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- <?php
- /* vim: set expandtab tabstop=4 shiftwidth=4 foldmethod=marker: */
- // +----------------------------------------------------------------------+
- // | PHP Version 4 |
- // +----------------------------------------------------------------------+
- // | Copyright (c) 1997-2004 The PHP Group |
- // +----------------------------------------------------------------------+
- // | This source file is subject to version 2.02 of the PHP license, |
- // | that is bundled with this package in the file LICENSE, and is |
- // | available at through the world-wide-web at |
- // | http://www.php.net/license/2_02.txt. |
- // | If you did not receive a copy of the PHP license and are unable to |
- // | obtain it through the world-wide-web, please send a note to |
- // | license@php.net so we can mail you a copy immediately. |
- // +----------------------------------------------------------------------+
- // | Author: Frank M. Kromann <frank@frontbase.com> |
- // | Maintainer: Daniel Convissor <danielc@php.net> |
- // +----------------------------------------------------------------------+
- //
- // $Id: fbsql.php,v 1.36 2004/06/24 15:24:56 danielc Exp $
-
-
- // XXX legend:
- //
- // XXX ERRORMSG: The error message from the fbsql function should
- // be registered here.
- //
- // TODO/wishlist:
- // longReadlen
- // binmode
-
-
- require_once 'DB/common.php';
-
- /**
- * Database independent query interface definition for PHP's FrontBase
- * extension.
- *
- * @package DB
- * @version $Id: fbsql.php,v 1.36 2004/06/24 15:24:56 danielc Exp $
- * @category Database
- * @author Frank M. Kromann <frank@frontbase.com>
- */
- class DB_fbsql extends DB_common
- {
- // {{{ properties
-
- var $connection;
- var $phptype, $dbsyntax;
- var $prepare_tokens = array();
- var $prepare_types = array();
- var $num_rows = array();
- var $fetchmode = DB_FETCHMODE_ORDERED; /* Default fetch mode */
-
- // }}}
- // {{{ constructor
-
- /**
- * DB_fbsql constructor.
- *
- * @access public
- */
- function DB_fbsql()
- {
- $this->DB_common();
- $this->phptype = 'fbsql';
- $this->dbsyntax = 'fbsql';
- $this->features = array(
- 'prepare' => false,
- 'pconnect' => true,
- 'transactions' => true,
- 'limit' => 'emulate'
- );
- $this->errorcode_map = array(
- 1004 => DB_ERROR_CANNOT_CREATE,
- 1005 => DB_ERROR_CANNOT_CREATE,
- 1006 => DB_ERROR_CANNOT_CREATE,
- 1007 => DB_ERROR_ALREADY_EXISTS,
- 1008 => DB_ERROR_CANNOT_DROP,
- 1046 => DB_ERROR_NODBSELECTED,
- 1050 => DB_ERROR_ALREADY_EXISTS,
- 1051 => DB_ERROR_NOSUCHTABLE,
- 1054 => DB_ERROR_NOSUCHFIELD,
- 1062 => DB_ERROR_ALREADY_EXISTS,
- 1064 => DB_ERROR_SYNTAX,
- 1100 => DB_ERROR_NOT_LOCKED,
- 1136 => DB_ERROR_VALUE_COUNT_ON_ROW,
- 1146 => DB_ERROR_NOSUCHTABLE,
- );
- }
-
- // }}}
- // {{{ connect()
-
- /**
- * Connect to a database and log in as the specified user.
- *
- * @param $dsn the data source name (see DB::parseDSN for syntax)
- * @param $persistent (optional) whether the connection should
- * be persistent
- * @access public
- * @return int DB_OK on success, a DB error on failure
- */
- function connect($dsninfo, $persistent = false)
- {
- if (!DB::assertExtension('fbsql')) {
- return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
- }
-
- $this->dsn = $dsninfo;
- $dbhost = $dsninfo['hostspec'] ? $dsninfo['hostspec'] : 'localhost';
-
- $php_errormsg = '';
- $connect_function = $persistent ? 'fbsql_pconnect' : 'fbsql_connect';
-
- if ($dbhost && $dsninfo['username'] && $dsninfo['password']) {
- $conn = @$connect_function($dbhost, $dsninfo['username'],
- $dsninfo['password']);
- } elseif ($dbhost && $dsninfo['username']) {
- $conn = @$connect_function($dbhost, $dsninfo['username']);
- } elseif ($dbhost) {
- $conn = @$connect_function($dbhost);
- } else {
- $conn = false;
- }
- if (!$conn) {
- if (empty($php_errormsg)) {
- return $this->raiseError(DB_ERROR_CONNECT_FAILED);
- } else {
- return $this->raiseError(DB_ERROR_CONNECT_FAILED, null, null,
- null, $php_errormsg);
- }
- }
-
- if ($dsninfo['database']) {
- if (!fbsql_select_db($dsninfo['database'], $conn)) {
- return $this->fbsqlRaiseError();
- }
- }
-
- $this->connection = $conn;
- return DB_OK;
- }
-
- // }}}
- // {{{ disconnect()
-
- /**
- * Log out and disconnect from the database.
