Database.php
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<?php
namespace app\admin\controller\general;
use app\common\controller\Backend;
use think\Db;
use think\Debug;
/**
* 数据库管理
*
* @icon fa fa-database
* @remark 可在线进行一些简单的数据库表优化或修复,查看表结构和数据。也可以进行SQL语句的操作
*/
class Database extends Backend
{
/**
* 查看
*/
function index()
{
$tables_data_length = $tables_index_length = $tables_free_length = $tables_data_count = 0;
$tables = $list = [];
$list = Db::query("SHOW TABLES");
foreach ($list as $key => $row)
{
$tables[] = ['name' => reset($row), 'rows' => 0];
}
$data['tables'] = $tables;
/*
$one = Db::table('configvalue')->where('name', 'sql')->find();
$saved_sql = [];
if ($one && $one['content'])
$saved_sql = explode('###', $one['content']);
$data['saved_sql'] = array_values(array_filter($saved_sql));
* */
$data['saved_sql'] = [];
$this->view->assign($data);
return $this->view->fetch();
}
/**
* SQL查询
*/
public function query()
{
$do_action = $this->request->post('do_action');
echo '<style type="text/css">
xmp,body{margin:0;padding:0;line-height:18px;font-size:12px;font-family:"Helvetica Neue", Helvetica, Microsoft Yahei, Hiragino Sans GB, WenQuanYi Micro Hei, sans-serif;}
hr{height:1px;margin:5px 1px;background:#e3e3e3;border:none;}
</style>';
if ($do_action == '')
exit(__('Invalid parameters'));
$tablename = $this->request->post("tablename/a");
if (in_array($do_action, array('doquery', 'optimizeall', 'repairall')))
{
$this->$do_action();
}
else if (count($tablename) == 0)
{
exit(__('Invalid parameters'));
}
else
{
foreach ($tablename as $table)
{
$this->$do_action($table);
echo "<br />";
}
}
}
private function viewinfo($name)
{
$row = Db::query("SHOW CREATE TABLE `{$name}`");
$row = array_values($row[0]);
$info = $row[1];
echo "<xmp>{$info};</xmp>";
}
private function viewdata($name = '')
{
$sqlquery = "SELECT * FROM `{$name}`";
$this->doquery($sqlquery);
}
private function optimize($name = '')
{
if (Db::execute("OPTIMIZE TABLE `{$name}`"))
{
echo __('Optimize table %s done', $name);
}
else
{
echo __('Optimize table %s fail', $name);
}
}
private function optimizeall($name = '')
{
$list = Db::query("SHOW TABLES");
foreach ($list as $key => $row)
{
$name = reset($row);
if (Db::execute("OPTIMIZE TABLE {$name}"))
{
echo __('Optimize table %s done', $name);
}
else
{
echo __('Optimize table %s fail', $name);
}
echo "<br />";
}
}
private function repair($name = '')
{
if (Db::execute("REPAIR TABLE `{$name}`"))
{
echo __('Repair table %s done', $name);
}
else
{
echo __('Repair table %s fail', $name);
}
}
private function repairall($name = '')
{
$list = Db::query("SHOW TABLES");
foreach ($list as $key => $row)
{
$name = reset($row);
if (Db::execute("REPAIR TABLE {$name}"))
{
echo __('Repair table %s done', $name);
}
else
{
echo __('Repair table %s fail', $name);
}
echo "<br />";
}
}
private function doquery($sql = null)
{
$sqlquery = $sql ? $sql : $this->request->post('sqlquery');
if ($sqlquery == '')
exit(__('SQL can not be empty'));
$sqlquery = str_replace("\r", "", $sqlquery);
$sqls = preg_split("/;[ \t]{0,}\n/i", $sqlquery);
$maxreturn = 100;
$r = '';
foreach ($sqls as $key => $val)
{
if (trim($val) == '')
continue;
$val = rtrim($val, ';');
$r .= "SQL:<span style='color:green;'>{$val}</span> ";
if (preg_match("/^(select|explain)(.*)/i ", $val))
{
Debug::remark("begin");
$limit = stripos(strtolower($val), "limit") !== false ? true : false;
$count = Db::execute($val);
if ($count > 0)
{
$resultlist = Db::query($val . (!$limit && $count > $maxreturn ? ' LIMIT ' . $maxreturn : ''));
}
else
{
$resultlist = [];
}
Debug::remark("end");
$time = Debug::getRangeTime('begin', 'end', 4);
$usedseconds = __('Query took %s seconds', $time) . "<br />";
if ($count <= 0)
{
$r .= __('Query returned an empty result');
}
else
{
$r .= (__('Total:%s', $count) . (!$limit && $count > $maxreturn ? ',' . __('Max output:%s', $maxreturn) : ""));
}
$r = $r . ',' . $usedseconds;
$j = 0;
foreach ($resultlist as $m => $n)
{
$j++;
if (!$limit && $j > $maxreturn)
break;
$r .= "<hr/>";
$r .= "<font color='red'>" . __('Row:%s', $j) . "</font><br />";
foreach ($n as $k => $v)
{
$r .= "<font color='blue'>{$k}:</font>{$v}<br/>\r\n";
}
}
}
else
{
Debug::remark("begin");
$count = Db::execute($val);
Debug::remark("end");
$time = Debug::getRangeTime('begin', 'end', 4);
$r .= __('Query affected %s rows and took %s seconds', $count, $time) . "<br />";
}
}
echo $r;
}
}