
return true;
}
But again, I can't see any error here, which leaves me a bit puzzled. I guess the error is more than just a typo.
The class that method is located in uses the following Zend Framework 2 components (besides self written ones):
use Zend\Mvc\Controller\AbstractActionController;
use Zend\View\Model\ViewModel;
Do I need to add something here, maybe to be able to use the getServiceLocator() method? I don't know there that method is located.
Do you have anymore ideas what could cause this exception? I am using Zend Framework 2.3.2
You have put the service_manager key as a subset to db. This is wrong.
The service_manager key needs to be top level.
return array(
'db' => array(
'driver' => 'Pdo',
'dsn' => 'mysql:dbname=mydatabasename;host=localhost',
'username' => 'root',
'password' => 'mysql',
'driver_options' => array(
PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES \'UTF8\''
),
),
'service_manager' => array(
'factories' => array(
'Zend\Db\Adapter\Adapter' => 'Zend\Db\Adapter\AdapterServiceFactory'
)
)
);
I'm trying to create a ZF2 application with multiple databases. Based on a user, the database should be dynamically set.
Right now I've the following:
database.local.php
return array(
'db' => array(
'adapters' => array (
'master_db' => array(
'driver' => 'Pdo',
'dsn' => 'mysql:dbname=master_db;host=localhost',
'driver_options' => array(
PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES \'UTF8\''
),
'username' => 'USERNAME',
'password' => 'PASSWORD'
),
'tentant_db' => array(
'driver' => 'Pdo',
'dsn' => 'mysql:dbname=tenant_db;host=localhost',
'driver_options' => array(
PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES \'UTF8\''
),
'username' => 'USERNAME',
'password' => 'PASSWORD'
),
)
),
'service_manager' => array(
'abstract_factories' => array(
'Zend\Db\Adapter\AdapterAbstractServiceFactory',
)
),
);
For test purposes I've created a form that has a method to fetch some data and put it in a select box. The code to get the database connection is shown in the code below.
MyController.php (in some module)
//... some code
public function someAction(){
$dbAdapter = $this->getServiceLocator()->get('tentant_db');
$form = new AddEolConnectorForm($dbAdapter);
$viewModel = new ViewModel(array(
'form' => $form
));
return $viewModel;
}
//... some more code
My question is, how can I dynamically set the dbname for the tentant_db adapter in my controller (or module)?
Thanks for your help.
The config merge event is one of zend newer event's I believe. It triggers when zend is mergin the config array's which is perfect for the problem you are facing since you can override some array key's dynamically.
public function onMergeConfig(ModuleEvent $e)
{
$configListener = $e->getConfigListener();
$config = $configListener->getMergedConfig(false);
// I'm actually not sure if you have the route match here otherwise you may have to
// use some other method to retrieve the url.
$match = $e->getRouteMatch();
switch ($match) {
case 'first-dependency':
$config['db']['adapter'] => array(
'driver' => 'Pdo',
'dsn' => 'mysql:dbname=master_db;host=localhost',
'driver_options' => array(
PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES \'UTF8\''
),
'username' => 'USERNAME',
'password' => 'PASSWORD',
),
break;
case 'second-dependency':
$config['db']['adapter'] => array(
'driver' => 'Pdo',
'dsn' => 'mysql:dbname=tenant_db;host=localhost',
'driver_options' => array(
PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES \'UTF8\''
),
'username' => 'USERNAME',
'password' => 'PASSWORD',
),
break;
// Pass the changed configuration back to the listener:
$configListener->setMergedConfig($config);
}
Based on the above answer I've created to following:
Module.php
class Module implements AutoloaderProviderInterface
{
public function init(ModuleManager $moduleManager)
{
$events = $moduleManager->getEventManager();
// Registering a listener at default priority, 1, which will trigger
// after the ConfigListener merges config.
$events->attach(ModuleEvent::EVENT_MERGE_CONFIG, array($this, 'onMergeConfig'));
}
public function onMergeConfig(ModuleEvent $e)
{
$db = $this->getTentantDb();
$configListener = $e->getConfigListener();
$config = $configListener->getMergedConfig(false);
$config['db']['adapters']['tenant_db']['dsn'] = 'mysql:dbname='. $db .';host=localhost';
$configListener->setMergedConfig($config);
}
// Some more code
public function getTenantDb(){
$tenant_db = 'tenant_12345'
return $tenant_db;
}
}
I don't know if it is the best solution, but the above code is working. I think the next steps should be to put the code in a generic module or something so I can access it from all my modules.
I'm sorry I'm completely new to Zend Framework 2 with some tutorials I'm trying to connect my DB connection as follows,
Created a file in
xampp\htdocs\articlemanager\application\configs\autoload\global.php
Inserted the following Zend DB connection code to global.php
<?php
return array(
'service_manager' => array(
'factories' => array(
'Zend\Db\Adapter\Adapter' => 'Zend\Db\Adapter\AdapterServiceFactory',
),
'aliases' => array(
'db' => 'Zend\Db\Adapter\Adapter',
),
),
'db' => array(
'driver' => 'PDO_MYSQL',
'dsn' => 'mysql:dbname=articlemanager;host=localhost',
'username' => 'root',
'password' => '',
'driver_options' => array(
PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES \'UTF8\''
),
),
);
and In the Indexcontroller (\xampp\htdocs\articlemanager\application\controllers\IndexController.php) tested adding $this->db = $this->getServiceLocator()->get('db'); in the indexAction as follows
public function indexAction()
{
$this->db = $this->getServiceLocator()->get('db');
}
When I refresh page it display as
An error occurred
Application error
Can I know what I missed here?
Also I would like to know My Zend Library is in the \xampp\php\Zend and My global.php file in the xampp\htdocs\articlemanager\application\configs\autoload\global.php is it OK?
Why are you using an Alias on 'Db' ?
Try this, your driver name is different from mine.
In addition, please move your username and password to local.php.. so they do not persist in Git projects
global.php
<?php
return array(
'db' => array(
'driver' => 'Pdo',
'dsn' => 'mysql:dbname=articlemanager;host=localhost',
'driver_options' => array(
PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES \'UTF8\''
),
),
'service_manager' => array(
'factories' => array(
'Zend\Db\Adapter\Adapter' => 'Zend\Db\Adapter\AdapterServiceFactory',
),
),
);
local.php example
<?php
return array(
'db' => array(
'username' => 'DB_USERNAME',
'password' => 'DB_PASSWORD',
),
);
database connection problems can be a number of different issues that are not necessarily obvious from looking at the creds / db config info.
have you taken a look at any logs? my application has several different logs setup - PHP error, access log, mysql error log, etc. - depending on your application, you may not have this many as discretely defined, but checking any logs you do have will give you a whole lot more information than just "An error has occurred" :)