Subversion-Projekte lars-tiefland.php_share

<?php

/*
 *  $Id: DBNone.php 1262 2009-10-26 20:54:39Z francois $
 *
 * 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 please see
 * <http://propel.phpdb.org>.
 */

/**
 * This adapter  is used when you do not have a database installed.
 *
 * @author     Hans Lellelid <hans@xmpl.org> (Propel)
 * @author     Jon S. Stevens <jon@clearink.com> (Torque)
 * @author     Brett McLaughlin <bmclaugh@algx.net> (Torque)
 * @version    $Revision: 1262 $
 * @package    propel.adapter
 */
class DBNone extends DBAdapter {

        /**
         * @see        DBAdapter::initConnection()
         */
        public function initConnection(PDO $con, array $settings)
        {
        }

        /**
         * This method is used to ignore case.
         *
         * @param      in The string to transform to upper case.
         * @return     The upper case string.
         */
        public function toUpperCase($in)
        {
                return $in;
        }

        /**
         * This method is used to ignore case.
         *
         * @param      in The string whose case to ignore.
         * @return     The string in a case that can be ignored.
         */
        public function ignoreCase($in)
        {
                return $in;
        }

        /**
         * Returns SQL which concatenates the second string to the first.
         *
         * @param      string String to concatenate.
         * @param      string String to append.
         * @return     string
         */
        public function concatString($s1, $s2)
        {
                return ($s1 . $s2);
        }

        /**
         * Returns SQL which extracts a substring.
         *
         * @param      string String to extract from.
         * @param      int Offset to start from.
         * @param      int Number of characters to extract.
         * @return     string
         */
        public function subString($s, $pos, $len)
        {
                return substr($s, $pos, $len);
        }

        /**
         * Returns SQL which calculates the length (in chars) of a string.
         *
         * @param      string String to calculate length of.
         * @return     string
         */
        public function strLength($s)
        {
                return strlen($s);
        }
        
        /**
         * Modifies the passed-in SQL to add LIMIT and/or OFFSET.
         */
        public function applyLimit(&$sql, $offset, $limit)
        {               
        }

        /**
         * Gets the SQL string that this adapter uses for getting a random number.
         *
         * @param      mixed $seed (optional) seed value for databases that support this
         */
        public function random($seed = null)
        {
        }
        
}