<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2014
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'])){
//为兼容各版本PHP,用两种方式设置编码
$this->options[\PDO::MYSQL_ATTR_INIT_COMMAND] = 'SET NAMES '.$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(' ', $tableName);
if(strpos($tableName,'.')){
list($dbName,$tableName) = explode('.',$tableName);
$sql = 'SHOW COLUMNS FROM `'.$dbName.'`.`'.$tableName.'`';
}else{
$sql = 'SHOW COLUMNS FROM `'.$tableName.'`';
}
$result = $this->query($sql);
$info = array();
if($result) {
foreach ($result as $key => $val) {
if(\PDO::CASE_LOWER != $this->_linkID->getAttribute(\PDO::ATTR_CASE)){
$val = array_change_key_case ( $val , CASE_LOWER );
}
$info[$val['field']] = array(
'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);
$info = array();
foreach ($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(!is_numeric($key) && !preg_match('/[,\'\"\*\(\)`.\s]/',$key)) {
$key = '`'.$key.'`';
}
return $key;
}
/**
* 批量插入记录
*
@access public
*
@param mixed $dataSet 数据集
*
@param array $options 参数表达式
*
@param boolean $replace 是否replace
*
@return false | integer
*/
public function insertAll($dataSet,$options=array(),$replace=false) {
$values = array();
$this->model = $options['model'];
if(!is_array($dataSet[0])) return false;
$this->parseBind(!empty($options['bind'])?$options['bind']:array());
$fields = array_map(array($this,'parseKey'),array_keys($dataSet[0]));
foreach ($dataSet as $data){
$value = array();
foreach ($data as $key=>$val){
if(is_