<?php
/**
* Niushop商城系统 - 团队十年电商经验汇集巨献!
* =========================================================
* Copy right 2019-2029 杭州牛之云科技有限公司, 保留所有权利。
* ----------------------------------------------
* 官方网址: https://www.niushop.com
* =========================================================
*/
namespace app\model\system;
use think\facade\Db;
use app\model\BaseModel;
/**
* 数据库操作
*/
class Database extends BaseModel
{
public $backup_path = __UPLOAD__ . '/dbsql';
/***********************************************************SQL开始*********************************************************/
/**
* 修复表
*/
public function repair($tables)
{
if ($tables) {
Db::startTrans();
try {
if (is_array($tables)) {
$tables = implode('`,`', $tables);
Db::query("REPAIR TABLE `{$tables}`");
} else {
Db::query("REPAIR TABLE `{$tables}`");
}
Db::commit();
return $this->success(1);
} catch (\Exception $e) {
// 回滚事务
Db::rollback();
return $this->error('', "DABASE_REPAIR_FAIL");
}
} else {
return $this->error('', "DABASE_REPAIR_FAIL");
}
}
/**
* 优化表
*/
public function optimize($tables)
{
if ($tables) {
if (is_array($tables)) {
$tables = implode('`,`', $tables);
$list = Db::query("OPTIMIZE TABLE `{$tables}`");
if ($list) {
return $this->success(1);
} else {
return $this->error('', "DATABASE_OPTIMIZE_FAIL");
}
} else {
$list = Db::query("OPTIMIZE TABLE `{$tables}`");
if ($list) {
return $this->success(1);
} else {
return $this->error('', "DATABASE_OPTIMIZE_FAIL");
}
}
} else {
return $this->error('', "REQUEST_DATABASE_TABLE");
}
}
private function sql_execute($sql, $is_debug)
{
if (trim($sql) != '') {
$sql = str_replace("\r\n", "\n", $sql);
$sql = str_replace("\r", "\n", $sql);
$sql_array = explode(";\n", $sql);
if (!$is_debug) {
Db::startTrans();
}
try {
foreach ($sql_array as $item) {
if ($is_debug) {
Db::startTrans();
}
$querySql = trim($item);
if ($querySql != '') {
@Db::execute($querySql . ";");
if ($is_debug) {
Db::rollback();
}
}
}
if (!$is_debug) {
Db::commit();
}
return $this->success(1);
} catch (\Exception $e) {
Db::rollback();
return $this->error($e->getMessage());
}
} else {
return $this->error('');
}
}
/**
* 执行sql
*/
public function sqlQuery($sql)
{
$result = $this->sql_execute($sql, false);
return $result;
}
public function yujjia($sql)
{
Db::startTrans();
try {
Db::query($sql);
Db::rollback();
return "1";
} catch (\Exception $e) {
Db::rollback();
return $this->error($e->getMessage());
}
}
/**
* 查询所有表
*/
public function getDatabaseList()
{
$databaseList = Db::query("SHOW TABLE STATUS");
return $databaseList;
}
/**备份数据库语句
* @return string
*/
public function backupSql($tables, $id, $start)
{
}
public function getTableSchemas($table)
{
$mysql = "DROP TABLE IF EXISTS `$table`;\r\n";
$temp_create_table_result = Db::query("show create table `$table`");
$create_table = $temp_create_table_result[0]['Create Table'];
$mysql .= $create_table . ";\r\n";
return $mysql;
}
public function getTableInsertSql($tablename, $start, $size)
{
$data = '';
$tmp = '';
$sql = "SELECT * FROM `{$tablename}` LIMIT {$start}, {$size}";
$result = Db::query($sql);
if (!empty($result)) {
foreach ($result as $row) {
$tmp .= '(';
foreach ($row as $k => $v) {
$value = str_replace(array('\\', "\0", "\n", "\r", "'", '"', "\x1a"), array('\\\\', '\\0', '\\n', '\\r', "\\'", '\\"', '\\Z'), $v);
$tmp .= "'" . $value . "',";
}
$tmp = rtrim($tmp, ',');
$tmp .= "),\n";
}
$tmp = rtrim($tmp, ",\n");
$data .= "INSERT INTO `{$tablename}` VALUES \n{$tmp};\n";
$datas = array(
'data' => $data,
'result' => $result,
);
return $datas;
} else {
return false;
}
}
/**
* 格式化字节大小
*
* @param number $size
* 字节数
* @param string $delimiter
* 数字和单位分隔符
* @return string 格式化后的带单位的大小
* @author
*
*/
public function format_bytes($size, $delimiter = '')
{
$units = array(
'B',
'KB',
'MB',
'GB',
'TB',
'PB'
);
for ($i = 0; $size >= 1024 && $i < 5; $i++)
$size /= 1024;
return round($size, 2) . $delimiter . $units[$i];
}
/**
* 多维数组排序
*/
public function my_array_multisort($data, $sort_order_field, $sort_order = SORT_DESC, $sort_type = SORT_NUMERIC)
{
foreach ($data as $val) {
$key_arrays[] = $val[$sort_order_field];
}
array_multisort($key_arrays, $sort_order, $sort_type, $data);
return $data;
}
/***********************************************************SQL结束*********************************************************/
}