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Diffstat (limited to 'program/lib/MDB2/Driver/mssql.php')
| -rwxr-xr-x | program/lib/MDB2/Driver/mssql.php | 766 |
1 files changed, 0 insertions, 766 deletions
diff --git a/program/lib/MDB2/Driver/mssql.php b/program/lib/MDB2/Driver/mssql.php deleted file mode 100755 index 9134654e6..000000000 --- a/program/lib/MDB2/Driver/mssql.php +++ /dev/null @@ -1,766 +0,0 @@ -<?php -// vim: set et ts=4 sw=4 fdm=marker: -// +----------------------------------------------------------------------+ -// | PHP versions 4 and 5 | -// +----------------------------------------------------------------------+ -// | Copyright (c) 1998-2004 Manuel Lemos, Tomas V.V.Cox, | -// | Stig. S. Bakken, Lukas Smith, Frank M. Kromann | -// | All rights reserved. | -// +----------------------------------------------------------------------+ -// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB | -// | API as well as database abstraction for PHP applications. | -// | This LICENSE is in the BSD license style. | -// | | -// | Redistribution and use in source and binary forms, with or without | -// | modification, are permitted provided that the following conditions | -// | are met: | -// | | -// | Redistributions of source code must retain the above copyright | -// | notice, this list of conditions and the following disclaimer. | -// | | -// | Redistributions in binary form must reproduce the above copyright | -// | notice, this list of conditions and the following disclaimer in the | -// | documentation and/or other materials provided with the distribution. | -// | | -// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, | -// | Lukas Smith nor the names of his contributors may be used to endorse | -// | or promote products derived from this software without specific prior| -// | written permission. | -// | | -// | 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 | -// | REGENTS 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. | -// +----------------------------------------------------------------------+ -// | Author: Frank M. Kromann <frank@kromann.info> | -// +----------------------------------------------------------------------+ -// -// $Id$ -// -// {{{ Class MDB2_Driver_mssql -/** - * MDB2 MSSQL Server driver - * - * @package MDB2 - * @category Database - * @author Frank M. Kromann <frank@kromann.info> - */ -class MDB2_Driver_mssql extends MDB2_Driver_Common -{ - // {{{ properties - var $escape_quotes = "'"; - - // }}} - // {{{ constructor - - /** - * Constructor - */ - function __construct() - { - parent::__construct(); - - $this->phptype = 'mssql'; - $this->dbsyntax = 'mssql'; - - $this->supported['sequences'] = 'emulated'; - $this->supported['indexes'] = true; - $this->supported['affected_rows'] = true; - $this->supported['transactions'] = true; - $this->supported['summary_functions'] = true; - $this->supported['order_by_text'] = true; - $this->supported['current_id'] = 'emulated'; - $this->supported['limit_queries'] = 'emulated'; - $this->supported['LOBs'] = true; - $this->supported['replace'] = 'emulated'; - $this->supported['sub_selects'] = true; - $this->supported['auto_increment'] = true; - $this->supported['primary_key'] = true; - - $this->options['database_device'] = false; - $this->options['database_size'] = false; - } - - // }}} - // {{{ errorInfo() - - /** - * This method is used to collect information about an error - * - * @param integer $error - * @return array - * @access public - */ - function errorInfo($error = null) - { - $native_code = null; - if ($this->connection) { - $result = @mssql_query('select @@ERROR as ErrorCode', $this->connection); - if ($result) { - $native_code = @mssql_result($result, 0, 0); - @mssql_free_result($result); - } - } - $native_msg = @mssql_get_last_message(); - if (is_null($error)) { - static $ecode_map; - if (empty($ecode_map)) { - $ecode_map = array( - 110 => MDB2_ERROR_VALUE_COUNT_ON_ROW, - 155 => MDB2_ERROR_NOSUCHFIELD, - 