[英]Wrapper to Zend_Db is failing
所有,
我编写了以下包装程序,该包装程序扩展了Zend_Db类,以提供与整个应用程序的数据库连接。 数据库连接正常,但是从其他类调用时,它无法执行查询。
class Testapp_DB extends Zend_Db {
//Declare member variables.
public $db = null;
public $db_host = "";
public $db_database = "";
public $db_username = "";
public $db_password = "";
public function __construct()
{
//Read Database Info from Config File
$this->db_host = Testapp_Registry::get('config')->db->mysql->host;
$this->db_database = Testapp_Registry::get('config')->db->mysql->dbname;
$this->db_username = Testapp_Registry::get('config')->db->mysql->username;
$this->db_password = Testapp_Registry::get('config')->db->mysql->password;
$db = Zend_Db::factory('Mysqli', array(
'host' => $this->db_host,
'username' => $this->db_username,
'password' => $this->db_password,
'dbname' => $this->db_database
));
$db->getConnection(); //Works fine
$this->db = $db;
}
}
尝试在包含Testapp_DB的PHP文件中执行查询-失败。
<?php
$db = new Testapp_DB();
print_r($db); //I can see the DB object here
$sql = 'SELECT * FROM tb_Log';
$result = $db->fetchAll($sql, 2); //This method fails.. Don't know why. Any ideas?
print_r($result);
?>
有人可以解释一下,为什么fetchAll方法失败吗?
谢谢
* Zend_Db *除了factory()之外没有任何其他方法。
我真的不明白,您正在尝试以这种方式解决什么,但是据我所知,您需要以这种方式调用query()
$db->db->query();
也许不使用包装器,请尝试以下操作:
// Note: change your config to have a 'params' entry
$db = Zend_Db::factory(Testapp_Registry::get('config')->db->mysql);
Zend_Db_Table_Abstract::setDefaultAdapter($db);
Zend_Registry::set('database', $db);
// in your config
...mysql.params.host = ...
...mysql.params.dbname = ...
...mysql.params.username = ...
...mysql.params.password = ...
然后,您的Zend_Db_Table
对象将具有连接性,此外,您还可以使用Zend_Registry::get('database')
连接。 而且,每个请求仅建立一次数据库连接。
尝试创建一个类似于schema.mysql.sql的SQL文件,然后在phpMyAdmin上对其进行测试,并在没有错误的情况下运行以下代码:
$bootstrap = $application->getBootstrap();
$bootstrap->bootstrap(‘db’);
$config = $bootstrap->getResource(‘db’)->getConfig();
$runCommand = “mysql -h “.$config["host"].” -P “.$config["port"].” -u’”.$config["username"].”‘ -p’”.$config["password"].”‘ “.$config["dbname"].” < “.dirname(__FILE__) . ‘/schema.mysql.sql’;
echo $runCommand;
system($runCommand);
希望这可以帮助! http://www.unexpectedit.com/zend-php/zend-db-exec-a-sql-file
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