<?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'); /** * Doctrine_Expression_Mssql * * @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_Mssql extends Doctrine_Expression { /** * 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 * @access public */ public function now($type = 'timestamp') { switch ($type) { case 'time': case 'date': case 'timestamp': default: return 'GETDATE()'; } } /** * return string to call a function to get a substring inside an SQL statement * * @return string to call a function to get a substring */ public function substring($value, $position, $length = null) { if (!is_null($length)) return "SUBSTRING($value, $position, $length)"; return "SUBSTRING($value, $position, LEN($value) - $position + 1)"; } /** * Returns string to concatenate two or more string parameters * * @param string $arg1 * @param string $arg2 * @param string $values... * @return string to concatenate two strings * @access public **/ function concat($arg1, $arg2) { $args = func_get_args(); return '(' . implode(' + ', $args) . ')'; } }