170 => MDB2_ERROR_SYNTAX, - 207 => MDB2_ERROR_NOSUCHFIELD, - 208 => MDB2_ERROR_NOSUCHTABLE, - 245 => MDB2_ERROR_INVALID_NUMBER, - 515 => MDB2_ERROR_CONSTRAINT_NOT_NULL, - 547 => MDB2_ERROR_CONSTRAINT, - 1913 => MDB2_ERROR_ALREADY_EXISTS, - 2627 => MDB2_ERROR_CONSTRAINT, - 2714 => MDB2_ERROR_ALREADY_EXISTS, - 3701 => MDB2_ERROR_NOSUCHTABLE, - 8134 => MDB2_ERROR_DIVZERO, - ); - } - if (isset($ecode_map[$native_code])) { - if ($native_code == 3701 - && preg_match('/Cannot drop the index/i', $native_msg) - ) { - $error = MDB2_ERROR_NOT_FOUND; - } else { - $error = $ecode_map[$native_code]; - } - } - } - return array($error, $native_code, $native_msg); - } - - // }}} - // {{{ quoteIdentifier() - - /** - * Quote a string so it can be safely used as a table / column name - * - * Quoting style depends on which database driver is being used. - * - * @param string $str identifier name to be quoted - * - * @return string quoted identifier string - * - * @since 1.6.0 - * @access public - */ - function quoteIdentifier($str) - { - return '[' . str_replace(']', ']]', $str) . ']'; - } - - // }}} - // {{{ beginTransaction() - - /** - * Start a transaction. - * - * @return mixed MDB2_OK on success, a MDB2 error on failure - * @access public - */ - function beginTransaction() - { - $this->debug('starting transaction', 'beginTransaction'); - if ($this->in_transaction) { - return MDB2_OK; //nothing to do - } - if (!$this->destructor_registered && $this->opened_persistent) { - $this->destructor_registered = true; - register_shutdown_function('MDB2_closeOpenTransactions'); - } - $result = $this->_doQuery('BEGIN TRANSACTION', true); - if (PEAR::isError($result)) { - return $result; - } - $this->in_transaction = true; - return MDB2_OK; - } - - // }}} - // {{{ commit() - - /** - * Commit the database changes done during a transaction that is in - * progress. - * - * @return mixed MDB2_OK on success, a MDB2 error on failure - * @access public - */ - function commit() - { - $this->debug('commit transaction', 'commit'); - if (!$this->in_transaction) { - return $this->raiseError(MDB2_ERROR, null, null, - 'commit: transaction changes are being auto committed'); - } - $result = $this->_doQuery('COMMIT TRANSACTION', true); - if (PEAR::isError($result)) { - return $result; - } - $this->in_transaction = false; - return MDB2_OK; - } - - // }}} - // {{{ rollback() - - /** - * Cancel any database changes done during a transaction that is in - * progress. - * - * @return mixed MDB2_OK on success, a MDB2 error on failure - * @access public - */ - function rollback() - { - $this->debug('rolling back transaction', 'rollback'); - if (!$this->in_transaction) { - return $this->raiseError(MDB2_ERROR, null, null, - 'rollback: transactions can not be rolled back when changes are auto committed'); - } - $result = $this->_doQuery('ROLLBACK TRANSACTION', true); - if (PEAR::isError($result)) { - return $result; - } - $this->in_transaction = false; - return MDB2_OK; - } - - // }}} - // {{{ connect() - - /** - * Connect to the database - * - * @return true on success, MDB2 Error Object on failure - */ - function connect() - { - if (is_resource($this->connection)) { - if (count(array_diff($this->connected_dsn, $this->dsn)) == 0 - && $this->opened_persistent == $this->options['persistent'] - ) { - return MDB2_OK; - } - $this->disconnect(false); - } - - if (!PEAR::loadExtension($this->phptype)) { - return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null, - 'connect: extension '.$this->phptype.' is not compiled into PHP'); - } - - $params = array( - $this->dsn['hostspec'] ? $this->dsn['hostspec'] : 'localhost', - $this->dsn['username'] ? $this->dsn['username'] : null, - $this->dsn['password'] ? $this->dsn['password'] : null, - ); - if ($this->dsn['port']) { - $params[0].= ((substr(PHP_OS, 0, 3) == 'WIN') ? ',' : ':') - . $this->dsn['port']; - } - - $connect_function = $this->options['persistent'] ? 