Subversion-Projekte lars-tiefland.php_share

<?php

/*
 *  $Id: DBOracle.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>.
 */

/**
 * Oracle adapter.
 *
 * @author     David Giffin <david@giffin.org> (Propel)
 * @author     Hans Lellelid <hans@xmpl.org> (Propel)
 * @author     Jon S. Stevens <jon@clearink.com> (Torque)
 * @author     Brett McLaughlin <bmclaugh@algx.net> (Torque)
 * @author     Bill Schneider <bschneider@vecna.com> (Torque)
 * @author     Daniel Rall <dlr@finemaltcoding.com> (Torque)
 * @version    $Revision: 1262 $
 * @package    propel.adapter
 */
class DBOracle extends DBAdapter {

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

        /**
         * This method is used to ignore case.
         *
         * @param      string $in The string whose case to ignore.
         * @return     string The string in a case that can be ignored.
         */
        public function ignoreCase($in)
        {
                return "UPPER(" . $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, $s2)
        {
                return "CONCAT($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($s)
        {
                return "LENGTH($s)";
        }

        /**
         * @see        DBAdapter::applyLimit()
         */
        public function applyLimit(&$sql, $offset, $limit)
        {
                 $sql =
                        'SELECT B.* FROM (  '
                        .  'SELECT A.*, rownum AS PROPEL$ROWNUM FROM (  '
                        . $sql
                        . '  ) A '
                        .  ' ) B WHERE ';

                if ( $offset > 0 ) {
                        $sql                            .= ' B.PROPEL$ROWNUM > ' . $offset;

                        if ( $limit > 0 )
                        {
                                $sql                    .= ' AND B.PROPEL$ROWNUM <= '
                                                                        . ( $offset + $limit );
                        }
                } else {
                        $sql                            .= ' B.PROPEL$ROWNUM <= ' . $limit;
                }
        }

        protected function getIdMethod()
        {
                return DBAdapter::ID_METHOD_SEQUENCE;
        }

        public function getId(PDO $con, $name = null)
        {
                if ($name === null) {
                        throw new PropelException("Unable to fetch next sequence ID without sequence name.");
                }

                $stmt = $con->query("SELECT " . $name . ".nextval FROM dual");
                $row = $stmt->fetch(PDO::FETCH_NUM);

                return $row[0];
        }

        public function random($seed=NULL)
        {
                return 'dbms_random.value';
        }


}