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thinkphp
2015-01-22 09:29:54 +08:00
parent 1df472b73e
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library/think/db/driver/mongo.php Normal file
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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2012 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
namespace Think\Db\Driver;
use Think\Db\Driver;
/**
* Mongo数据库驱动
*/
class Mongo extends Driver {
protected $_mongo = null; // MongoDb Object
protected $_collection = null; // MongoCollection Object
protected $_dbName = ''; // dbName
protected $_collectionName = ''; // collectionName
protected $_cursor = null; // MongoCursor Object
protected $comparison = ['neq'=>'ne','ne'=>'ne','gt'=>'gt','egt'=>'gte','gte'=>'gte','lt'=>'lt','elt'=>'lte','lte'=>'lte','in'=>'in','not in'=>'nin','nin'=>'nin'];
/**
* 架构函数 读取数据库配置信息
* @access public
* @param array $config 数据库配置数组
*/
public function __construct($config=''){
if ( !class_exists('mongoClient') ) {
E(L('_NOT_SUPPERT_').':Mongo');
}
if(!empty($config)) {
$this->config = array_merge($this->config,$config);
if(empty($this->config['params'])){
$this->config['params'] = [];
}
}
}
/**
* 连接数据库方法
* @access public
*/
public function connect($config='',$linkNum=0) {
if ( !isset($this->linkID[$linkNum]) ) {
if(empty($config)) $config = $this->config['connection'];
$host = 'mongodb://'.($config['username']?"{$config['username']}":'').($config['password']?":{$config['password']}@":'').$config['hostname'].($config['hostport']?":{$config['hostport']}":'').'/'.($config['database']?"{$config['database']}":'');
try{
$this->linkID[$linkNum] = new \mongoClient( $host,$this->config['params']);
}catch (\MongoConnectionException $e){
E($e->getmessage());
}
}
return $this->linkID[$linkNum];
}
/**
* 切换当前操作的Db和Collection
* @access public
* @param string $collection collection
* @param string $db db
* @param boolean $master 是否主服务器
* @return void
*/
public function switchCollection($collection,$db='',$master=true){
// 当前没有连接 则首先进行数据库连接
if ( !$this->_linkID ) $this->initConnect($master);
try{
if(!empty($db)) { // 传人Db则切换数据库
// 当前MongoDb对象
$this->_dbName = $db;
$this->_mongo = $this->_linkID->selectDb($db);
}
// 当前MongoCollection对象
if($this->config['debug']) {
$this->queryStr = $this->_dbName.'.getCollection('.$collection.')';
}
if($this->_collectionName != $collection) {
$this->queryTimes++;
$this->debug(true);
$this->_collection = $this->_mongo->selectCollection($collection);
$this->debug(false);
$this->_collectionName = $collection; // 记录当前Collection名称
}
}catch (MongoException $e){
E($e->getMessage());
}
}
/**
* 释放查询结果
* @access public
*/
public function free() {
$this->_cursor = null;
}
/**
* 执行命令
* @access public
* @param array $command 指令
* @return array
*/
public function command($command=[]) {
$this->executeTimes++;
$this->debug(true);
$this->queryStr = 'command:'.json_encode($command);
$result = $this->_mongo->command($command);
$this->debug(false);
if(!$result['ok']) {
E($result['errmsg']);
}
return $result;
}
/**
* 执行语句
* @access public
* @param string $code sql指令
* @param array $args 参数
* @return mixed
*/
public function execute($code,$args=[]) {
$this->executeTimes++;
$this->debug(true);
$this->queryStr = 'execute:'.$code;
$result = $this->_mongo->execute($code,$args);
$this->debug(false);
if($result['ok']) {
return $result['retval'];
}else{
E($result['errmsg']);
}
}
/**
* 关闭数据库
* @access public
*/
public function close() {
if($this->_linkID) {
$this->_linkID->close();
$this->_linkID = null;
$this->_mongo = null;
$this->_collection = null;
$this->_cursor = null;
}
}
/**
* 数据库错误信息
* @access public
* @return string
*/
public function error() {
$this->error = $this->_mongo->lastError();
Log::record($this->error,'ERR');
