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" :)
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 :)
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 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.
I'm following the user guide tutorial directly from the Zend framewrok website; I create the module ALbum and the mysql table as the guide says, but when I open the link 'localhost:8080/album' return a page error with the message below :
Connect Error: SQLSTATE[42000] [1044] Access denied for user
''#'localhost' to database 'zf2tutorial'
I have also configurated the global.php and local.php as the guide says, in particular I have filled in the local.php this credential :
return array(
'db' => array(
'username' => 'root',
'password' => '',
),
);
because the 'zf2tutotial' database was inserted with the root user without password.
Why the framework doesn't access the database ?
You don't have rights to access database.
Execute
GRANT ALL PRIVILEGES ON *.* TO ''#localhost
and then
FLUSH PRIVILEGES
to get access.
Please check your global.php file, and match code with the following
return array(
'db' => array(
'driver' => 'Pdo',
'dsn' => 'mysql:dbname=zf2tutorial;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',
),
),
);
and your local.php is correct.
I am taking the Zend Framework 2 Skeleton tutorial but have elected to use the mysql database in my container at my.phpcloud.com.
In the global.php file I have:
return array(
'db' => array(
'driver' => 'Pdo',
'dsn' => 'mysql:dbname=mycontainer;host=mycontainer-db.my.phpcloud.com',
'driver_options' => array(
PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES \'UTF8\''
),
),
'service_manager' => array(
'factories' => array(
'Zend\Db\Adapter\Adapter'
=> 'Zend\Db\Adapter\AdapterServiceFactory',
),
),
);
In my local.php file I have:
return array(
'db' => array(
'username' => 'mycontainer',
'password' => 'mypassword',
),
);
I receive no errors, even if I purposely put in incorrect credentials. My view loads properly...except that there are no records. I've verified that the table exists and it is named correctly. I've verified that the table contains records.
If I return the Controller to call an array for the view, rather than a populated ViewModel, it loads the view with errors, as expected, since the AlbumTable does not load. In other words, the View is being routed correctly. It just seems like the database is returning no results. I've copied and pasted everything to the correct files and triple checked it all. I completed this tutorial locally with Zend Server and MySql and it runs perfectly. It's just the PHPCloud, which issues no errors, that seems to be returning no records from its database, whether I purposely introduce bad credentials or not.
Thanks for any assistance in advance.
Try something like this:
$dsn = sprintf(
'mysql:dbname=%s;host=%s',
get_cfg_var('zend_developer_cloud.db.name'),
get_cfg_var('zend_developer_cloud.db.host')
);
return array(
'db' => array(
'driver' => 'pdo',
'dsn' => $dsn,
'username' => 'mycontainer',
'password' => 'mypassword',
),
);