'mssql_pconnect' : 'mssql_connect'; - - $connection = @call_user_func_array($connect_function, $params); - if ($connection <= 0) { - return $this->raiseError(MDB2_ERROR_CONNECT_FAILED); - } - - $this->connection = $connection; - $this->connected_dsn = $this->dsn; - $this->connected_database_name = ''; - $this->opened_persistent = $this->options['persistent']; - $this->dbsyntax = $this->dsn['dbsyntax'] ? $this->dsn['dbsyntax'] : $this->phptype; - - if ((bool) ini_get('mssql.datetimeconvert')) { - ini_set('mssql.datetimeconvert', '0'); - } - @mssql_query('SET DATEFORMAT ymd', $this->connection); - - return MDB2_OK; - } - - // }}} - // {{{ disconnect() - - /** - * Log out and disconnect from the database. - * - * @return mixed true on success, false if not connected and error - * object on error - * @access public - */ - function disconnect($force = true) - { - if (is_resource($this->connection)) { - if (!$this->opened_persistent || $force) { - @mssql_close($this->connection); - } - $this->connection = 0; - } - return MDB2_OK; - } - - // }}} - // {{{ _doQuery() - - /** - * Execute a query - * @param string $query query - * @param boolean $isManip if the query is a manipulation query - * @param resource $connection - * @param string $database_name - * @return result or error object - * @access protected - */ - function _doQuery($query, $isManip = false, $connection = null, $database_name = null) - { - $this->last_query = $query; - $this->debug($query, 'query'); - if ($this->getOption('disable_query')) { - if ($isManip) { - return 0; - } - return null; - } - - if (is_null($connection)) { - $err = $this->connect(); - if (PEAR::isError($err)) { - return $err; - } - $connection = $this->connection; - } - if (is_null($database_name)) { - $database_name = $this->database_name; - } - - if ($database_name) { - if ($database_name != $this->connected_database_name) { - if (!@mssql_select_db($database_name, $connection)) { - return $this->raiseError(); - } - $this->connected_database_name = $database_name; - } - } - - $result = @mssql_query($query, $connection); - if (!$result) { - return $this->raiseError(); - } - - if ($isManip) { - return @mssql_rows_affected($connection); - } - return $result; - } - - // }}} - // {{{ _modifyQuery() - - /** - * Changes a query string for various DBMS specific reasons - * - * @param string $query query to modify - * @return the new (modified) query - * @access protected - */ - function _modifyQuery($query, $isManip, $limit, $offset) - { - if ($limit > 0) { - $fetch = $offset + $limit; - if (!$isManip) { - return preg_replace('/^([\s(])*SELECT(?!\s*TOP\s*\()/i', - "\\1SELECT TOP $fetch", $query); - } - } - return $query; - } - // }}} - // {{{ _checkSequence - /** - * Checks if there's a sequence that exists. - * - * @param string $seq_name The sequence name to verify. - * @return bool $tableExists The value if the table exists or not - * @access private - */ - function _checkSequence($seq_name) - { - $query = "SELECT * FROM $seq_name"; - $tableExists = $this->_doQuery($query, true); - if (PEAR::isError($tableExists)) { - if ($tableExists->getCode() == MDB2_ERROR_NOSUCHTABLE) { - return 0; - } - } else { - return 1; - } - } - // }}} - // {{{ nextID() - - /** - * returns the next free id of a sequence - * - * @param string $seq_name name of the sequence - * @param boolean $ondemand when true the seqence is - * automatic created, if it - * not exists - * - * @return mixed MDB2 Error Object or id - * @access public - */ - function nextID($seq_name, $ondemand = true) - { - $sequence_name = $this->getSequenceName($seq_name); - if (!$this->_checkSequence($sequence_name)) { - $query = "INSERT INTO $sequence_name (".$this->options['seqcol_name'].") VALUES (0)"; - } else { - $query = "SET IDENTITY_INSERT $sequence_name ON ". - "INSERT INTO $sequence_name (".$this->options['seqcol_name'].") VALUES (0)"; - } - $this->expectError(MDB2_ERROR_NOSUCHTABLE); - $result = $this->_doQuery($query, true); - $this->popExpect(); - if (PEAR::isError($result)) { - if ($ondemand && !