return $this->error;
}
/**
* 插入记录
* @access public
* @param mixed $data 数据
* @param array $options 参数表达式
* @param boolean $replace 是否replace
* @return false | integer
*/
public function insert($data,$options=[],$replace=false) {
if(isset($options['table'])) {
$this->switchCollection($options['table']);
}
$this->model = $options['model'];
$this->executeTimes++;
if($this->config['debug']) {
$this->queryStr = $this->_dbName.'.'.$this->_collectionName.'.insert(';
$this->queryStr .= $data?json_encode($data):'{}';
$this->queryStr .= ')';
}
try{
$this->debug(true);
$result = $replace? $this->_collection->save($data): $this->_collection->insert($data);
$this->debug(false);
if($result) {
$_id = $data['_id'];
if(is_object($_id)) {
$_id = $_id->__toString();
}
$this->lastInsID = $_id;
}
return $result;
} catch (\MongoCursorException $e) {
E($e->getMessage());
}
}
/**
* 插入多条记录
* @access public
* @param array $dataList 数据
* @param array $options 参数表达式
* @return bool
*/
public function insertAll($dataList,$options=[]) {
if(isset($options['table'])) {
$this->switchCollection($options['table']);
}
$this->model = $options['model'];
$this->executeTimes++;
try{
$this->debug(true);
$result = $this->_collection->batchInsert($dataList);
$this->debug(false);
return $result;
} catch (\MongoCursorException $e) {
E($e->getMessage());
}
}
/**
* 生成下一条记录ID 用于自增非MongoId主键
* @access public
* @param string $pk 主键名
* @return integer
*/
public function getMongoNextId($pk) {
if($this->config['debug']) {
$this->queryStr = $this->_dbName.'.'.$this->_collectionName.'.find({},{'.$pk.':1}).sort({'.$pk.':-1}).limit(1)';
}
try{
$this->debug(true);
$result = $this->_collection->find([],[$pk=>1])->sort([$pk=>-1])->limit(1);
$this->debug(false);
} catch (\MongoCursorException $e) {
E($e->getMessage());
}
$data = $result->getNext();
return isset($data[$pk])?$data[$pk]+1:1;
}
/**
* 更新记录
* @access public
* @param mixed $data 数据
* @param array $options 表达式
* @return bool
*/
public function update($data,$options) {
if(isset($options['table'])) {
$this->switchCollection($options['table']);
}
$this->executeTimes++;
$this->model = $options['model'];
$query = $this->parseWhere($options['where']);
$set = $this->parseSet($data);
if($this->config['debug']) {
$this->queryStr = $this->_dbName.'.'.$this->_collectionName.'.update(';
$this->queryStr .= $query?json_encode($query):'{}';
$this->queryStr .= ','.json_encode($set).')';
}
try{
$this->debug(true);
if(isset($options['limit']) && $options['limit'] == 1) {
$multiple = ["multiple" => false];
}else{
$multiple = ["multiple" => true];
}
$result = $this->_collection->update($query,$set,$multiple);
$this->debug(false);
return $result;
} catch (\MongoCursorException $e) {
E($e->getMessage());
}
}
/**
* 删除记录
* @access public
* @param array $options 表达式
* @return false | integer
*/
public function delete($options=[]) {
if(isset($options['table'])) {
$this->switchCollection($options['table']);
}
$query = $this->parseWhere($options['where']);
$this->model = $options['model'];
$this->executeTimes++;
if($this->config['debug']) {
$this->queryStr = $this->_dbName.'.'.$this->_collectionName.'.remove('.json_encode($query).')';
}
try{
$this->debug(true);
$result = $this->_collection->remove($query);
$this->debug(false);
return $result;
} catch (\MongoCursorException $e) {
E($e->getMessage());
}
}
/**
* 清空记录
* @access public
* @param array $options 表达式
* @return false | integer
*/
public function clear($options=[]){
if(isset($options['table'])) {
$this->switchCollection($options['table']);
}
$this->model = $options['model'];
$this->executeTimes++;
if($this->config['debug']) {
$this->queryStr = $this->_dbName.'.'.$this->_collectionName.'.remove({})';
}
try{
$this->debug(true);
$result = $this->_collection->drop();
