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Diffstat (limited to 'program/lib/MDB2/Driver/ibase.php')
| -rwxr-xr-x | program/lib/MDB2/Driver/ibase.php | 1115 |
1 files changed, 0 insertions, 1115 deletions
diff --git a/program/lib/MDB2/Driver/ibase.php b/program/lib/MDB2/Driver/ibase.php deleted file mode 100755 index 260058398..000000000 --- a/program/lib/MDB2/Driver/ibase.php +++ /dev/null @@ -1,1115 +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 | -// | 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: Lorenzo Alberton <l.alberton@quipo.it> | -// +----------------------------------------------------------------------+ -// -// $Id$ - -/** - * MDB2 FireBird/InterBase driver - * - * @package MDB2 - * @category Database - * @author Lorenzo Alberton <l.alberton@quipo.it> - */ -class MDB2_Driver_ibase extends MDB2_Driver_Common -{ - // {{{ properties - var $escape_quotes = "'"; - - var $transaction_id = 0; - - var $query_parameters = array(); - var $query_parameter_values = array(); - - // }}} - // {{{ constructor - - /** - * Constructor - */ - function __construct() - { - parent::__construct(); - - $this->phptype = 'ibase'; - $this->dbsyntax = 'ibase'; - - $this->supported['sequences'] = true; - $this->supported['indexes'] = true; - $this->supported['affected_rows'] = function_exists('ibase_affected_rows'); - $this->supported['summary_functions'] = true; - $this->supported['order_by_text'] = true; - $this->supported['transactions'] = true; - $this->supported['current_id'] = true; - // maybe this needs different handling for ibase and firebird? - $this->supported['limit_queries'] = 'emulated'; - $this->supported['LOBs'] = true; - $this->supported['replace'] = false; - $this->supported['sub_selects'] = true; - $this->supported['auto_increment'] = true; - $this->supported['primary_key'] = true; - - $this->options['database_path'] = ''; - $this->options['database_extension'] = '.gdb'; - $this->options['default_text_field_length'] = 4096; - } - - // }}} - // {{{ errorInfo() - - /** - * This method is used to collect information about an error - * - * @param integer $error - * @return array - * @access public - */ - function errorInfo($error = null) - { - $native_msg = @ibase_errmsg(); - - if (function_exists('ibase_errcode')) { - $native_code = @ibase_errcode(); - } else { - // memo for the interbase php module hackers: we need something similar - // to mysql_errno() to retrieve error codes instead of this ugly hack - if (preg_match('/^([^0-9\-]+)([0-9\-]+)\s+(.*)$/', $native_msg, $m)) { - $native_code = (int)$m[2]; - } else { - $native_code = null; - } - } - if (is_null($error)) { - $error = MDB2_ERROR; - if ($native_code) { - // try to interpret Interbase error code (that's why we need ibase_errno() - // in the interbase module to return the real error code) - switch ($native_code) { - case -204: - if (isset($m[3]) && is_int(strpos($m[3], 'Table unknown'))) { - $errno = MDB2_ERROR_NOSUCHTABLE; - } - break; - default: - static $ecode_map; - if (empty($ecode_map)) { - $ecode_map = array( - -104 => MDB2_ERROR_SYNTAX, - -150 => MDB2_ERROR_ACCESS_VIOLATION, - -151 => MDB2_ERROR_ACCESS_VIOLATION, - -155 => MDB2_ERROR_NOSUCHTABLE, - -157 => MDB2_ERROR_NOSUCHFIELD, - -158 => MDB2_ERROR_VALUE_COUNT_ON_ROW, - -170 => MDB2_ERROR_MISMATCH, - -171 => MDB2_ERROR_MISMATCH, - -172 => MDB2_ERROR_INVALID, - // -204 => // Covers too many errors, need to use regex on msg - -205 => MDB2_ERROR_NOSUCHFIELD, - -206 => MDB2_ERROR_NOSUCHFIELD, - -208 => MDB2_ERROR_INVALID, - -219 => MDB2_ERROR_NOSUCHTABLE, - -297 => MDB2_ERROR_CONSTRAINT, - -303 => MDB2_ERROR_INVALID, - -413 => MDB2_ERROR_INVALID_NUMBER, - -530 => MDB2_ERROR_CONSTRAINT, - -551 => MDB2_ERROR_ACCESS_VIOLATION, - -552 => MDB2_ERROR_ACCESS_VIOLATION, - // -607 => // Covers too many errors, need to use regex on msg - -625 => MDB2_ERROR_CONSTRAINT_NOT_NULL, - -803 => MDB2_ERROR_CONSTRAINT, - -804 => MDB2_ERROR_VALUE_COUNT_ON_ROW, - -904 => MDB2_ERROR_CONNECT_FAILED, - -922 => MDB2_ERROR_NOSUCHDB, - -923 => MDB2_ERROR_CONNECT_FAILED, - -924 => MDB2_ERROR_CONNECT_FAILED - ); - } - if (isset($ecode_map[$native_code])) { - $error = $ecode_map[$native_code]; - } - break; - } - } else { - static $error_regexps; - if (!isset($error_regexps)) { - $error_regexps = array( - '/generator .