136 lines
3.4 KiB
PHP
136 lines
3.4 KiB
PHP
<?php
|
|
/**
|
|
* ownCloud
|
|
*
|
|
* @author Robin Appelman
|
|
* @copyright 2011 Robin Appelman icewind1991@gmail.com
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
|
|
* License as published by the Free Software Foundation; either
|
|
* version 3 of the License, or any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public
|
|
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
require_once 'MDB2/Driver/Function/Common.php';
|
|
|
|
/**
|
|
* MDB2 SQLite driver for the function modules
|
|
*
|
|
* @package MDB2
|
|
* @category Database
|
|
* @author Lukas Smith <smith@pooteeweet.org>
|
|
*/
|
|
class MDB2_Driver_Function_sqlite3 extends MDB2_Driver_Function_Common
|
|
{
|
|
// {{{ constructor
|
|
|
|
/**
|
|
* Constructor
|
|
*/
|
|
function __construct($db_index)
|
|
{
|
|
parent::__construct($db_index);
|
|
// create all sorts of UDFs
|
|
}
|
|
|
|
// {{{ now()
|
|
|
|
/**
|
|
* Return string to call a variable with the current timestamp inside an SQL statement
|
|
* There are three special variables for current date and time.
|
|
*
|
|
* @return string to call a variable with the current timestamp
|
|
* @access public
|
|
*/
|
|
function now($type = 'timestamp')
|
|
{
|
|
switch ($type) {
|
|
case 'time':
|
|
return 'CURRENT_TIME';
|
|
case 'date':
|
|
return 'CURRENT_DATE';
|
|
case 'timestamp':
|
|
default:
|
|
return 'CURRENT_TIMESTAMP';
|
|
}
|
|
}
|
|
|
|
// }}}
|
|
// {{{ unixtimestamp()
|
|
|
|
/**
|
|
* return string to call a function to get the unix timestamp from a iso timestamp
|
|
*
|
|
* @param string $expression
|
|
*
|
|
* @return string to call a variable with the timestamp
|
|
* @access public
|
|
*/
|
|
function unixtimestamp($expression)
|
|
{
|
|
return 'strftime("%s",'. $expression.', "utc")';
|
|
}
|
|
|
|
// }}}
|
|
// {{{ substring()
|
|
|
|
/**
|
|
* return string to call a function to get a substring inside an SQL statement
|
|
*
|
|
* @return string to call a function to get a substring
|
|
* @access public
|
|
*/
|
|
function substring($value, $position = 1, $length = null)
|
|
{
|
|
if (!is_null($length)) {
|
|
return "substr($value, $position, $length)";
|
|
}
|
|
return "substr($value, $position, length($value))";
|
|
}
|
|
|
|
// }}}
|
|
// {{{ random()
|
|
|
|
/**
|
|
* return string to call a function to get random value inside an SQL statement
|
|
*
|
|
* @return return string to generate float between 0 and 1
|
|
* @access public
|
|
*/
|
|
function random()
|
|
{
|
|
return '((RANDOM()+2147483648)/4294967296)';
|
|
}
|
|
|
|
// }}}
|
|
// {{{ replace()
|
|
|
|
/**
|
|
* return string to call a function to get a replacement inside an SQL statement.
|
|
*
|
|
* @return string to call a function to get a replace
|
|
* @access public
|
|
*/
|
|
function replace($str, $from_str, $to_str)
|
|
{
|
|
$db =& $this->getDBInstance();
|
|
if (PEAR::isError($db)) {
|
|
return $db;
|
|
}
|
|
|
|
$error =& $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
|
|
'method not implemented', __FUNCTION__);
|
|
return $error;
|
|
}
|
|
|
|
// }}}
|
|
}
|