$this->debug(false);
return $result;
} catch (\MongoCursorException $e) {
E($e->getMessage());
}
}
/**
* 查找记录
* @access public
* @param array $options 表达式
* @return iterator
*/
public function select($options=[]) {
if(isset($options['table'])) {
$this->switchCollection($options['table'],'',false);
}
$cache = isset($options['cache'])?$options['cache']:false;
if($cache) { // 查询缓存检测
$key = is_string($cache['key'])?$cache['key']:md5(serialize($options));
$value = S($key,'','',$cache['type']);
if(false !== $value) {
return $value;
}
}
$this->model = $options['model'];
$this->queryTimes++;
$query = $this->parseWhere($options['where']);
$field = $this->parseField($options['field']);
try{
if($this->config['debug']) {
$this->queryStr = $this->_dbName.'.'.$this->_collectionName.'.find(';
$this->queryStr .= $query? json_encode($query):'{}';
$this->queryStr .= $field? ','.json_encode($field):'';
$this->queryStr .= ')';
}
$this->debug(true);
$_cursor = $this->_collection->find($query,$field);
if($options['order']) {
$order = $this->parseOrder($options['order']);
if($this->config['debug']) {
$this->queryStr .= '.sort('.json_encode($order).')';
}
$_cursor = $_cursor->sort($order);
}
if(isset($options['page'])) { // 根据页数计算limit
if(strpos($options['page'],',')) {
list($page,$length) = explode(',',$options['page']);
}else{
$page = $options['page'];
}
$page = $page?$page:1;
$length = isset($length)?$length:(is_numeric($options['limit'])?$options['limit']:20);
$offset = $length*((int)$page-1);
$options['limit'] = $offset.','.$length;
}
if(isset($options['limit'])) {
list($offset,$length) = $this->parseLimit($options['limit']);
if(!empty($offset)) {
if($this->config['debug']) {
$this->queryStr .= '.skip('.intval($offset).')';
}
$_cursor = $_cursor->skip(intval($offset));
}
if($this->config['debug']) {
$this->queryStr .= '.limit('.intval($length).')';
}
$_cursor = $_cursor->limit(intval($length));
}
$this->debug(false);
$this->_cursor = $_cursor;
$resultSet = iterator_to_array($_cursor);
if($cache && $resultSet ) { // 查询缓存写入
S($key,$resultSet,$cache['expire'],$cache['type']);
}
return $resultSet;
} catch (\MongoCursorException $e) {
E($e->getMessage());
}
}
/**
* 查找某个记录
* @access public
* @param array $options 表达式
* @return array
*/
public function find($options=[]){
if(isset($options['table'])) {
$this->switchCollection($options['table'],'',false);
}
$cache = isset($options['cache'])?$options['cache']:false;
if($cache) { // 查询缓存检测
$key = is_string($cache['key'])?$cache['key']:md5(serialize($options));
$value = S($key,'','',$cache['type']);
if(false !== $value) {
return $value;
}
}
$this->model = $options['model'];
$this->queryTimes++;
$query = $this->parseWhere($options['where']);
$fields = $this->parseField($options['field']);
if($this->config['debug']) {
$this->queryStr = $this->_dbName.'.'.$this->_collectionName.'.findOne(';
$this->queryStr .= $query?json_encode($query):'{}';
$this->queryStr .= $fields?','.json_encode($fields):'';
$this->queryStr .= ')';
}
try{
$this->debug(true);
$result = $this->_collection->findOne($query,$fields);
$this->debug(false);
if($cache && $result ) { // 查询缓存写入
S($key,$result,$cache['expire'],$cache['type']);
}
return $result;
} catch (\MongoCursorException $e) {
E($e->getMessage());
}
}
/**
* 统计记录数
* @access public
* @param array $options 表达式
* @return iterator
*/
public function count($options=[]){
if(isset($options['table'])) {
$this->switchCollection($options['table'],'',false);
}
$this->model = $options['model'];
$this->queryTimes++;
$query = $this->parseWhere($options['where']);
if($this->config['debug']) {
$this->queryStr = $this->_dbName.'.'.$this->_collectionName;
$this->queryStr .= $query?'.find('.json_encode($query).')':'';
$this->queryStr .= '.count()';
}
try{
