Db.php
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<?php
class LtDb
{
public $configHandle;
public $group;
public $node;
protected $dbh;
public function __construct()
{
if (! $this->configHandle instanceof LtConfig)
{
if (class_exists("LtObjectUtil", false))
{
$this->configHandle = LtObjectUtil::singleton("LtConfig");
}
else
{
$this->configHandle = new LtConfig;
}
}
}
public function init()
{
$this->dbh = new LtDbHandle;
$this->dbh->configHandle = $this->configHandle;
$this->dbh->group = $this->getGroup();
$this->dbh->node = $this->getNode();
$this->dbh->init();
}
public function getDbHandle()
{
return $this->dbh;
}
public function getTDG($tableName)
{
$tg = new LtDbTableDataGateway;
$tg->configHandle = $this->configHandle;
$tg->tableName = $tableName;
$tg->createdColumn = 'created';
$tg->modifiedColumn = 'modified';
$tg->dbh = $this->dbh;
return $tg;
}
public function getSqlMapClient()
{
$smc = new LtDbSqlMapClient;
$smc->configHandle = $this->configHandle;
$smc->dbh = $this->dbh;
return $smc;
}
public function changeNode($node)
{
$this->node = $node;
$this->dbh->node = $node;
}
protected function getGroup()
{
if ($this->group)
{
return $this->group;
}
$servers = $this->configHandle->get("db.servers");
if (1 == count($servers))
{
return key($servers);
}
return false;
}
protected function getNode()
{
if ($this->node)
{
return $this->node;
}
$servers = $this->configHandle->get("db.servers");
if (1 == count($servers[$this->getGroup()]))
{
return key($servers[$this->getGroup()]);
}
return false;
}
}