- *
- * @access public
- *
- * @return bool true on success, false if not connected.
- */
- function disconnect()
- {
- $ret = @fbsql_close($this->connection);
- $this->connection = null;
- return $ret;
- }
-
- // }}}
- // {{{ simpleQuery()
-
- /**
- * Send a query to fbsql and return the results as a fbsql resource
- * identifier.
- *
- * @param the SQL query
- *
- * @access public
- *
- * @return mixed returns a valid fbsql result for successful SELECT
- * queries, DB_OK for other successful queries. A DB error is
- * returned on failure.
- */
- function simpleQuery($query)
- {
- $this->last_query = $query;
- $query = $this->modifyQuery($query);
- $result = @fbsql_query("$query;", $this->connection);
- if (!$result) {
- return $this->fbsqlRaiseError();
- }
- // Determine which queries that should return data, and which
- // should return an error code only.
- if (DB::isManip($query)) {
- return DB_OK;
- }
- $numrows = $this->numrows($result);
- if (is_object($numrows)) {
- return $numrows;
- }
- $this->num_rows[(int)$result] = $numrows;
- return $result;
- }
-
- // }}}
- // {{{ nextResult()
-
- /**
- * Move the internal fbsql result pointer to the next available result
- *
- * @param a valid fbsql result resource
- *
- * @access public
- *
- * @return true if a result is available otherwise return false
- */
- function nextResult($result)
- {
- return @fbsql_next_result($result);
- }
-
- // }}}
- // {{{ fetchInto()
-
- /**
- * Fetch a row and insert the data into an existing array.
- *
- * Formating of the array and the data therein are configurable.
- * See DB_result::fetchInto() for more information.
- *
- * @param resource $result query result identifier
- * @param array $arr (reference) array where data from the row
- * should be placed
- * @param int $fetchmode how the resulting array should be indexed
- * @param int $rownum the row number to fetch
- *
- * @return mixed DB_OK on success, null when end of result set is
- * reached or on failure
- *
- * @see DB_result::fetchInto()
- * @access private
- */
- function fetchInto($result, &$arr, $fetchmode, $rownum=null)
- {
- if ($rownum !== null) {
- if (!@fbsql_data_seek($result, $rownum)) {
- return null;
- }
- }
- if ($fetchmode & DB_FETCHMODE_ASSOC) {
- $arr = @fbsql_fetch_array($result, FBSQL_ASSOC);
- if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) {
- $arr = array_change_key_case($arr, CASE_LOWER);
- }
- } else {
- $arr = @fbsql_fetch_row($result);
- }
- if (!$arr) {
- $errno = @fbsql_errno($this->connection);
- if (!$errno) {
- return null;
- }
- return $this->fbsqlRaiseError($errno);
- }
- if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
- $this->_rtrimArrayValues($arr);
- }
- if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
- $this->_convertNullArrayValuesToEmpty($arr);
- }
- return DB_OK;
- }
-
- // }}}
- // {{{ freeResult()
-
- /**
- * Free the internal resources associated with $result.
- *
- * @param $result fbsql result identifier
- *
- * @access public
- *
- * @return bool true on success, false if $result is invalid
- */
- function freeResult($result)
- {
- return @fbsql_free_result($result);
- }
-
- // }}}
- // {{{ autoCommit()
-
- function autoCommit($onoff=false)
- {
- if ($onoff) {
- $this->query("SET COMMIT TRUE");
- } else {
- $this->query("SET COMMIT FALSE");
- }
- }
-
- // }}}
- // {{{ commit()
-
- function commit()
- {
- @fbsql_commit();
- }
-
- // }}}
- // {{{ rollback()
-
- function rollback()
- {
- @fbsql_rollback();
- }
-
- // }}}
- // {{{ numCols()
-
- /**
- * Get the number of columns in a result set.