* is not defined/' - => MDB2_ERROR_SYNTAX, // for compat. w ibase_errcode() - '/table.*(not exist|not found|unknown)/i' - => MDB2_ERROR_NOSUCHTABLE, - '/table .* already exists/i' - => MDB2_ERROR_ALREADY_EXISTS, - '/unsuccessful metadata update .* failed attempt to store duplicate value/i' - => MDB2_ERROR_ALREADY_EXISTS, - '/unsuccessful metadata update .* not found/i' - => MDB2_ERROR_NOT_FOUND, - '/validation error for column .* value "\*\*\* null/i' - => MDB2_ERROR_CONSTRAINT_NOT_NULL, - '/violation of [\w ]+ constraint/i' - => MDB2_ERROR_CONSTRAINT, - '/conversion error from string/i' - => MDB2_ERROR_INVALID_NUMBER, - '/no permission for/i' - => MDB2_ERROR_ACCESS_VIOLATION, - '/arithmetic exception, numeric overflow, or string truncation/i' - => MDB2_ERROR_INVALID, - ); - } - foreach ($error_regexps as $regexp => $code) { - if (preg_match($regexp, $native_msg, $m)) { - $error = $code; - break; - } - } - } - } - return array($error, $native_code, $native_msg); - } - - // }}} - // {{{ 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'); - } - $result = ibase_trans(); - if (!$result) { - return $this->raiseError(MDB2_ERROR, null, null, - 'beginTransaction: could not start a transaction'); - } - $this->transaction_id = $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 $this->raiseError(MDB2_ERROR, null, null, - 'commit: transaction changes are being auto committed'); - } - if (!ibase_commit($this->transaction_id)) { - return $this->raiseError(MDB2_ERROR, null, null, - 'commit: could not commit a transaction'); - } - $this->in_transaction = false; - //$this->transaction_id = 0; - 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 $this->raiseError(MDB2_ERROR, null, null, - 'rollback: transactions can not be rolled back when changes are auto committed'); - } - if ($this->transaction_id && !ibase_rollback($this->transaction_id)) { - return $this->raiseError(MDB2_ERROR, null, null, - 'rollback: Could not rollback a pending transaction: '.ibase_errmsg()); - } - $this->in_transaction = false; - $this->transaction_id = 0; - return MDB2_OK; - } - - // }}} - // {{{ getDatabaseFile() - - /** - * Builds the string with path+dbname+extension - * - * @return string full database path+file - * @access protected - */ - function _getDatabaseFile($database_name) - { - if ($database_name == '') { - return $database_name; - } - return $this->options['database_path'].$database_name.$this->options['database_extension']; - } - - // }}} - // {{{ _doConnect() - - /** - * Does the grunt work of connecting to the database - * - * @return mixed connection resource on success, MDB2 Error Object on failure - * @access protected - */ - function _doConnect($database_name, $persistent = false) - { - $user = $this->dsn['username']; - $pw = $this->dsn['password']; - $dbhost = $this->dsn['hostspec'] ? - ($this->dsn['hostspec'].':'.$database_name) : $database_name; - - $params = array(); - $params[] = $dbhost; - $params[] = !empty($user) ? $user : null; - $params[] = !empty($pw) ? $pw : null; - $params[] = isset($this->dsn['charset']) ? $this->dsn['charset'] : null; - $params[] = isset($this->dsn['buffers']) ? $this->dsn['buffers'] : null; - $params[] = isset($this->dsn['dialect']) ? $this->dsn['dialect'] : null; - $params[] = isset($this->dsn['role']) ? $this->dsn['role'] : null; - - $connect_function = $persistent ? 