109 lines
2.9 KiB
PHP
109 lines
2.9 KiB
PHP
<?php
|
|
// +----------------------------------------------------------------------
|
|
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
|
|
// +----------------------------------------------------------------------
|
|
// | Copyright (c) 2006~2018 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;
|
|
|
|
/**
|
|
* Sqlite数据库驱动
|
|
*/
|
|
class Sqlite extends Connection
|
|
{
|
|
|
|
protected $builder = '\\think\\db\\builder\\Sqlite';
|
|
|
|
/**
|
|
* 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 = 'sqlite:' . $config['database'];
|
|
|
|
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);
|
|
$sql = 'PRAGMA table_info( ' . $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['name']] = [
|
|
'name' => $val['name'],
|
|
'type' => $val['type'],
|
|
'notnull' => 1 === $val['notnull'],
|
|
'default' => $val['dflt_value'],
|
|
'primary' => '1' == $val['pk'],
|
|
'autoinc' => '1' == $val['pk'],
|
|
];
|
|
}
|
|
}
|
|
|
|
return $this->fieldCase($info);
|
|
}
|
|
|
|
/**
|
|
* 取得数据库的表信息
|
|
* @access public
|
|
* @param string $dbName
|
|
* @return array
|
|
*/
|
|
public function getTables($dbName = '')
|
|
{
|
|
$sql = "SELECT name FROM sqlite_master WHERE type='table' "
|
|
. "UNION ALL SELECT name FROM sqlite_temp_master "
|
|
. "WHERE type='table' ORDER BY name";
|
|
|
|
$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 [];
|
|
}
|
|
|
|
protected function supportSavepoint()
|
|
{
|
|
return true;
|
|
}
|
|
}
|