- *
- * @param $result fbsql result identifier
- *
- * @access public
- *
- * @return int the number of columns per row in $result
- */
- function numCols($result)
- {
- $cols = @fbsql_num_fields($result);
-
- if (!$cols) {
- return $this->fbsqlRaiseError();
- }
-
- return $cols;
- }
-
- // }}}
- // {{{ numRows()
-
- /**
- * Get the number of rows in a result set.
- *
- * @param $result fbsql result identifier
- *
- * @access public
- *
- * @return int the number of rows in $result
- */
- function numRows($result)
- {
- $rows = @fbsql_num_rows($result);
- if ($rows === null) {
- return $this->fbsqlRaiseError();
- }
- return $rows;
- }
-
- // }}}
- // {{{ affectedRows()
-
- /**
- * Gets the number of rows affected by the data manipulation
- * query. For other queries, this function returns 0.
- *
- * @return number of rows affected by the last query
- */
- function affectedRows()
- {
- if (DB::isManip($this->last_query)) {
- $result = @fbsql_affected_rows($this->connection);
- } else {
- $result = 0;
- }
- return $result;
- }
-
- // }}}
- // {{{ errorNative()
-
- /**
- * Get the native error code of the last error (if any) that
- * occured on the current connection.
- *
- * @access public
- *
- * @return int native fbsql error code
- */
- function errorNative()
- {
- return @fbsql_errno($this->connection);
- }
-
- // }}}
- // {{{ nextId()
-
- /**
- * Returns the next free id in a sequence
- *
- * @param string $seq_name name of the sequence
- * @param boolean $ondemand when true, the seqence is automatically
- * created if it does not exist
- *
- * @return int the next id number in the sequence. DB_Error if problem.
- *
- * @internal
- * @see DB_common::nextID()
- * @access public
- */
- function nextId($seq_name, $ondemand = true)
- {
- $seqname = $this->getSequenceName($seq_name);
- $repeat = 0;
- do {
- $result = $this->query("INSERT INTO ${seqname} (id) VALUES (NULL)");
- if ($ondemand && DB::isError($result) &&
- $result->getCode() == DB_ERROR_NOSUCHTABLE) {
- $repeat = 1;
- $result = $this->createSequence($seq_name);
- if (DB::isError($result)) {
- return $result;
- }
- } else {
- $repeat = 0;
- }
- } while ($repeat);
- if (DB::isError($result)) {
- return $result;
- }
- return @fbsql_insert_id($this->connection);
- }
-
- /**
- * Creates a new sequence
- *
- * @param string $seq_name name of the new sequence
- *
- * @return int DB_OK on success. A DB_Error object is returned if
- * problems arise.
- *
- * @internal
- * @see DB_common::createSequence()
- * @access public
- */
- function createSequence($seq_name)
- {
- $seqname = $this->getSequenceName($seq_name);
- return $this->query("CREATE TABLE ${seqname} ".
- '(id INTEGER UNSIGNED AUTO_INCREMENT NOT NULL,'.
- ' PRIMARY KEY(id))');
- }
-
- // }}}
- // {{{ dropSequence()
-
- /**
- * Deletes a sequence
- *
- * @param string $seq_name name of the sequence to be deleted
- *
- * @return int DB_OK on success. DB_Error if problems.
- *
- * @internal
- * @see DB_common::dropSequence()
- * @access public
- */
- function dropSequence($seq_name)
- {
- $seqname = $this->getSequenceName($seq_name);
- return $this->query("DROP TABLE ${seqname} RESTRICT");
- }
-
- // }}}
- // {{{ modifyQuery()
-
- function modifyQuery($query)
- {
- if ($this->options['portability'] & DB_PORTABILITY_DELETE_COUNT) {
- // "DELETE FROM table" gives 0 affected rows in fbsql.
- // This little hack lets you know how many rows were deleted.