'ibase_pconnect' : 'ibase_connect'; - - $connection = @call_user_func_array($connect_function, $params); - if ($connection <= 0) { - return $this->raiseError(MDB2_ERROR_CONNECT_FAILED); - } - if (function_exists('ibase_timefmt')) { - @ibase_timefmt("%Y-%m-%d %H:%M:%S", IBASE_TIMESTAMP); - @ibase_timefmt("%Y-%m-%d", IBASE_DATE); - } else { - @ini_set("ibase.timestampformat", "%Y-%m-%d %H:%M:%S"); - //@ini_set("ibase.timeformat", "%H:%M:%S"); - @ini_set("ibase.dateformat", "%Y-%m-%d"); - } - - return $connection; - } - - // }}} - // {{{ connect() - - /** - * Connect to the database - * - * @return true on success, MDB2 Error Object on failure - * @access public - */ - function connect() - { - $database_file = $this->_getDatabaseFile($this->database_name); - if (is_resource($this->connection)) { - if (count(array_diff($this->connected_dsn, $this->dsn)) == 0 - && $this->connected_database_name == $database_file - && $this->opened_persistent == $this->options['persistent'] - ) { - return MDB2_OK; - } - $this->disconnect(false); - } - - if (!PEAR::loadExtension('interbase')) { - return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null, - 'connect: extension '.$this->phptype.' is not compiled into PHP'); - } - - if (!empty($this->database_name)) { - $connection = $this->_doConnect($database_file, $this->options['persistent']); - if (PEAR::isError($connection)) { - return $connection; - } - $this->connection =& $connection; - $this->connected_dsn = $this->dsn; - $this->connected_database_name = $database_file; - $this->opened_persistent = $this->options['persistent']; - $this->dbsyntax = $this->dsn['dbsyntax'] ? $this->dsn['dbsyntax'] : $this->phptype; - } - return MDB2_OK; - } - - // }}} - // {{{ disconnect() - - /** - * Log out and disconnect from the database. - * - * @return mixed true on success, false if not connected and error - * object on error - * @access public - */ - function disconnect($force = true) - { - if (is_resource($this->connection)) { - if (!$this->opened_persistent || $force) { - @ibase_close($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($connection)) { - if ($this->in_transaction) { - $connection = $this->transaction_id; - } else { - $err = $this->connect(); - if (PEAR::isError($err)) { - return $err; - } - $connection = $this->connection; - } - } - $result = ibase_query($connection, $query); - - if ($result === false) { - return $this->raiseError(); - } - - if ($isManip) { - //return $result; - return (function_exists('ibase_affected_rows') ? ibase_affected_rows($connection) : 0); - } - 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 && $this->dsn['dbsyntax'] == 'firebird') { - $query = preg_replace('/^([\s(])*SELECT(?!\s*FIRST\s*\d+)/i', - "SELECT FIRST $limit SKIP $offset", $query); - } - return $query; - } - - // }}} - // {{{ prepare() - - /** - * Prepares a query for multiple execution with execute(). - * With some database backends, this is emulated. - * prepare() requires a generic query as string like - * 'INSERT INTO numbers VALUES(?,?)' or - * 'INSERT INTO numbers VALUES(:foo,:bar)'. - * The ? and :[a-zA-Z] and are placeholders which can be set using - * bindParam() and the query can be send off using the execute() method. - * - * @param string $query the query to prepare - * @param mixed $types array that contains the types of the placeholders - * @param mixed $result_types array that contains the types of the columns in - * the result set - * @return mixed resource handle for the prepared query on success, a MDB2 - * error on failure - * @access public - * @see bindParam, execute - */ - function &prepare($query, $types = null, $result_types = null) - { - $this->debug($query, 'prepare'); - $placeholder_type_guess = $placeholder_type = null; - $question = '?'; - $colon = ':'; - $position = 0; - while ($position < strlen($query)) { - $q_position = strpos($query, $question, $position); - $c_position = strpos($query, $colon, $position); - if ($q_position && $c_position) { - $p_position = min($q_position, $c_position); - } elseif ($q_position) { - $p_position = $q_position; - } elseif ($c_position) { - $p_position = $c_position; - } else { - break; - } - if (is_null($placeholder_type)) { - $placeholder_type_guess = $query[$p_position]; - } - if (is_int($quote = strpos($query, "'", $position)) && $quote < $p_position) { - if (!is_int($end_quote = strpos($query, "'", $quote + 1))) { - $err =& $this->raiseError(MDB2_ERROR_SYNTAX, null, null, - 'prepare: query with an unterminated text string specified'); - return $err; - } - switch ($this->escape_quotes) { - case '': - case "'": - $position = $end_quote + 1; - break; - default: - if ($end_quote == $quote + 1) { - $position = $end_quote + 1; - } else { - if ($query[$end_quote-1] == $this->escape_quotes) { - $position = $end_quote; - } else { - $position = $end_quote + 1; - } - } - break; - } - } elseif ($query[$position] == $placeholder_type_guess) { - if ($placeholder_type_guess == '?') { - break; - } - if (is_null($placeholder_type)) { - $placeholder_type = $query[$p_position]; - $question = $colon = $placeholder_type; - } - $name = preg_replace('/^.{'.($position+1).'}([a-z0-9_]+).*$/si', '\\1', $query); - if ($name === '') { - $err =& $this->raiseError(MDB2_ERROR_SYNTAX, null, null, - 'prepare: named parameter with an empty name'); - return $err; - } - $query = substr_replace($query, '?', $position, strlen($name)+1); - $position = $p_position + 1; - } else { - $position = $p_position; - } - } - $connection = ($this->in_transaction ? $this->transaction_id : $this->connection); - $statement = ibase_prepare($connection, $query); - - $class_name = 'MDB2_Statement_'.$this->phptype; - $obj =& new $class_name($this, $statement, $query, $types, $result_types, $this->row_limit, $this->row_offset); - return $obj; - } - - // }}} - // {{{ 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); - $query = 'SELECT GEN_ID('.strtoupper($sequence_name).', 1) as the_value FROM RDB$DATABASE'; - $this->expectError('*'); - $result = $this->queryOne($query, 'integer'); - $this->popExpect(); - if (PEAR::isError($result)) { - if ($ondemand) { - $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 could not be created'); - } else { - // First ID of a newly created sequence is 1 - // return 1; - // BUT generators are not always reset, so return the actual value - return $this->currID($seq_name); - } - } - } - return $result; - } - - // }}} - // {{{ currID() - - /** - * returns the current id of a sequence - * - * @param string $seq_name name of the sequence - * @return mixed MDB2 Error Object or id - * @access public - */ - function currID($seq_name) - { - $sequence_name = $this->getSequenceName($seq_name); - $query = 'SELECT GEN_ID('.strtoupper($sequence_name).', 0) as the_value FROM RDB$DATABASE'; - $value = @$this->queryOne($query); - if (PEAR::isError($value)) { - return $this->raiseError(MDB2_ERROR, null, null, - 'currID: Unable to select from ' . $seq_name) ; - } - if (!is_numeric($value)) { - return $this->raiseError(MDB2_ERROR, null, null, - 'currID: could not find value in sequence table'); - } - return $value; - } - - // }}} -} - -class MDB2_Result_ibase 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->db->dsn['dbsyntax'] == 'firebird') { - return true; - } - 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(@ibase_fetch_row($this->result))) { - $this->offset_count = $this->offset; - return false; - } - } - } - return true; - } - - // }}} - // {{{ 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->result === true) { - //query successfully executed, but without results... - $null = null; - return $null; - } - if (!