105 lines
3.6 KiB
PHP
105 lines
3.6 KiB
PHP
<?php
|
|
/*
|
|
* $Id$
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* This software consists of voluntary contributions made by many individuals
|
|
* and is licensed under the LGPL. For more information, see
|
|
* <http://www.phpdoctrine.com>.
|
|
*/
|
|
Doctrine::autoload('Doctrine_Expression_Driver');
|
|
/**
|
|
* Doctrine_Expression_Sqlite
|
|
*
|
|
* @package Doctrine
|
|
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
|
|
* @category Object Relational Mapping
|
|
* @link www.phpdoctrine.com
|
|
* @since 1.0
|
|
* @version $Revision$
|
|
* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
|
|
*/
|
|
class Doctrine_Expression_Oracle extends Doctrine_Expression_Driver
|
|
{
|
|
/**
|
|
* Returns a series of strings concatinated
|
|
*
|
|
* concat() accepts an arbitrary number of parameters. Each parameter
|
|
* must contain an expression
|
|
*
|
|
* @param string $arg1, $arg2 ... $argN strings that will be concatinated.
|
|
* @return string
|
|
*/
|
|
public function concat()
|
|
{
|
|
$args = func_get_args();
|
|
|
|
return join(' || ' , $args);
|
|
}
|
|
/**
|
|
* return string to call a function to get a substring inside an SQL statement
|
|
*
|
|
* Note: Not SQL92, but common functionality.
|
|
*
|
|
* @param string $value an sql string literal or column name/alias
|
|
* @param integer $position where to start the substring portion
|
|
* @param integer $length the substring portion length
|
|
* @return string SQL substring function with given parameters
|
|
*/
|
|
public function substring($value, $position, $length = null)
|
|
{
|
|
if ($length !== null)
|
|
return "SUBSTR($value, $position, $length)";
|
|
|
|
return "SUBSTR($value, $position)";
|
|
}
|
|
/**
|
|
* Return string to call a variable with the current timestamp inside an SQL statement
|
|
* There are three special variables for current date and time:
|
|
* - CURRENT_TIMESTAMP (date and time, TIMESTAMP type)
|
|
* - CURRENT_DATE (date, DATE type)
|
|
* - CURRENT_TIME (time, TIME type)
|
|
*
|
|
* @return string to call a variable with the current timestamp
|
|
*/
|
|
public function now($type = 'timestamp')
|
|
{
|
|
switch ($type) {
|
|
case 'date':
|
|
case 'time':
|
|
case 'timestamp':
|
|
default:
|
|
return 'TO_CHAR(CURRENT_TIMESTAMP, \'YYYY-MM-DD HH24:MI:SS\')';
|
|
}
|
|
}
|
|
/**
|
|
* random
|
|
*
|
|
* @return string an oracle SQL string that generates a float between 0 and 1
|
|
*/
|
|
public function random()
|
|
{
|
|
return 'dbms_random.value';
|
|
}
|
|
/**
|
|
* Returns global unique identifier
|
|
*
|
|
* @return string to get global unique identifier
|
|
*/
|
|
public function guid()
|
|
{
|
|
return 'SYS_GUID()';
|
|
}
|
|
}
|