* finish task#808.

module/admin/control.php

@@ -116,4 +116,44 @@ class admin extends control
             echo "Repairing TABLE: " . $result->Table . "\t" . $result->Msg_type . ":" . $result->Msg_text . "\n";
         }
     }
+
+    /**
+     * clear data.
+     * 
+     * @access public
+     * @return void
+     */
+    public function clearData()
+    {
+        if(!empty($_POST))
+        {
+            $this->confirmClearData();
+        }
+
+        $this->display();
+    }
+
+    /**
+     * Confirm clear data.
+     * 
+     * @param  string $confirm no|yes
+     * @access public
+     * @return void
+     */
+    public function confirmClearData($confirm = 'no')
+    {
+        if($confirm == 'no')
+        {
+            die(js::confirm($this->lang->admin->confirmClearData, inlink('confirmClearData', "confirm=yes")));
+        }
+        else
+        {
+            $result = $this->admin->clearData();
+            if($result)
+            {
+                die(js::alert($this->lang->admin->clearDataSucceed));
+            }
+            die(js::alert($this->lang->admin->clearDataFailed));
+        }
+    }
 }

module/admin/lang/en.php

@@ -18,6 +18,18 @@ $lang->admin->welcome = 'Welcome to ZenTaoPMS.';
 
 $lang->admin->browseCompany = 'Browse Company';
 
+$lang->admin->clearData        = 'Clear Data';
+$lang->admin->confirmClearData = 'Are you sure to clear data?';
+$lang->admin->clearDataFailed  = 'Failed to clear data!';
+$lang->admin->clearDataSucceed = 'Succeed to clear data!';
+$lang->admin->clearDataDesc    = <<<EOT
+<strong><font color='red'>Clear data is dangerous. Be sure to backup your database and other data files and sure nobody is using pms when importing.</font></strong>\n
+The impact of clearing data:
+1、Clearing data will have no effect on table company,table group,and table groupPriv.
+2、If you have choosed import demo data when installing,then clearing data will delete the item where key equals showDemoUsers on config table, and delete all demo users on user table.
+3、For others tables:clear all data.
+EOT;
+
 $lang->admin->info->caption        = 'ZentaoPMS information';
 $lang->admin->info->version 	   = 'The current version of the system is %s,';
 $lang->admin->info->links          = 'You can visit the following link:';

module/admin/lang/zh-cn.php

@@ -18,6 +18,18 @@ $lang->admin->welcome = '欢迎使用禅道管理软件后台管理系统';
 
 $lang->admin->browseCompany = '浏览公司';
 
+$lang->admin->clearData        = '清除数据';
+$lang->admin->confirmClearData = '您确认要清楚数据吗？';
+$lang->admin->clearDataFailed  = '清除数据失败！';
+$lang->admin->clearDataSucceed = '清除数据成功！';
+$lang->admin->clearDataDesc    = <<<EOT
+<strong><font color='red'>清除数据存在一定的风险，清楚数据之前，我们强烈建议您备份数据库及相应的数据文件，并保证清楚数据的时候，没有其他人进行操作。</font></strong>\n
+清除数据对数据库的影响如下：
+1、清楚数据不会对company, group, groupPriv表进行操作。
+2、如果安装的时候有导入demo数据，则会删除config表key=showDemoUsers的记录，并删除user表中的所有demo用户。
+3、对于其他表则进行全部清除操作。
+EOT;
+
 $lang->admin->info->caption        = '禅道系统信息';
 $lang->admin->info->version        = '当前系统的版本是%s，';
 $lang->admin->info->links          = '您可以访问以下链接：';

module/admin/model.php

@@ -138,4 +138,46 @@ class adminModel extends model
 		$register->email   = $this->app->user->email;
 		return $register;
 	}
+
+    /**
+     * Clear data.
+     * 
+     * @access public
+     * @return void
+     */
+    public function clearData()
+    {
+        $result = $this->dbh->query('SHOW TABLES')->fetchAll();
+        $showDemoUsers = $this->dao->select('value')->from(TABLE_CONFIG)->where('`key`')->eq('showDemoUsers')->fetch();
+        foreach($result as $item) 
+        {
+            $table = current((array)$item); 
+            if(strpos($table, 'company') !== false) continue;
+            if(strpos($table, 'group')   !== false) continue;
+            if(strpos($table, 'user')    !== false) 
+            {
+                if($showDemoUsers)
+                {
+                    $this->dao->delete()->from($table)
+                        ->where('account')->in(array('productManager', 'projectManager', 'testManager', 'dev1', 'dev2', 'dev3', 'tester1', 'tester2', 'tester3'))
+                        ->exec();
+                    if(dao::isError()) return false;
+                }
+                continue;
+            }
+            if(strpos($table, 'config')  !== false)
+            {
+                if($showDemoUsers)
+                {
+                    $this->dao->delete()->from($table)
+                        ->where('`key`')->eq('showDemoUsers')
+                        ->exec();
+                    if(dao::isError()) return false;
+                }
+                continue;
+            }
+            if(!$this->dbh->query("TRUNCATE TABLE `$table`")) return false;
+        }
+        return true;
+    }
 }

module/admin/view/cleardata.html.php

@@ -0,0 +1,21 @@
+<?php
+/**
+ * The view file of admin module of ZenTaoPMS.
+ *
+ * @copyright   Copyright 2009-2012 青岛易软天创网络科技有限公司 (QingDao Nature Easy Soft Network Technology Co,LTD www.cnezsoft.com)
+ * @license     LGPL (http://www.gnu.org/licenses/lgpl.html)
+ * @author      Congzhi Chen <congzhi@cnezsoft.com>
+ * @package     admin
+ * @version     $Id: view.html.php 2568 2012-02-09 06:56:35Z shiyangyangwork@yahoo.cn $
+ * @link        http://www.zentao.net
+ */
+?>
+<?php include '../../common/view/header.html.php';?>
+<form method='post' target='hiddenwin'>
+  <table align='center' class='table-5'>
+    <caption><?php echo $lang->admin->clearData;?></caption>
+    <tr><td><?php echo nl2br($lang->admin->clearDataDesc);?></td></tr>
+    <tr><td class='a-center'><?php echo html::submitButton($lang->admin->clearData) . html::hidden('confirm', 'no');?></td></tr>
+  </table>
+</form>
+<?php include '../../common/view/footer.html.php';?>