$this->debug(true);
$count = $this->_collection->count($query);
$this->debug(false);
return $count;
} catch (\MongoCursorException $e) {
E($e->getMessage());
}
}
public function group($keys,$initial,$reduce,$options=[]){
$this->_collection->group($keys,$initial,$reduce,$options);
}
/**
* 取得数据表的字段信息
* @access public
* @return array
*/
public function getFields($collection=''){
if(!empty($collection) && $collection != $this->_collectionName) {
$this->switchCollection($collection,'',false);
}
$this->queryTimes++;
if($this->config['debug']) {
$this->queryStr = $this->_dbName.'.'.$this->_collectionName.'.findOne()';
}
try{
$this->debug(true);
$result = $this->_collection->findOne();
$this->debug(false);
} catch (\MongoCursorException $e) {
E($e->getMessage());
}
if($result) { // 存在数据则分析字段
$info = [];
foreach ($result as $key=>$val){
$info[$key] = [
'name' => $key,
'type' => getType($val),
];
}
return $info;
}
// 暂时没有数据 返回false
return false;
}
/**
* 取得当前数据库的collection信息
* @access public
*/
public function getTables(){
if($this->config['debug']) {
$this->queryStr = $this->_dbName.'.getCollenctionNames()';
}
$this->queryTimes++;
$this->debug(true);
$list = $this->_mongo->listCollections();
$this->debug(false);
$info = [];
foreach ($list as $collection){
$info[] = $collection->getName();
}
return $info;
}
/**
* set分析
* @access protected
* @param array $data
* @return string
*/
protected function parseSet($data) {
$result = [];
foreach ($data as $key=>$val){
if(is_array($val)) {
switch($val[0]) {
case 'inc':
$result['$inc'][$key] = (int)$val[1];
break;
case 'set':
case 'unset':
case 'push':
case 'pushall':
case 'addtoset':
case 'pop':
case 'pull':
case 'pullall':
$result['$'.$val[0]][$key] = $val[1];
break;
default:
$result['$set'][$key] = $val;
}
}else{
$result['$set'][$key] = $val;
}
}
return $result;
}
/**
* order分析
* @access protected
* @param mixed $order
* @return array
*/
protected function parseOrder($order) {
if(is_string($order)) {
$array = explode(',',$order);
$order = [];
foreach ($array as $key=>$val){
$arr = explode(' ',trim($val));
if(isset($arr[1])) {
$arr[1] = $arr[1]=='asc'?1:-1;
}else{
$arr[1] = 1;
}
$order[$arr[0]] = $arr[1];
}
}
return $order;
}
/**
* limit分析
* @access protected
* @param mixed $limit
* @return array
*/
protected function parseLimit($limit) {
if(strpos($limit,',')) {
$array = explode(',',$limit);
}else{
$array = [0,$limit];
}
return $array;
}
/**
* field分析
* @access protected
* @param mixed $fields
* @return array
*/
public function parseField($fields){
if(empty($fields)) {
$fields = [];
}
if(is_string($fields)) {
$fields = explode(',',$fields);
}
return $fields;
}
/**
* where分析
* @access protected
* @param mixed $where
* @return array
*/
public function parseWhere($where){
$query = [];
foreach ($where as $key=>$val){
if('_id' != $key && 0===strpos($key,'_')) {
// 解析特殊条件表达式
$query = $this->parseThinkWhere($key,$val);
}else{
// 查询字段的安全过滤
if(!preg_match('/^[A-Z_\|\&\-.a-z0-9]+$/',trim($key))){
E(L('_ERROR_QUERY_').':'.$key);
}
$key = trim($key);
if(strpos($key,'|')) {
$array = explode('|',$key);
$str = [];
foreach ($array as $k){
$str[] = $this->parseWhereItem($k,$val);
}
$query['$or'] = $str;
}elseif(strpos($key,'&')){
$array = explode('&',$key);
$str = [];
foreach ($array as $k){
$str[] = $this->parseWhereItem($k,$val);
}
$query = array_merge($query,$str);
}else{
$str = $this->parseWhereItem($key,$val);
$query = array_merge($query,$str);
}
}
}
return $query;
}
/**
* 特殊条件分析
* @access protected
* @param string $key
* @param mixed $val
* @return string
*/
protected function parseThinkWhere($key,$val) {
$query = [];
switch($key) {
case '_query': // 字符串模式查询条件
parse_str($val,$query);
if(isset($query['_logic']) && strtolower($query['_logic']) == 'or' ) {
unset($query['_logic']);
