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Diffstat (limited to 'program/lib/MDB2/Driver/pgsql.php')
| -rwxr-xr-x | program/lib/MDB2/Driver/pgsql.php | 771 |
1 files changed, 0 insertions, 771 deletions
diff --git a/program/lib/MDB2/Driver/pgsql.php b/program/lib/MDB2/Driver/pgsql.php deleted file mode 100755 index 72891b0b6..000000000 --- a/program/lib/MDB2/Driver/pgsql.php +++ /dev/null @@ -1,771 +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: Paul Cooper <pgc@ucecom.com> | -// +----------------------------------------------------------------------+ -// -// $Id$ - -/** - * MDB2 PostGreSQL driver - * - * @package MDB2 - * @category Database - * @author Paul Cooper <pgc@ucecom.com> - */ -class MDB2_Driver_pgsql extends MDB2_Driver_Common -{ - // {{{ properties - var $escape_quotes = "\\"; - - // }}} - // {{{ constructor - - /** - * Constructor - */ - function __construct() - { - parent::__construct(); - - $this->phptype = 'pgsql'; - $this->dbsyntax = 'pgsql'; - - $this->supported['sequences'] = true; - $this->supported['indexes'] = true; - $this->supported['affected_rows'] = true; - $this->supported['summary_functions'] = true; - $this->supported['order_by_text'] = true; - $this->supported['transactions'] = true; - $this->supported['current_id'] = true; - $this->supported['limit_queries'] = true; - $this->supported['LOBs'] = true; - $this->supported['replace'] = 'emulated'; - $this->supported['sub_selects'] = true; - $this->supported['auto_increment'] = 'emulated'; - $this->supported['primary_key'] = true; - } - - // }}} - // {{{ errorInfo() - - /** - * This method is used to collect information about an error - * - * @param integer $error - * @return array - * @access public - */ - function errorInfo($error = null) - { - // Fall back to MDB2_ERROR if there was no mapping. - $error_code = MDB2_ERROR; - - $native_msg = ''; - if (is_resource($error)) { - $native_msg = @pg_result_error($error); - } elseif ($this->connection) { - $native_msg = @pg_last_error($this->connection); - if (!$native_msg && @pg_connection_status($this->connection) === PGSQL_CONNECTION_BAD) { - $native_msg = 'Database connection has been lost.'; - $error_code = MDB2_ERROR_CONNECT_FAILED; - } - } - - static $error_regexps; - if (empty($error_regexps)) { - $error_regexps = array( - '/column .* (of relation .*)?does not exist/i' - => MDB2_ERROR_NOSUCHFIELD, - '/(relation|sequence|table).*does not exist|class .* not found/i' - => MDB2_ERROR_NOSUCHTABLE, - '/index .* does not exist/' - => MDB2_ERROR_NOT_FOUND, - '/relation .* already exists/i' - => MDB2_ERROR_ALREADY_EXISTS, - '/(divide|division) by zero$/i' - => MDB2_ERROR_DIVZERO, - '/pg_atoi: error in .*: can\'t parse /i' - => MDB2_ERROR_INVALID_NUMBER, - '/invalid input syntax for( type)? (integer|numeric)/i' - => MDB2_ERROR_INVALID_NUMBER, - '/value .* is out of range for type \w*int/i' - => MDB2_ERROR_INVALID_NUMBER, - '/integer out of range/i' - => MDB2_ERROR_INVALID_NUMBER, - '/value too long for type character/i' - => MDB2_ERROR_INVALID, - '/attribute .* not found|relation .* does not have attribute/i' - => MDB2_ERROR_NOSUCHFIELD, - '/column .* specified in USING clause does not exist in (left|right) table/i' - => MDB2_ERROR_NOSUCHFIELD, - '/parser: parse error at or near/i' - => MDB2_ERROR_SYNTAX, - '/syntax error at/' - => MDB2_ERROR_SYNTAX, - '/column reference .