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<?php/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: *//*** The PEAR DB driver for PHP's fbsql extension* for interacting with FrontBase databases** PHP version 5** LICENSE: This source file is subject to version 3.0 of the PHP license* that is available through the world-wide-web at the following URI:* http://www.php.net/license/3_0.txt. If you did not receive a copy of* the PHP License and are unable to obtain it through the web, please* send a note to license@php.net so we can mail you a copy immediately.** @category Database* @package DB* @author Frank M. Kromann <frank@frontbase.com>* @author Daniel Convissor <danielc@php.net>* @copyright 1997-2007 The PHP Group* @license http://www.php.net/license/3_0.txt PHP License 3.0* @version CVS: $Id$* @link http://pear.php.net/package/DB*//*** Obtain the DB_common class so it can be extended from*/require_once 'DB/common.php';/*** The methods PEAR DB uses to interact with PHP's fbsql extension* for interacting with FrontBase databases** These methods overload the ones declared in DB_common.** @category Database* @package DB* @author Frank M. Kromann <frank@frontbase.com>* @author Daniel Convissor <danielc@php.net>* @copyright 1997-2007 The PHP Group* @license http://www.php.net/license/3_0.txt PHP License 3.0* @version Release: 1.9.2* @link http://pear.php.net/package/DB* @since Class functional since Release 1.7.0*/class DB_fbsql extends DB_common{// {{{ properties/*** The DB driver type (mysql, oci8, odbc, etc.)* @var string*/var $phptype = 'fbsql';/*** The database syntax variant to be used (db2, access, etc.), if any* @var string*/var $dbsyntax = 'fbsql';/*** The capabilities of this DB implementation** The 'new_link' element contains the PHP version that first provided* new_link support for this DBMS. Contains false if it's unsupported.** Meaning of the 'limit' element:* + 'emulate' = emulate with fetch row by number* + 'alter' = alter the query* + false = skip rows** @var array*/var $features = array('limit' => 'alter','new_link' => false,'numrows' => true,'pconnect' => true,'prepare' => false,'ssl' => false,'transactions' => true,);/*** A mapping of native error codes to DB error codes* @var array*/var $errorcode_map = array(22 => DB_ERROR_SYNTAX,85 => DB_ERROR_ALREADY_EXISTS,108 => DB_ERROR_SYNTAX,116 => DB_ERROR_NOSUCHTABLE,124 => DB_ERROR_VALUE_COUNT_ON_ROW,215 => DB_ERROR_NOSUCHFIELD,217 => DB_ERROR_INVALID_NUMBER,226 => DB_ERROR_NOSUCHFIELD,231 => DB_ERROR_INVALID,239 => DB_ERROR_TRUNCATED,251 => DB_ERROR_SYNTAX,266 => DB_ERROR_NOT_FOUND,357 => DB_ERROR_CONSTRAINT_NOT_NULL,358 => DB_ERROR_CONSTRAINT,360 => DB_ERROR_CONSTRAINT,361 => DB_ERROR_CONSTRAINT,);/*** The raw database connection created by PHP* @var resource*/var $connection;/*** The DSN information for connecting to a database* @var array*/var $dsn = array();// }}}// {{{ constructor/*** This constructor calls <kbd>parent::__construct()</kbd>** @return void*/function __construct(){parent::__construct();}// }}}// {{{ connect()/*** Connect to the database server, log in and open the database** Don't call this method directly. Use DB::connect() instead.** @param array $dsn the data source name* @param bool $persistent should the connection be persistent?** @return int DB_OK on success. A DB_Error object on failure.*/function connect($dsn, $persistent = false){if (!PEAR::loadExtension('fbsql')) {return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);}$this->dsn = $dsn;if ($dsn['dbsyntax']) {$this->dbsyntax = $dsn['dbsyntax'];}$params = array($dsn['hostspec'] ? $dsn['hostspec'] : 'localhost',$dsn['username'] ? $dsn['username'] : null,$dsn['password'] ? $dsn['password'] : null,);$connect_function = $persistent ? 'fbsql_pconnect' : 'fbsql_connect';$ini = ini_get('track_errors');$php_errormsg = '';if ($ini) {$this->connection = @call_user_func_array($connect_function,$params);} else {@ini_set('track_errors', 1);$this->connection = @call_user_func_array($connect_function,$params);@ini_set('track_errors', $ini);}if (!$this->connection) {return $this->raiseError(DB_ERROR_CONNECT_FAILED,null, null, null,$php_errormsg);}if ($dsn['database']) {if (!@fbsql_select_db($dsn['database'], $this->connection)) {return $this->fbsqlRaiseError();}}return DB_OK;}// }}}// {{{ disconnect()/*** Disconnects from the database server** @return bool TRUE on success, FALSE on failure*/function disconnect(){$ret = @fbsql_close($this->connection);$this->connection = null;return $ret;}// }}}// {{{ simpleQuery()/*** Sends a query to the database server** @param string the SQL query string** @return mixed + a PHP result resrouce for successful SELECT queries* + the DB_OK constant for other successful queries* + a DB_Error object on failure*/function simpleQuery($query){$this->last_query = $query;$query = $this->modifyQuery($query);$result = @fbsql_query("$query;", $this->connection);if (!