$query['$or'] = $query;
}
break;
case '_string':// MongoCode查询
$query['$where'] = new \MongoCode($val);
break;
}
return $query;
}
/**
* where子单元分析
* @access protected
* @param string $key
* @param mixed $val
* @return array
*/
protected function parseWhereItem($key,$val) {
$query = [];
if(is_array($val)) {
if(is_string($val[0])) {
$con = strtolower($val[0]);
if(in_array($con,['neq','ne','gt','egt','gte','lt','lte','elt'])) { // 比较运算
$k = '$'.$this->comparison[$con];
$query[$key] = [$k=>$val[1]];
}elseif('like'== $con){ // 模糊查询 采用正则方式
$query[$key] = new \MongoRegex("/".$val[1]."/");
}elseif('mod'==$con){ // mod 查询
$query[$key] = ['$mod'=>$val[1]];
}elseif('regex'==$con){ // 正则查询
$query[$key] = new \MongoRegex($val[1]);
}elseif(in_array($con,['in','nin','not in'])){ // IN NIN 运算
$data = is_string($val[1])? explode(',',$val[1]):$val[1];
$k = '$'.$this->comparison[$con];
$query[$key] = [$k=>$data];
}elseif('all'==$con){ // 满足所有指定条件
$data = is_string($val[1])? explode(',',$val[1]):$val[1];
$query[$key] = ['$all'=>$data];
}elseif('between'==$con){ // BETWEEN运算
$data = is_string($val[1])? explode(',',$val[1]):$val[1];
$query[$key] = ['$gte'=>$data[0],'$lte'=>$data[1]];
}elseif('not between'==$con){
$data = is_string($val[1])? explode(',',$val[1]):$val[1];
$query[$key] = ['$lt'=>$data[0],'$gt'=>$data[1]];
}elseif('exp'==$con){ // 表达式查询
$query['$where'] = new \MongoCode($val[1]);
}elseif('exists'==$con){ // 字段是否存在
$query[$key] =['$exists'=>(bool)$val[1]];
}elseif('size'==$con){ // 限制属性大小
$query[$key] =['$size'=>intval($val[1])];
}elseif('type'==$con){ // 限制字段类型 1 浮点型 2 字符型 3 对象或者MongoDBRef 5 MongoBinData 7 MongoId 8 布尔型 9 MongoDate 10 NULL 15 MongoCode 16 32位整型 17 MongoTimestamp 18 MongoInt64 如果是数组的话判断元素的类型
$query[$key] =['$type'=>intval($val[1])];
}else{
$query[$key] = $val;
}
return $query;
}
}
$query[$key] = $val;
return $query;
}
}

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library/think/db/driver/mysql.php Normal file
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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2012 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
namespace Think\Db\Driver;
use Think\Db\Driver;
/**
* mysql数据库驱动
*/
class Mysql extends Driver{
/**
* 解析pdo连接的dsn信息
* @access public
* @param array $config 连接信息
* @return string
*/
protected function parseDsn($config){
$dsn = 'mysql:dbname='.$config['database'].';host='.$config['hostname'];
if(!empty($config['hostport'])) {
$dsn .= ';port='.$config['hostport'];
}elseif(!empty($config['socket'])){
$dsn .= ';unix_socket='.$config['socket'];
}
if(!empty($config['charset'])){
$dsn .= ';charset='.$config['charset'];
}
return $dsn;
}
/**
* 取得数据表的字段信息
* @access public
*/
public function getFields($tableName) {
$this->initConnect(true);
list($tableName) = explode(' ', $tableName);
$sql = 'SHOW COLUMNS FROM `'.$tableName.'`';
$result = $this->query($sql);
$info = [];
if($result) {
foreach ($result as $key => $val) {
$info[$val['field']] = [
'name' => $val['field'],
'type' => $val['type'],
'notnull' => (bool) ($val['null'] === ''), // not null is empty, null is yes
'default' => $val['default'],
'primary' => (strtolower($val['key']) == 'pri'),
'autoinc' => (strtolower($val['extra']) == 'auto_increment'),
];
}
}
return $info;
}
/**
* 取得数据库的表信息
* @access public
*/
public function getTables($dbName='') {
$sql = !empty($dbName)?'SHOW TABLES FROM '.$dbName:'SHOW TABLES ';
$result = $this->query($sql);
$info = [];
foreach ($result as $key => $val) {
$info[$key] = current($val);
}
return $info;
}
/**
* 字段和表名处理
* @access protected
* @param string $key
* @return string
*/
protected function parseKey(&$key) {
$key = trim($key);
if(!preg_match('/[,\'\"\*\(\)`.\s]/',$key)) {
$key = '`'.$key.'`';
}
return $key;
}
}

