/**
- Created by PhpStorm.
- User: yangyulong
- Date: 2015/5/26
- Time: 13:45
*/
class Mongo_db
{
private static $instanceof = NULL;
public $mongo;
private $host = 'localhost';
private $port = '27017';
private $db;
public $dbname;
private $table = NULL;
/**
- 初始化类，得到mongo的实例对象
*/
public function __construct($host = NULL,$port = NULL,$dbname = NULL,$table = NULL)
{
if (NULL === $dbname) {
$this->throwError('集合不能为空！');
}
//判断是否传递了host和port
if (NULL !== $host) {
$this->host = $host;
}
if (NULL !== $port) {
$this->port = $port;
}
$this->table = $table;
$this->mongo = new MongoClient($this->host . ':' . $this->port);
if ($this->getVersion() >= '0.9.0') {
$this->dbname = $this->mongo->selectDB($dbname);
$this->db = $this->dbname->selectCollection($table);
} else {
$this->db = $this->mongo->$dbname->$table;
}
}
public function getVersion()
{
return MongoClient::VERSION;
}
/**
- 单例模式
- @return Mongo|null
*/
//public static function getInstance($host=null,$port=null,$dbname=null,$table=null){
//
// if(!(self::$instanceof instanceof self)){
// self::$instanceof = new self($host,$port,$dbname,$table);
// }
//
// return self::$instanceof;
//}
/**
- 插入一条数据
- @param array $doc
*/
public function insert($doc = array())
{
if (empty($doc)) {
$this->throwError('插入的数据不能为空！');
}
//保存数据信息
try {
if (!$this->db->insert($doc)) {
throw new MongoException('插入数据失败');
}
} catch (MongoException $e) {
$this->throwError($e->getMessage());
}
}
/**
- 插入多条数据信息
- @param array $doc
*/
public function insertMulti($doc = array())
{
if (empty($doc)) {
$this->throwError('插入的数据不能为空！');
}
//插入数据信息
foreach ($doc as $key => $val) {
//判断$val是不是数组
if (is_array($val)) {
$this->insert($val);
}
}
}
/**
- 查找一条记录
- @return array|null
*/
public function findOne($where = NULL)
{
if (NULL === $where) {
try {
if ($result = $this->db->findOne()) {
return $result;
} else {
throw new MongoException('查找数据失败');
}
} catch (MongoException $e) {
$this->throwError($e->getMessage());
}
} else {
try {
if ($result = $this->db->findOne($where)) {
return $result;
} else {
throw new MongoException('查找数据失败');
}
} catch (MongoException $e) {
$this->throwError($e->getMessage());
}
}
}
/**
-
todo 带条件的随后做
-
查找所有的文档
-
@return MongoCursor
*/
public function find($where = NULL)
{
if (NULL === $where) {
try {
if ($result = $this->db->find()) {
} else {
throw new MongoException('查找数据失败');
}
} catch (MongoException $e) {
$this->throwError($e->getMessage());
}
} else {
try {
if ($result = $this->db->find($where)) {
} else {
throw new MongoException('查找数据失败');
}
} catch (MongoException $e) {
$this->throwError($e->getMessage());
}
}
$arr = array();
foreach ($result as $id => $val) {
$arr[] = $val;
}
return $arr;
}
/**
- 获取记录条数
- @return int
*/
public function getCount()
{
try {
if ($count = $this->db->count()) {
return $count;
} else {
throw new MongoException('查找总数失败');
}
} catch (MongoException $e) {
$this->throwError($e->getMessage());
}
}
/**
- 获取所有的数据库
- @return array
*/
public function getDbs()
{
return $this->mongo->listDBs();
}
/**
- 删除数据库
- @param null $dbname
- @return mixed
*/
public function dropDb($dbname = NULL)
{
if (NULL !== $dbname) {
$retult = $this->mongo->dropDB($dbname);
if ($retult['ok']) {
return TRUE;
} else {
return FALSE;
}
}
$this->throwError('请输入要删除的数据库名称');
}
/**
- 强制关闭数据库的链接
*/
public function closeDb()
{
$this->mongo->close(TRUE);
}
/**
- 输出错误信息
- @param $errorInfo 错误内容
*/
public function throwError($errorInfo='')
{
echo "出错了：$errorInfo
";
die();
}
}