$this->_checkSequence($sequence_name)) { - $this->loadModule('Manager'); - // Since we are creating the sequence on demand - // we know the first id = 1 so initialize the - // sequence at 2 - $result = $this->manager->createSequence($seq_name, 2); - if (PEAR::isError($result)) { - return $this->raiseError(MDB2_ERROR, null, null, - 'nextID: on demand sequence '.$seq_name.' could not be created'); - } else { - // First ID of a newly created sequence is 1 - return 1; - } - } - return $result; - } - - // TODO: Make sure that this works. - $value = $this->queryRow("SELECT @@IDENTITY", 'integer'); - if (is_numeric($value)) { - $query = "DELETE FROM $sequence_name WHERE ". - $this->options['seqcol_name']." < $value"; - $result = $this->_doQuery($query, true); - - if (PEAR::isError($result)) { - $this->warnings[] = 'nextID: could not delete previous sequence table values'; - } - } - return $value; - } - // }}} - // {{{ lastInsertID() - /** - * returns the autoincrement ID if supported or $id - * - * @param mixed $id value as returned by getBeforeId() - * @param string $table name of the table into which a new row was inserted - * @return mixed MDB2 Error Object or id - * @access public - */ - function lastInsertID($table = null, $field = null) - { - return $this->queryOne("SELECT @@IDENTITY FROM $table", 'integer'); - } - // }}} -} -// }}} -// {{{ Class MDB2_Result_mssql - -class MDB2_Result_mssql extends MDB2_Result_Common -{ - // {{{ _skipLimitOffset() - - /** - * Skip the first row of a result set. - * - * @param resource $result - * @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure - * @access protected - */ - function _skipLimitOffset() - { - if ($this->limit) { - if ($this->rownum >= $this->limit) { - return false; - } - } - if ($this->offset) { - while ($this->offset_count < $this->offset) { - ++$this->offset_count; - if (!is_array(@mysql_fetch_row($this->result))) { - $this->offset_count = $this->limit; - return false; - } - } - } - return MDB2_OK; - } - - // }}} - // {{{ fetchRow() - - /** - * Fetch a row and insert the data into an existing array. - * - * @param int $fetchmode how the array data should be indexed - * @param int $rownum number of the row where the data can be found - * @return int data array on success, a MDB2 error on failure - * @access public - */ - function &fetchRow($fetchmode = MDB2_FETCHMODE_DEFAULT, $rownum = null) - { - if (!$this->_skipLimitOffset()) { - $null = null; - return $null; - } - if (!is_null($rownum)) { - $seek = $this->seek($rownum); - if (PEAR::isError($seek)) { - return $seek; - } - } - if ($fetchmode == MDB2_FETCHMODE_DEFAULT) { - $fetchmode = $this->db->fetchmode; - } - if ($fetchmode & MDB2_FETCHMODE_ASSOC) { - $row = @mssql_fetch_assoc($this->result); - if (is_array($row) - && $this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE - ) { - $row = array_change_key_case($row, $this->db->options['field_case']); - } - } else { - $row = @mssql_fetch_row($this->result); - } - if (!$row) { - if (is_null($this->result)) { - $err =& $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, - 'fetchRow: resultset has already been freed'); - return $err; - } - $null = null; - return $null; - } - if ($this->db->options['portability'] & MDB2_PORTABILITY_EMPTY_TO_NULL) { - $this->db->_fixResultArrayValues($row, MDB2_PORTABILITY_EMPTY_TO_NULL); - } - if (!empty($this->values)) { - $this->_assignBindColumns($row); - } - if (!empty($this->types)) { - $row = $this->db->datatype->convertResultRow($this->types, $row); - } - if ($fetchmode === MDB2_FETCHMODE_OBJECT) { - $object_class = $this->db->options['fetch_class']; - if ($object_class == 'stdClass') { - $row = (object) $row; - } else { - $row = &new $object_class($row); - } - } - ++$this->rownum; - return $row; - } - - // }}} - // {{{ _getColumnNames() - - /** - * Retrieve the names of columns returned by the DBMS in a query result. - * - * @param resource $result result identifier - * @return mixed an