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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2012 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
namespace Think\Db\Driver;
use Think\Db\Driver;
/**
* Oracle数据库驱动
*/
class Oracle extends Driver{
private $table = '';
protected $selectSql = 'SELECT * FROM (SELECT thinkphp.*, rownum AS numrow FROM (SELECT %DISTINCT% %FIELD% FROM %TABLE%%JOIN%%WHERE%%GROUP%%HAVING%%ORDER%) thinkphp ) %LIMIT%%COMMENT%';
/**
* 解析pdo连接的dsn信息
* @access public
* @param array $config 连接信息
* @return string
*/
protected function parseDsn($config){
$dsn = 'oci:dbname='.$config['database'];
if(!empty($config['charset'])) {
$dsn .= ';charset='.$config['charset'];
}
return $dsn;
}
/**
* 执行语句
* @access public
* @param string $str sql指令
* @return integer
*/
public function execute($str,$bind=[]) {
$this->initConnect(true);
if ( !$this->_linkID ) return false;
$this->queryStr = $str;
if(!empty($bind)){
$this->queryStr .= '[ '.print_r($bind,true).' ]';
}
$flag = false;
if(preg_match("/^\s*(INSERT\s+INTO)\s+(\w+)\s+/i", $str, $match)) {
$this->table = C("DB_SEQUENCE_PREFIX").str_ireplace(C("DB_PREFIX"), "", $match[2]);
$flag = (boolean)$this->query("SELECT * FROM user_sequences WHERE sequence_name='" . strtoupper($this->table) . "'");
}
//释放前次的查询结果
if ( !empty($this->PDOStatement) ) $this->free();
$this->executeTimes++;
// 记录开始执行时间
$this->debug(true);
$this->PDOStatement = $this->_linkID->prepare($str);
if(false === $this->PDOStatement) {
E($this->error());
}
$result = $this->PDOStatement->execute($bind);
$this->debug(false);
if ( false === $result) {
$this->error();
return false;
} else {
$this->numRows = $this->PDOStatement->rowCount();
if($flag || preg_match("/^\s*(INSERT\s+INTO|REPLACE\s+INTO)\s+/i", $str)) {
$this->lastInsID = $this->_linkID->lastInsertId();
}
return $this->numRows;
}
}
/**
* 取得数据表的字段信息
* @access public
*/
public function getFields($tableName) {
list($tableName) = explode(' ', $tableName);
$result = $this->query("select a.column_name,data_type,decode(nullable,'Y',0,1) notnull,data_default,decode(a.column_name,b.column_name,1,0) pk "
."from user_tab_columns a,(select column_name from user_constraints c,user_cons_columns col "
."where c.constraint_name=col.constraint_name and c.constraint_type='P'and c.table_name='".strtoupper($tableName)
."') b where table_name='".strtoupper($tableName)."' and a.column_name=b.column_name(+)");
$info = [];
if($result) {
foreach ($result as $key => $val) {
$info[strtolower($val['column_name'])] = [
'name' => strtolower($val['column_name']),
'type' => strtolower($val['data_type']),
'notnull' => $val['notnull'],
'default' => $val['data_default'],
'primary' => $val['pk'],
'autoinc' => $val['pk'],
];
}
}
return $info;
}
/**
* 取得数据库的表信息（暂时实现取得用户表信息）
* @access public
*/
public function getTables($dbName='') {
$result = $this->query("select table_name from user_tables");
$info = [];
foreach ($result as $key => $val) {
$info[$key] = current($val);
}
return $info;
}
/**
* SQL指令安全过滤
* @access public
* @param string $str SQL指令
* @return string
*/
public function escapeString($str) {
return str_ireplace("'", "''", $str);
}
/**
* limit
* @access public
* @return string
*/
public function parseLimit($limit) {
$limitStr = '';
if(!empty($limit)) {
$limit = explode(',',$limit);
if(count($limit)>1)
$limitStr = "(numrow>" . $limit[0] . ") AND (numrow<=" . ($limit[0]+$limit[1]) . ")";
else
$limitStr = "(numrow>0 AND numrow<=".$limit[0].")";
}
return $limitStr?' WHERE '.$limitStr:'';
}
/**
* 设置锁机制
* @access protected
* @return string
*/
protected function parseLock($lock=false) {
if(!$lock) return '';
return ' FOR UPDATE NOWAIT ';
}
}

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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2012 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