- if (preg_match('/^\s*DELETE\s+FROM\s+(\S+)\s*$/i', $query)) {
- $query = preg_replace('/^\s*DELETE\s+FROM\s+(\S+)\s*$/',
- 'DELETE FROM \1 WHERE 1=1', $query);
- }
- }
- return $query;
- }
-
- // }}}
- // {{{ quoteSmart()
-
- /**
- * Format input so it can be safely used in a query
- *
- * @param mixed $in data to be quoted
- *
- * @return mixed Submitted variable's type = returned value:
- * + null = the string <samp>NULL</samp>
- * + boolean = string <samp>TRUE</samp> or <samp>FALSE</samp>
- * + integer or double = the unquoted number
- * + other (including strings and numeric strings) =
- * the data escaped according to MySQL's settings
- * then encapsulated between single quotes
- *
- * @internal
- */
- function quoteSmart($in)
- {
- if (is_int($in) || is_double($in)) {
- return $in;
- } elseif (is_bool($in)) {
- return $in ? 'TRUE' : 'FALSE';
- } elseif (is_null($in)) {
- return 'NULL';
- } else {
- return "'" . $this->escapeSimple($in) . "'";
- }
- }
-
- // }}}
- // {{{ fbsqlRaiseError()
-
- /**
- * Gather information about an error, then use that info to create a
- * DB error object and finally return that object.
- *
- * @param integer $errno PEAR error number (usually a DB constant) if
- * manually raising an error
- * @return object DB error object
- * @see DB_common::errorCode()
- * @see DB_common::raiseError()
- */
- function fbsqlRaiseError($errno = null)
- {
- if ($errno === null) {
- $errno = $this->errorCode(fbsql_errno($this->connection));
- }
- return $this->raiseError($errno, null, null, null,
- @fbsql_error($this->connection));
- }
-
- // }}}
- // {{{ tableInfo()
-
- /**
- * Returns information about a table or a result set.
- *
- * @param object|string $result DB_result object from a query or a
- * string containing the name of a table
- * @param int $mode a valid tableInfo mode
- * @return array an associative array with the information requested
- * or an error object if something is wrong
- * @access public
- * @internal
- * @see DB_common::tableInfo()
- */
- function tableInfo($result, $mode = null) {
- if (isset($result->result)) {
- /*
- * Probably received a result object.
- * Extract the result resource identifier.
- */
- $id = $result->result;
- $got_string = false;
- } elseif (is_string($result)) {
- /*
- * Probably received a table name.
- * Create a result resource identifier.
- */
- $id = @fbsql_list_fields($this->dsn['database'],
- $result, $this->connection);
- $got_string = true;
- } else {
- /*
- * Probably received a result resource identifier.
- * Copy it.
- * Deprecated. Here for compatibility only.
- */
- $id = $result;
- $got_string = false;
- }
-
- if (!is_resource($id)) {
- return $this->fbsqlRaiseError(DB_ERROR_NEED_MORE_DATA);
- }
-
- if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
- $case_func = 'strtolower';
- } else {
- $case_func = 'strval';
- }
-
- $count = @fbsql_num_fields($id);
-
- // made this IF due to performance (one if is faster than $count if's)
- if (!$mode) {
- for ($i=0; $i<$count; $i++) {
- $res[$i]['table'] = $case_func(@fbsql_field_table($id, $i));
- $res[$i]['name'] = $case_func(@fbsql_field_name($id, $i));
- $res[$i]['type'] = @fbsql_field_type($id, $i);
- $res[$i]['len'] = @fbsql_field_len($id, $i);
- $res[$i]['flags'] = @fbsql_field_flags($id, $i);
- }
- } else { // full
- $res["num_fields"]= $count;
-
- for ($i=0; $i<$count; $i++) {
- $res[$i]['table'] = $case_func(@fbsql_field_table($id, $i));
- $res[$i]['name'] = $case_func(@fbsql_field_name($id, $i));
- $res[$i]['type'] = @fbsql_field_type($id, $i);
- $res[$i]['len'] = @fbsql_field_len($id, $i);
- $res[$i]['flags'] = @fbsql_field_flags($id, $i);
-
- if ($mode & DB_TABLEINFO_ORDER) {
- $res['order'][$res[$i]['name']] = $i;
- }
- if ($mode & DB_TABLEINFO_ORDERTABLE) {
- $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
- }
- }
- }
-
- // free the result only if we were called on a table
- if ($got_string) {
- @fbsql_free_result($id);
- }
- return $res;
- }
-
- // }}}
- // {{{ getSpecialQuery()
-
- /**
- * Returns the query needed to get some backend info
- * @param string $type What kind of info you want to retrieve
- * @return string The SQL query string
- */
- function getSpecialQuery($type)
- {
- switch ($type) {
- case 'tables':
- return 'select "table_name" from information_schema.tables';
- default:
- return null;
- }
- }
-
- // }}}
- }
-
- /*
- * Local variables:
- * tab-width: 4
- * c-basic-offset: 4
- * End:
- */
-
- ?>
-