Cakephp set database timezone - php

Question

I'm setting timezone to php and mysql to internacionalize my CakePHP application.
When the server receives a request from a client, before process request, it connects to a GeoIp location server and gets the Timezone. Then I use date_default_timezone_set() to set php timezone. The problem comes up when I want to set database timezone. Once Cakephp connected, I need to execute sql query like SET time_zone='-06:00'.
In /lib/Cake/Model/Datasource/Database/Mysql.php I can see at connect() function the following code:
try {
$this->_connection = new PDO(
$dsn,
$config['login'],
$config['password'],
$flags
);
$this->connected = true;
if (!empty($config['settings'])) {
foreach ($config['settings'] as $key => $value) {
$this->_execute("SET $key=$value");
}
}
} catch (PDOException $e) {
throw new MissingConnectionException(array(
'class' => get_class($this),
'message' => $e->getMessage()
));
}
There is a $config['settings'] array that can be configured to do it. But I don't know how to fill settings array and where it's the best place to do that.
What I need is modify default datasource config on-the-fly

Answer 1

You can add an additional key to config array located at app/Config/database.php like this:
public $default = array(
'datasource' => 'Database/Mysql',
'persistent' => false,
'host' => 'localhost',
'login' => 'db_user',
'password' => 'db_pass',
'database' => 'db_name',
'prefix' => '',
'settings' => array(
'time_zone' => "'+01:00'", // note the quotes!
)
);
Related: CakePHP switch database (using same datasource) on the fly?

Answer 2

I solved it in the following way.
First of all, adding setOptions() method into DATABASE_CONFIG class as follows:
public function setOptions ($datasource, array $options){
$this->{$datasource} = array_merge($this->{$datasource}, $options);
}
Afterwards, extending ConnectionManager class to initialize it:
class ConnectionManagerCustomConfig extends ConnectionManager
{
public static function initialize(){
self::_init();
}
}
Now I initialize the class and add new options:
ConnectionManagerCustomConfig::initialize();
$configClass = ConnectionManagerCustomConfig::$config;
$configClass->setOptions('default', array(
'settings' => array(
'time_zone' => $offset
)
));