$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) { - $row = @ibase_fetch_assoc($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 { - $row = @ibase_fetch_row($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 $null; - } - if (($mode = ($this->db->options['portability'] & MDB2_PORTABILITY_RTRIM) - + ($this->db->options['portability'] & MDB2_PORTABILITY_EMPTY_TO_NULL)) - ) { - $this->db->_fixResultArrayValues($row, $mode); - } - if (!empty($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. - * - * @return mixed associative array variable - * that holds 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. - * @access private - */ - function _getColumnNames() - { - $columns = array(); - $numcols = $this->numCols(); - if (PEAR::isError($numcols)) { - return $numcols; - } - for ($column = 0; $column < $numcols; $column++) { - $column_info = @ibase_field_info($this->result, $column); - $columns[$column_info['alias']] = $column; - } - if ($this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) { - $columns = array_change_key_case($columns, $this->db->options['field_case']); - } - return $columns; - } - - // }}} - // {{{ numCols() - - /** - * Count the number of columns returned by the DBMS in a query result. - * - * @return mixed integer value with the number of columns, a MDB2 error - * on failure - * @access public - */ - function numCols() - { - if ($this->result === true) { - //query successfully executed, but without results... - return 0; - } - - if (!is_resource($this->result)) { - return $this->db->raiseError('numCols(): not a valid ibase resource'); - } - $cols = @ibase_num_fields($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; - } - - // }}} - // {{{ free() - - /** - * Free the internal resources associated with $result. - * - * @return boolean true on success, false if $result is invalid - * @access public - */ - function free() - { - if (is_resource($this->result)) { - $free = @ibase_free_result($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_ibase extends MDB2_Result_ibase -{ - // {{{ class vars - - var $buffer; - var $buffer_rownum = - 1; - - // }}} - // {{{ _fillBuffer() - - /** - * Fill the row buffer - * - * @param int $rownum row number upto which the buffer should be filled - * if the row number is null all rows are ready into the buffer - * @return boolean true on success, false on failure - * @access protected - */ - function _fillBuffer($rownum = null) - { - if (isset($this->buffer) && is_array($this->buffer)) { - if (is_null($rownum)) { - if (!end($this->buffer)) { - return false; - } - } elseif (isset($this->buffer[$rownum])) { - return (bool) $this->buffer[$rownum]; - } - } - - if (!$this->_skipLimitOffset()) { - return false; - } - - $buffer = true; - while ((is_null($rownum) || $this->buffer_rownum < $rownum) - && (!$this->limit || $this->buffer_rownum < $this->limit) - && ($buffer = @ibase_fetch_row($this->result)) - ) { - ++$this->buffer_rownum; - $this->buffer[$this->buffer_rownum] = $buffer; - } - - if (!$buffer) { - ++$this->buffer_rownum; - $this->buffer[$this->buffer_rownum] = false; - return false; - } elseif ($this->limit && $this->buffer_rownum >= $this->limit) { - ++$this->buffer_rownum; - $this->buffer[$this->buffer_rownum] = false; - } - return true; - } - - // }}} - // {{{ 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->result === true) { - //query successfully executed, but without results... - $null = null; - return $null; - } - if (is_null($this->result)) { - $err =& $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, - 'fetchRow: resultset has already been freed'); - return $err; - } - if (!is_null($rownum)) { - $seek = $this->seek($rownum); - if (PEAR::isError($seek)) { - return $seek; - } - } - $target_rownum = $this->rownum + 1; - if ($fetchmode == MDB2_FETCHMODE_DEFAULT) { - $fetchmode = $this->db->fetchmode; - } - if (!