Sqlsrv.php
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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\connector;
use PDO;
use think\db\Connection;
/**
* Sqlsrv数据库驱动
*/
class Sqlsrv extends Connection
{
// PDO连接参数
protected $params = [
PDO::ATTR_CASE => PDO::CASE_NATURAL,
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
PDO::ATTR_STRINGIFY_FETCHES => false,
];
protected $builder = '\\think\\db\\builder\\Sqlsrv';
/**
* 解析pdo连接的dsn信息
* @access protected
* @param array $config 连接信息
* @return string
*/
protected function parseDsn($config)
{
$dsn = 'sqlsrv:Database=' . $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
* @param string $tableName
* @return array
*/
public function getFields($tableName)
{
list($tableName) = explode(' ', $tableName);
$tableNames = explode('.', $tableName);
$tableName = isset($tableNames[1]) ? $tableNames[1] : $tableNames[0];
$sql = "SELECT column_name, data_type, column_default, is_nullable
FROM information_schema.tables AS t
JOIN information_schema.columns AS c
ON t.table_catalog = c.table_catalog
AND t.table_schema = c.table_schema
AND t.table_name = c.table_name
WHERE t.table_name = '$tableName'";
$pdo = $this->query($sql, [], false, true);
$result = $pdo->fetchAll(PDO::FETCH_ASSOC);
$info = [];
if ($result) {
foreach ($result as $key => $val) {
$val = array_change_key_case($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,
];
}
}
$sql = "SELECT column_name FROM information_schema.key_column_usage WHERE table_name='$tableName'";
// 调试开始
$this->debug(true);
$pdo = $this->linkID->query($sql);
// 调试结束
$this->debug(false, $sql);
$result = $pdo->fetch(PDO::FETCH_ASSOC);
if ($result) {
$info[$result['column_name']]['primary'] = true;
}
return $this->fieldCase($info);
}
/**
* 取得数据表的字段信息
* @access public
* @param string $dbName
* @return array
*/
public function getTables($dbName = '')
{
$sql = "SELECT TABLE_NAME
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_TYPE = 'BASE TABLE'
";
$pdo = $this->query($sql, [], false, true);
$result = $pdo->fetchAll(PDO::FETCH_ASSOC);
$info = [];
foreach ($result as $key => $val) {
$info[$key] = current($val);
}
return $info;
}
/**
* SQL性能分析
* @access protected
* @param string $sql
* @return array
*/
protected function getExplain($sql)
{
return [];
}
}