* is ambiguous/i' - => MDB2_ERROR_SYNTAX, - '/permission denied/' - => MDB2_ERROR_ACCESS_VIOLATION, - '/violates not-null constraint/' - => MDB2_ERROR_CONSTRAINT_NOT_NULL, - '/violates [\w ]+ constraint/' - => MDB2_ERROR_CONSTRAINT, - '/referential integrity violation/' - => MDB2_ERROR_CONSTRAINT, - '/more expressions than target columns/i' - => MDB2_ERROR_VALUE_COUNT_ON_ROW, - ); - } - foreach ($error_regexps as $regexp => $code) { - if (preg_match($regexp, $native_msg)) { - $error_code = $code; - break; - } - } - - return array($error_code, null, $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 = $this->_doQuery('BEGIN', true); - if (PEAR::isError($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 = $this->_doQuery('COMMIT', true); - if (PEAR::isError($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 = $this->_doQuery('ROLLBACK', true); - if (PEAR::isError($result)) { - return $result; - } - $this->in_transaction = false; - return MDB2_OK; - } - - // }}} - // {{{ _doConnect() - - /** - * Does the grunt work of connecting to the database - * - * @return mixed connection resource on success, MDB2 Error Object on failure - * @access protected - **/ - function _doConnect($database_name, $persistent = false) - { - if ($database_name == '') { - $database_name = 'template1'; - } - - $protocol = $this->dsn['protocol'] ? $this->dsn['protocol'] : 'tcp'; - - $params = array(''); - if ($protocol == 'tcp') { - if ($this->dsn['hostspec']) { - $params[0].= 'host=' . $this->dsn['hostspec']; - } - if ($this->dsn['port']) { - $params[0].= ' port=' . $this->dsn['port']; - } - } elseif ($protocol == 'unix') { - // Allow for pg socket in non-standard locations. - if ($this->dsn['socket']) { - $params[0].= 'host=' . $this->dsn['socket']; - } - if ($this->dsn['port']) { - $params[0].= ' port=' . $this->dsn['port']; - } - } - if ($database_name) { - $params[0].= ' dbname=\'' . addslashes($database_name) . '\''; - } - if ($this->dsn['username']) { - $params[0].= ' user=\'' . addslashes($this->dsn['username']) . '\''; - } - if ($this->dsn['password']) { - $params[0].= ' password=\'' . addslashes($this->dsn['password']) . '\''; - } - if (!empty($this->dsn['options'])) { - $params[0].= ' options=' . $this->dsn['options']; - } - if (!empty($this->dsn['tty'])) { - $params[0].= ' tty=' . $this->dsn['tty']; - } - if (!empty($this->dsn['connect_timeout'])) { - $params[0].= ' connect_timeout=' . $this->dsn['connect_timeout']; - } - if (!empty($this->dsn['sslmode'])) { - $params[0].= ' sslmode=' . $this->dsn['sslmode']; - } - if (!empty($this->dsn['service'])) { - $params[0].= ' service=' . $this->dsn['service']; - } - - if (isset($this->dsn['new_link']) - && ($this->dsn['new_link'] == 'true' || $this->dsn['new_link'] === true)) - { - if (version_compare(phpversion(), '4.3.0', '>=')) { - $params[] = PGSQL_CONNECT_FORCE_NEW; - } - } - - $connect_function = $persistent ? 'pg_pconnect' : 'pg_connect'; - - putenv('PGDATESTYLE=ISO'); - - @ini_set('track_errors', true); - $php_errormsg = ''; - $connection = @call_user_func_array($connect_function, $params); - @ini_restore('track_errors'); - if (!$connection) { - return $this->raiseError(MDB2_ERROR_CONNECT_FAILED, - null, null, strip_tags($php_errormsg)); - } - return $connection; - } - - // }}} - // {{{ connect() - - /** - * Connect to the database - * - * @return true on success, MDB2 Error Object on failure - * @access public - **/ - function connect() - { - if (is_resource($this->connection)) { - if (count(array_diff($this->connected_dsn, $this->dsn)) == 0 - && $this->connected_database_name == $this->database_name - && ($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'); - } - - if ($this->database_name) { - $connection = $this->_doConnect($this->database_name, $this->options['persistent']); - if (PEAR::isError($connection)) { - return $connection; - } - $this->connection = $connection; - $this->connected_dsn = $this->dsn; - $this->connected_database_name = $this->database_name; - $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 || $force) { - @pg_close($this->connection); - } - $this->connection = 0; - } - return MDB2_OK; - } - - // }}} - // {{{ standaloneQuery() - - /** - * execute a query as DBA - * - * @param string $query the SQL query - * @param mixed $types array that contains the types of the columns in - * the result set - * @return mixed MDB2_OK on success, a MDB2 error on failure - * @access public - */ - function &standaloneQuery($query, $types = null) - { - $connection = $this->_doConnect('template1', false); - if (PEAR::isError($connection)) { - $err =& $this->raiseError(MDB2_ERROR_CONNECT_FAILED, null, null, - 'Cannot connect to template1'); - return $err; - } - - $isManip = MDB2::isManip($query); - $offset = $this->row_offset; - $limit = $this->row_limit; - $this->row_offset = $this->row_limit = 0; - $query = $this->_modifyQuery($query, $isManip, $limit, $offset); - - $result = $this->_doQuery($query, $isManip, $connection, false); - @pg_close($connection); - if (PEAR::isError($result)) { - return $result; - } - - if ($isManip) { - return $result; - } - - $result =& $this->_wrapResult($result, $types, true, false, $limit, $offset); - return $result; - } - - // }}} - // {{{ _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 ($this->options['disable_query']) { - if ($isManip) { - return 0; - } - return null; - } - - if (is_null($connection)) { - $err = $this->connect(); - if (PEAR::isError($err)) { - return $err; - } - $connection = $this->connection; - } - - $result = @pg_query($connection, $query); - if (!$result) { - return $this->raiseError(); - } - - if ($isManip) { - return @pg_affected_rows($result); - } elseif (!preg_match('/^\s*\(*\s*(SELECT|EXPLAIN|FETCH|SHOW)\s/si', $query)) { - return 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 - && !preg_match('/LIMIT\s*\d(\s*(,|OFFSET)\s*\d+)?/i', $query) - ) { - $query = rtrim($query); - if (substr($query, -1) == ';') { - $query = substr($query, 0, -1); - } - if ($isManip) { - $manip = preg_replace('/^(DELETE FROM|UPDATE).*$/', '\\1', $query); - $from = $match[2]; - $where = $match[3]; - $query = $manip.' '.$from.' WHERE ctid=(SELECT ctid FROM '.$from.' '.$where.' LIMIT '.$limit.')'; - } else { - $query.= " LIMIT $limit OFFSET $offset"; - } - } - return $query; - } - - // }}} - // {{{ 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); - $query = "SELECT NEXTVAL('$sequence_name')"; - $this->expectError(MDB2_ERROR_NOSUCHTABLE); - $result = $this->queryOne($query, 'integer'); - $this->popExpect(); - if (PEAR::isError($result)) { - if ($ondemand && $result->getCode() == MDB2_ERROR_NOSUCHTABLE) { - $this->loadModule('Manager'); - $result = $this->manager->createSequence($seq_name, 1); - if (PEAR::isError($result)) { - return $this->raiseError(MDB2_ERROR, null, null, - 'nextID: on demand sequence could not be created'); - } - return $this->nextId($seq_name, false); - } - } - 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); - return $this->queryOne("SELECT last_value FROM $sequence_name", 'integer'); - } -} - -class MDB2_Result_pgsql extends MDB2_Result_Common -{ - // }}} - // {{{ 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, $rownum = null) - { - if (!is_null($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) { - $row = @pg_fetch_array($this->result, null, PGSQL_ASSOC); - if (is_array($row) - && $this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE - ) { - $row = array_change_key_case($row, $this->db->options['field_case']); - } - } else { - $row = @pg_fetch_row($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. - * - * @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++) { - $column_name = @pg_field_name($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. - * - * @access public - * @return mixed integer value with the number of columns, a MDB2 error - * on failure - */ - function numCols() - { - $cols = @pg_num_fields($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() - { - $free = @pg_free_result($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_pgsql extends MDB2_Result_pgsql -{ - // {{{ 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) && !@pg_result_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() - { - $rows = @pg_num_rows($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(); - } - return $rows; - } -} - -class MDB2_Statement_pgsql extends MDB2_Statement_Common -{ - -} -?>
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