$result) {return $this->fbsqlRaiseError();}// Determine which queries that should return data, and which// should return an error code only.if ($this->_checkManip($query)) {return DB_OK;}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()/*** Places a row from the result set into the given array** Formating of the array and the data therein are configurable.* See DB_result::fetchInto() for more information.** This method is not meant to be called directly. Use* DB_result::fetchInto() instead. It can't be declared "protected"* because DB_result is a separate object.** @param resource $result the query result resource* @param array $arr the referenced array to put the data in* @param int $fetchmode how the resulting array should be indexed* @param int $rownum the row number to fetch (0 = first row)** @return mixed DB_OK on success, NULL when the end of a result set is* reached or on failure** @see DB_result::fetchInto()*/function fetchInto($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) {return null;}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()/*** Deletes the result set and frees the memory occupied by the result set** This method is not meant to be called directly. Use* DB_result::free() instead. It can't be declared "protected"* because DB_result is a separate object.** @param resource $result PHP's query result resource** @return bool TRUE on success, FALSE if $result is invalid** @see DB_result::free()*/function freeResult($result){return is_resource($result) ? fbsql_free_result($result) : false;}// }}}// {{{ autoCommit()/*** Enables or disables automatic commits** @param bool $onoff true turns it on, false turns it off** @return int DB_OK on success. A DB_Error object if the driver* doesn't support auto-committing transactions.*/function autoCommit($onoff=false){if ($onoff) {$this->query("SET COMMIT TRUE");} else {$this->query("SET COMMIT FALSE");}}// }}}// {{{ commit()/*** Commits the current transaction** @return int DB_OK on success. A DB_Error object on failure.*/function commit(){@fbsql_commit($this->connection);}// }}}// {{{ rollback()/*** Reverts the current transaction** @return int DB_OK on success. A DB_Error object on failure.*/function rollback(){@fbsql_rollback($this->connection);}// }}}// {{{ numCols()/*** Gets the number of columns in a result set** This method is not meant to be called directly. Use* DB_result::numCols() instead. It can't be declared "protected"* because DB_result is a separate object.** @param resource $result PHP's query result resource** @return int the number of columns. A DB_Error object on failure.** @see DB_result::numCols()*/function numCols($result){$cols = @fbsql_num_fields($result);if (!$cols) {return $this->fbsqlRaiseError();}return $cols;}// }}}// {{{ numRows()/*** Gets the number of rows in a result set** This method is not meant to be called directly. Use* DB_result::numRows() instead. It can't be declared "protected"* because DB_result is a separate object.** @param resource $result PHP's query result resource** @return int the number of rows. A DB_Error object on failure.** @see DB_result::numRows()*/function numRows($result){$rows = @fbsql_num_rows($result);if ($rows === null) {return $this->fbsqlRaiseError();}return $rows;}// }}}// {{{ affectedRows()/*** Determines the number of rows affected by a data maniuplation query** 0 is returned for queries that don't manipulate data.** @return int the number of rows. A DB_Error object on failure.*/function affectedRows(){if ($this->_last_query_manip) {$result = @fbsql_affected_rows($this->connection);} else {$result = 0;}return $result;}// }}}// {{{ nextId()/*** Returns the next free id in a sequence** @param string $seq_name name of the sequence* @param boolean $ondemand when true, the seqence is automatically* created if it does not exist** @return int the next id number in the sequence.* A DB_Error object on failure.** @see DB_common::nextID(), DB_common::getSequenceName(),* DB_fbsql::createSequence(), DB_fbsql::dropSequence()*/function nextId($seq_name, $ondemand = true){$seqname = $this->getSequenceName($seq_name);do {$repeat = 0;$this->pushErrorHandling(PEAR_ERROR_RETURN);$result = $this->query('SELECT UNIQUE FROM ' . $seqname);$this->popErrorHandling();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 $this->fbsqlRaiseError();}$result->fetchInto($tmp, DB_FETCHMODE_ORDERED);return $tmp[0];}/*** Creates a new sequence** @param string $seq_name name of the new sequence** @return int DB_OK on success. A DB_Error object on failure.** @see DB_common::createSequence(), DB_common::getSequenceName(),* DB_fbsql::nextID(), DB_fbsql::dropSequence()*/function createSequence($seq_name){$seqname = $this->getSequenceName($seq_name);$res = $this->query('CREATE TABLE ' . $seqname. ' (id INTEGER NOT NULL,'. ' PRIMARY KEY(id))');if ($res) {$res = $this->query('SET UNIQUE = 0 FOR ' . $seqname);}return $res;}// }}}// {{{ dropSequence()/*** Deletes a sequence** @param string $seq_name name of the sequence to be deleted** @return int DB_OK on success. A DB_Error object on failure.