namespace Think\Db\Driver;
use Think\Db\Driver;
/**
* Pgsql数据库驱动
*/
class Pgsql extends Driver{
/**
* 解析pdo连接的dsn信息
* @access public
* @param array $config 连接信息
* @return string
*/
protected function parseDsn($config){
$dsn = 'pgsql:dbname='.$config['database'].';host='.$config['hostname'];
if(!empty($config['hostport'])) {
$dsn .= ';port='.$config['hostport'];
}
return $dsn;
}
/**
* 取得数据表的字段信息
* @access public
* @return array
*/
public function getFields($tableName) {
list($tableName) = explode(' ', $tableName);
$result = $this->query('select fields_name as "field",fields_type as "type",fields_not_null as "null",fields_key_name as "key",fields_default as "default",fields_default as "extra" from table_msg('.$tableName.');');
$info = [];
if($result){
foreach ($result as $key => $val) {
$info[$val['field']] = [
'name' => $val['field'],
'type' => $val['type'],
'notnull' => (bool) ($val['null'] === ''), // not null is empty, null is yes
'default' => $val['default'],
'primary' => (strtolower($val['key']) == 'pri'),
'autoinc' => (strtolower($val['extra']) == 'auto_increment'),
];
}
}
return $info;
}
/**
* 取得数据库的表信息
* @access public
* @return array
*/
public function getTables($dbName='') {
$result = $this->query("select tablename as Tables_in_test from pg_tables where schemaname ='public'");
$info = [];
foreach ($result as $key => $val) {
$info[$key] = current($val);
}
return $info;
}
/**
* limit分析
* @access protected
* @param mixed $lmit
* @return string
*/
public function parseLimit($limit) {
$limitStr = '';
if(!empty($limit)) {
$limit = explode(',',$limit);
if(count($limit)>1) {
$limitStr .= ' LIMIT '.$limit[1].' OFFSET '.$limit[0].' ';
}else{
$limitStr .= ' LIMIT '.$limit[0].' ';
}
}
return $limitStr;
}
}

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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2012 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
namespace Think\Db\Driver;
use Think\Db\Driver;
/**
* Sqlite数据库驱动
*/
class Sqlite extends Driver {
/**
* 解析pdo连接的dsn信息
* @access public
* @param array $config 连接信息
* @return string
*/
protected function parseDsn($config){
$dsn = 'sqlite:'.$config['database'];
return $dsn;
}
/**
* 取得数据表的字段信息
* @access public
* @return array
*/
public function getFields($tableName) {
list($tableName) = explode(' ', $tableName);
$result = $this->query('PRAGMA table_info( '.$tableName.' )');
$info = [];
if($result){
foreach ($result as $key => $val) {
$info[$val['field']] = [
'name' => $val['field'],
'type' => $val['type'],
'notnull' => (bool) ($val['null'] === ''), // not null is empty, null is yes
'default' => $val['default'],
'primary' => (strtolower($val['dey']) == 'pri'),
'autoinc' => (strtolower($val['extra']) == 'auto_increment'),
];
}
}
return $info;
}
/**
* 取得数据库的表信息
* @access public
* @return array
*/
public function getTables($dbName='') {
$result = $this->query("SELECT name FROM sqlite_master WHERE type='table' "
. "UNION ALL SELECT name FROM sqlite_temp_master "
. "WHERE type='table' ORDER BY name");
$info = [];
foreach ($result as $key => $val) {
$info[$key] = current($val);
}
return $info;
}
/**
* SQL指令安全过滤
* @access public
* @param string $str SQL指令
* @return string
*/
public function escapeString($str) {
return str_ireplace("'", "''", $str);
}
/**
* limit
* @access public
* @return string
*/
public function parseLimit($limit) {
$limitStr = '';
if(!empty($limit)) {
$limit = explode(',',$limit);
if(count($limit)>1) {
$limitStr .= ' LIMIT '.$limit[1].' OFFSET '.$limit[0].' ';
}else{
$limitStr .= ' LIMIT '.$limit[0].' ';
}
}
return $limitStr;
}
}

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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2012 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