associative array variable - * that will hold the names of columns. The - * indexes of the array are the column names - * mapped to lower case and the values are the - * respective numbers of the columns starting - * from 0. Some DBMS may not return any - * columns when the result set does not - * contain any rows. - * - * a MDB2 error on failure - * @access private - */ - function _getColumnNames() - { - $columns = array(); - $numcols = $this->numCols(); - if (PEAR::isError($numcols)) { - return $numcols; - } - for ($column = 0; $column < $numcols; $column++) { - $column_name = @mssql_field_name($this->result, $column); - $columns[$column_name] = $column; - } - if ($this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) { - $columns = array_change_key_case($columns, $this->db->options['field_case']); - } - return $columns; - } - - // }}} - // {{{ numCols() - - /** - * Count the number of columns returned by the DBMS in a query result. - * - * @return mixed integer value with the number of columns, a MDB2 error - * on failure - * @access public - */ - function numCols() - { - $cols = @mssql_num_fields($this->result); - if (is_null($cols)) { - if (is_null($this->result)) { - return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, - 'numCols: resultset has already been freed'); - } - return $this->db->raiseError(); - } - return $cols; - } - - // }}} - // {{{ nextResult() - - /** - * Move the internal result pointer to the next available result - * Currently not supported - * - * @return true if a result is available otherwise return false - * @access public - */ - function nextResult() - { - if (is_null($this->result)) { - return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, - 'nextResult: resultset has already been freed'); - } - return @mssql_next_result($this->result); - } - - // }}} - // {{{ free() - - /** - * Free the internal resources associated with $result. - * - * @return boolean true on success, false if $result is invalid - * @access public - */ - function free() - { - $free = @mssql_free_result($this->result); - if (!$free) { - if (is_null($this->result)) { - return MDB2_OK; - } - return $this->db->raiseError(); - } - $this->result = null; - return MDB2_OK; - } -} - -class MDB2_BufferedResult_mssql extends MDB2_Result_mssql -{ - // }}} - // {{{ seek() - - /** - * seek to a specific row in a result set - * - * @param int $rownum number of the row where the data can be found - * @return mixed MDB2_OK on success, a MDB2 error on failure - * @access public - */ - function seek($rownum = 0) - { - if ($this->rownum != ($rownum - 1) && !@mssql_data_seek($this->result, $rownum)) { - if (is_null($this->result)) { - return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, - 'seek: resultset has already been freed'); - } - return $this->db->raiseError(MDB2_ERROR_INVALID, null, null, - 'seek: tried to seek to an invalid row number ('.$rownum.')'); - } - $this->rownum = $rownum - 1; - return MDB2_OK; - } - - // {{{ valid() - - /** - * check if the end of the result set has been reached - * - * @return mixed true or false on sucess, a MDB2 error on failure - * @access public - */ - function valid() - { - $numrows = $this->numRows(); - if (PEAR::isError($numrows)) { - return $numrows; - } - return $this->rownum < ($numrows - 1); - } - - // }}} - // {{{ numRows() - - /** - * returns the number of rows in a result object - * - * @return mixed MDB2 Error Object or the number of rows - * @access public - */ - function numRows() - { - $rows = @mssql_num_rows($this->result); - if (is_null($rows)) { - if (is_null($this->result)) { - return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, - 'numRows: resultset has already been freed'); - } - return $this->raiseError(); - } - if ($this->limit) { - $rows -= $this->limit; - if ($rows < 0) { - $rows = 0; - } - } - return $rows; - } -} -// }}} -// {{{ MDB2_Statement_mssql -class MDB2_Statement_mssql extends MDB2_Statement_Common -{ - -} -// }}} - -?> |