** @see DB_common::dropSequence(), DB_common::getSequenceName(),* DB_fbsql::nextID(), DB_fbsql::createSequence()*/function dropSequence($seq_name){return $this->query('DROP TABLE ' . $this->getSequenceName($seq_name). ' RESTRICT');}// }}}// {{{ modifyLimitQuery()/*** Adds LIMIT clauses to a query string according to current DBMS standards** @param string $query the query to modify* @param int $from the row to start to fetching (0 = the first row)* @param int $count the numbers of rows to fetch* @param mixed $params array, string or numeric data to be used in* execution of the statement. Quantity of items* passed must match quantity of placeholders in* query: meaning 1 placeholder for non-array* parameters or 1 placeholder per array element.** @return string the query string with LIMIT clauses added** @access protected*/function modifyLimitQuery($query, $from, $count, $params = array()){if (DB::isManip($query) || $this->_next_query_manip) {return preg_replace('/^([\s(])*SELECT/i',"\\1SELECT TOP($count)", $query);} else {return preg_replace('/([\s(])*SELECT/i',"\\1SELECT TOP($from, $count)", $query);}}// }}}// {{{ quoteBoolean()/*** Formats a boolean value for use within a query in a locale-independent* manner.** @param boolean the boolean value to be quoted.* @return string the quoted string.* @see DB_common::quoteSmart()* @since Method available since release 1.7.8.*/function quoteBoolean($boolean) {return $boolean ? 'TRUE' : 'FALSE';}// }}}// {{{ quoteFloat()/*** Formats a float value for use within a query in a locale-independent* manner.** @param float the float value to be quoted.* @return string the quoted string.* @see DB_common::quoteSmart()* @since Method available since release 1.7.8.*/function quoteFloat($float) {return $this->escapeSimple(str_replace(',', '.', strval(floatval($float))));}// }}}// {{{ fbsqlRaiseError()/*** Produces a DB_Error object regarding the current problem** @param int $errno if the error is being manually raised pass a* DB_ERROR* constant here. If this isn't passed* the error information gathered from the DBMS.** @return object the DB_Error object** @see DB_common::raiseError(),* DB_fbsql::errorNative(), DB_common::errorCode()*/function fbsqlRaiseError($errno = null){if ($errno === null) {$errno = $this->errorCode(fbsql_errno($this->connection));}return $this->raiseError($errno, null, null, null,@fbsql_error($this->connection));}// }}}// {{{ errorNative()/*** Gets the DBMS' native error code produced by the last query** @return int the DBMS' error code*/function errorNative(){return @fbsql_errno($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.* While this also accepts a query result* resource identifier, this behavior is* deprecated.* @param int $mode a valid tableInfo mode** @return array an associative array with the information requested.* A DB_Error object on failure.** @see DB_common::tableInfo()*/function tableInfo($result, $mode = null){if (is_string($result)) {/** Probably received a table name.* Create a result resource identifier.*/$id = @fbsql_list_fields($this->dsn['database'],$result, $this->connection);$got_string = true;} elseif (isset($result->result)) {/** Probably received a result object.* Extract the result resource identifier.*/$id = $result->result;$got_string = false;} 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);$res = array();if ($mode) {$res['num_fields'] = $count;}for ($i = 0; $i < $count; $i++) {$res[$i] = array('table' => $case_func(@fbsql_field_table($id, $i)),'name' => $case_func(@fbsql_field_name($id, $i)),'type' => @fbsql_field_type($id, $i),'len' => @fbsql_field_len($id, $i),'flags' => @fbsql_field_flags($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']] = $i;}}// free the result only if we were called on a tableif ($got_string) {@fbsql_free_result($id);}return $res;}// }}}// {{{ getSpecialQuery()/*** Obtains the query string needed for listing a given type of objects** @param string $type the kind of objects you want to retrieve** @return string the SQL query string or null if the driver doesn't* support the object type requested** @access protected* @see DB_common::getListOf()*/function getSpecialQuery($type){switch ($type) {case 'tables':return 'SELECT "table_name" FROM information_schema.tables'. ' t0, information_schema.schemata t1'. ' WHERE t0.schema_pk=t1.schema_pk AND'. ' "table_type" = \'BASE TABLE\''. ' AND "schema_name" = current_schema';case 'views':return 'SELECT "table_name" FROM information_schema.tables'. ' t0, information_schema.schemata t1'. ' WHERE t0.schema_pk=t1.schema_pk AND'. ' "table_type" = \'VIEW\''. ' AND "schema_name" = current_schema';case 'users':return 'SELECT "user_name" from information_schema.users';case 'functions':return 'SELECT "routine_name" FROM'. ' information_schema.psm_routines'. ' t0, information_schema.schemata t1'. ' WHERE t0.schema_pk=t1.schema_pk'. ' AND "routine_kind"=\'FUNCTION\''. ' AND "schema_name" = current_schema';case 'procedures':return 'SELECT "routine_name" FROM'. ' information_schema.psm_routines'. ' t0, information_schema.schemata t1'. ' WHERE t0.schema_pk=t1.schema_pk'. ' AND "routine_kind"=\'PROCEDURE\''. ' AND "schema_name" = current_schema';default:return null;}}// }}}}/** Local variables:* tab-width: 4* c-basic-offset: 4* End:*/?>