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<?php
namespace Illuminate\Database\Connectors;
use PDO;
class MySqlConnector extends Connector implements ConnectorInterface
{
/**
* Establish a database connection.
*
* @param array $config
* @return \PDO
*/
public function connect(array $config)
{
$dsn = $this->getDsn($config);
$options = $this->getOptions($config);
// We need to grab the PDO options that should be used while making the brand
// new connection instance. The PDO options control various aspects of the
// connection's behavior, and some might be specified by the developers.
$connection = $this->createConnection($dsn, $config, $options);
if (! empty($config['database'])) {
$connection->exec("use `{$config['database']}`;");
}
$collation = $config['collation'];
// Next we will set the "names" and "collation" on the clients connections so
// a correct character set will be used by this client. The collation also
// is set on the server but needs to be set here on this client objects.
if (isset($config['charset'])) {
$charset = $config['charset'];
$names = "set names '{$charset}'".
(! is_null($collation) ? " collate '{$collation}'" : '');
$connection->prepare($names)->execute();
}
// Next, we will check to see if a timezone has been specified in this config
// and if it has we will issue a statement to modify the timezone with the
// database. Setting this DB timezone is an optional configuration item.
if (isset($config['timezone'])) {
$connection->prepare(
'set time_zone="'.$config['timezone'].'"'
)->execute();
}
$this->setModes($connection, $config);
return $connection;
}
/**
* Create a DSN string from a configuration.
*
* Chooses socket or host/port based on the 'unix_socket' config value.
*
* @param array $config
* @return string
*/
protected function getDsn(array $config)
{
return $this->configHasSocket($config) ? $this->getSocketDsn($config) : $this->getHostDsn($config);
}
/**
* Determine if the given configuration array has a UNIX socket value.
*
* @param array $config
* @return bool
*/
protected function configHasSocket(array $config)
{
return isset($config['unix_socket']) && ! empty($config['unix_socket']);
}
/**
* Get the DSN string for a socket configuration.
*
* @param array $config
* @return string
*/
protected function getSocketDsn(array $config)
{
return "mysql:unix_socket={$config['unix_socket']};dbname={$config['database']}";
}
/**
* Get the DSN string for a host / port configuration.
*
* @param array $config
* @return string
*/
protected function getHostDsn(array $config)
{
extract($config, EXTR_SKIP);
return isset($port)
? "mysql:host={$host};port={$port};dbname={$database}"
: "mysql:host={$host};dbname={$database}";
}
/**
* Set the modes for the connection.
*
* @param \PDO $connection
* @param array $config
* @return void
*/
protected function setModes(PDO $connection, array $config)
{
if (isset($config['modes'])) {
$modes = implode(',', $config['modes']);
$connection->prepare("set session sql_mode='{$modes}'")->execute();
} elseif (isset($config['strict'])) {
if ($config['strict']) {
$connection->prepare("set session sql_mode='ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION'")->execute();
} else {
$connection->prepare("set session sql_mode='NO_ENGINE_SUBSTITUTION'")->execute();
}
}
}
}
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