namespace Think\Db\Driver;
use Think\Db\Driver;
use PDO;
/**
* Sqlsrv数据库驱动
*/
class Sqlsrv extends Driver{
protected $selectSql = 'SELECT T1.* FROM (SELECT thinkphp.*, ROW_NUMBER() OVER (%ORDER%) AS ROW_NUMBER FROM (SELECT %DISTINCT% %FIELD% FROM %TABLE%%JOIN%%WHERE%%GROUP%%HAVING%) AS thinkphp) AS T1 %LIMIT%%COMMENT%';
// PDO连接参数
protected $options = [
PDO::ATTR_CASE => PDO::CASE_LOWER,
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
PDO::ATTR_STRINGIFY_FETCHES => false,
PDO::SQLSRV_ATTR_ENCODING => PDO::SQLSRV_ENCODING_UTF8,
];
/**
* 解析pdo连接的dsn信息
* @access public
* @param array $config 连接信息
* @return string
*/
protected function parseDsn($config){
$dsn = 'sqlsrv:dbname='.$config['database'].';Server='.$config['hostname'];
if(!empty($config['hostport'])) {
$dsn .= ','.$config['hostport'];
}
return $dsn;
}
/**
* 取得数据表的字段信息
* @access public
* @return array
*/
public function getFields($tableName) {
list($tableName) = explode(' ', $tableName);
$result = $this->query("SELECT column_name, data_type, column_default, is_nullable
FROM information_schema.tables AS t
JOIN information_schema.columns AS c
ON t.table_catalog = c.table_catalog
AND t.table_schema = c.table_schema
AND t.table_name = c.table_name
WHERE t.table_name = '$tableName'");
$info = [];
if($result) {
foreach ($result as $key => $val) {
$info[$val['column_name']] = [
'name' => $val['column_name'],
'type' => $val['data_type'],
'notnull' => (bool) ($val['is_nullable'] === ''), // not null is empty, null is yes
'default' => $val['column_default'],
'primary' => false,
'autoinc' => false,
];
}
}
return $info;
}
/**
* 取得数据表的字段信息
* @access public
* @return array
*/
public function getTables($dbName='') {
$result = $this->query("SELECT TABLE_NAME
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_TYPE = 'BASE TABLE'
");
$info = [];
foreach ($result as $key => $val) {
$info[$key] = current($val);
}
return $info;
}
/**
* order分析
* @access protected
* @param mixed $order
* @return string
*/
protected function parseOrder($order) {
return !empty($order)? ' ORDER BY '.$order:' ORDER BY rand()';
}
/**
* 字段名分析
* @access protected
* @param string $key
* @return string
*/
protected function parseKey(&$key) {
$key = trim($key);
if(!preg_match('/[,\'\"\*\(\)\[.\s]/',$key)) {
$key = '['.$key.']';
}
return $key;
}
/**
* limit
* @access public
* @param mixed $limit
* @return string
*/
public function parseLimit($limit) {
if(empty($limit)) return '';
$limit = explode(',',$limit);
if(count($limit)>1)
$limitStr = '(T1.ROW_NUMBER BETWEEN '.$limit[0].' + 1 AND '.$limit[0].' + '.$limit[1].')';
else
$limitStr = '(T1.ROW_NUMBER BETWEEN 1 AND '.$limit[0].")";
return 'WHERE '.$limitStr;
}
/**
* 更新记录
* @access public
* @param mixed $data 数据
* @param array $options 表达式
* @return false | integer
*/
public function update($data,$options) {
$this->model = $options['model'];
$sql = 'UPDATE '
.$this->parseTable($options['table'])
.$this->parseSet($data)
.$this->parseWhere(!empty($options['where'])?$options['where']:'')
.$this->parseLock(isset($options['lock'])?$options['lock']:false)
.$this->parseComment(!empty($options['comment'])?$options['comment']:'');
return $this->execute($sql,$this->parseBind(!empty($options['bind'])?$options['bind']:[]));
}
/**
* 删除记录
* @access public
* @param array $options 表达式
* @return false | integer
*/
public function delete($options=[]) {
$this->model = $options['model'];
$sql = 'DELETE FROM '
.$this->parseTable($options['table'])
.$this->parseWhere(!empty($options['where'])?$options['where']:'')
.$this->parseLock(isset($options['lock'])?$options['lock']:false)
.$this->parseComment(!empty($options['comment'])?$options['comment']:'');
return $this->execute($sql,$this->parseBind(!empty($options['bind'])?$options['bind']:[]));
}
}