$this->_fillBuffer($target_rownum)) { - $null = null; - return $null; - } - $row = $this->buffer[$target_rownum]; - if ($fetchmode & MDB2_FETCHMODE_ASSOC) { - $column_names = $this->getColumnNames(); - foreach ($column_names as $name => $i) { - $column_names[$name] = $row[$i]; - } - $row = $column_names; - } - if (($mode = ($this->db->options['portability'] & MDB2_PORTABILITY_RTRIM) - + ($this->db->options['portability'] & MDB2_PORTABILITY_EMPTY_TO_NULL)) - ) { - $this->db->_fixResultArrayValues($row, $mode); - } - if (!empty($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; - } - - // }}} - // {{{ 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 (is_null($this->result)) { - return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, - 'seek: resultset has already been freed'); - } - $this->rownum = $rownum - 1; - return MDB2_OK; - } - - // }}} - // {{{ valid() - - /** - * check if the end of the result set has been reached - * - * @return mixed true or false on sucess, a MDB2 error on failure - * @access public - */ - function valid() - { - if (is_null($this->result)) { - return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, - 'valid: resultset has already been freed'); - } - if ($this->_fillBuffer($this->rownum + 1)) { - return true; - } - return false; - } - - // }}} - // {{{ numRows() - - /** - * returns the number of rows in a result object - * - * @return mixed MDB2 Error Object or the number of rows - * @access public - */ - function numRows() - { - if (is_null($this->result)) { - return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, - 'seek: resultset has already been freed'); - } - $this->_fillBuffer(); - return $this->buffer_rownum; - } - - // }}} - // {{{ free() - - /** - * Free the internal resources associated with $result. - * - * @return boolean true on success, false if $result is invalid - * @access public - */ - function free() - { - $this->buffer = null; - $this->buffer_rownum = null; - $free = parent::free(); - } - - // }}} -} - -class MDB2_Statement_ibase extends MDB2_Statement_Common -{ - // {{{ _execute() - - /** - * Execute a prepared query statement helper method. - * - * @param mixed $result_class string which specifies which result class to use - * @param mixed $result_wrap_class string which specifies which class to wrap results in - * @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure - * @access private - */ - function &_execute($result_class = true, $result_wrap_class = false) - { - $isManip = MDB2::isManip($this->query); - $this->db->last_query = $this->query; - $this->db->debug($this->query, 'execute'); - if ($this->db->getOption('disable_query')) { - if ($isManip) { - $return = 0; - return $return; - } - $null = null; - return $null; - } - - $connected = $this->db->connect(); - if (PEAR::isError($connected)) { - return $connected; - } - $connection = $this->db->in_transaction - ? $this->db->transaction_id : $this->db->connection; - - $parameters = array(0 => $this->statement); - $i = 0; - foreach ($this->values as $parameter => $value) { - $type = array_key_exists($parameter, $this->types) ? $this->types[$parameter] : null; - $parameters[] = $this->db->quote($value, $type, false); - ++$i; - } - - $result = call_user_func_array('ibase_execute', $parameters); - if ($result === false) { - $err =& $this->db->raiseError(); - return $err; - } - - if ($isManip) { - $affected_rows = (function_exists('ibase_affected_rows') ? ibase_affected_rows($connection) : 0); - return $affected_rows; - } - - $result =& $this->db->_wrapResult($result, $this->types, - $result_class, $result_wrap_class, $this->row_limit, $this->row_offset); - return $result; - } - - // }}} - - // }}} - // {{{ free() - - /** - * Release resources allocated for the specified prepared query. - * - * @return mixed MDB2_OK on success, a MDB2 error on failure - * @access public - */ - function free() - { - if (!@ibase_free_query($this->statement)) { - return $this->db->raiseError(); - } - return MDB2_OK; - } -} -?>
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