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Diffstat (limited to 'program/lib/DB/mysql.php')
| -rw-r--r-- | program/lib/DB/mysql.php | 1045 |
1 files changed, 0 insertions, 1045 deletions
diff --git a/program/lib/DB/mysql.php b/program/lib/DB/mysql.php deleted file mode 100644 index 91572e14a..000000000 --- a/program/lib/DB/mysql.php +++ /dev/null @@ -1,1045 +0,0 @@ -<?php - -/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */ - -/** - * The PEAR DB driver for PHP's mysql extension - * for interacting with MySQL databases - * - * PHP versions 4 and 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 Stig Bakken <ssb@php.net> - * @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 mysql extension - * for interacting with MySQL databases - * - * These methods overload the ones declared in DB_common. - * - * @category Database - * @package DB - * @author Stig Bakken <ssb@php.net> - * @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: 1.7.13 - * @link http://pear.php.net/package/DB - */ -class DB_mysql extends DB_common -{ - // {{{ properties - - /** - * The DB driver type (mysql, oci8, odbc, etc.) - * @var string - */ - var $phptype = 'mysql'; - - /** - * The database syntax variant to be used (db2, access, etc.), if any - * @var string - */ - var $dbsyntax = 'mysql'; - - /** - * 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' => '4.2.0', - '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( - 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, - 1022 => DB_ERROR_ALREADY_EXISTS, - 1044 => DB_ERROR_ACCESS_VIOLATION, - 1046 => DB_ERROR_NODBSELECTED, - 1048 => DB_ERROR_CONSTRAINT, - 1049 => DB_ERROR_NOSUCHDB, - 1050 => DB_ERROR_ALREADY_EXISTS, - 1051 => DB_ERROR_NOSUCHTABLE, - 1054 => DB_ERROR_NOSUCHFIELD, - 1061 => DB_ERROR_ALREADY_EXISTS, - 1062 => DB_ERROR_ALREADY_EXISTS, - 1064 => DB_ERROR_SYNTAX, - 1091 => DB_ERROR_NOT_FOUND, - 1100 => DB_ERROR_NOT_LOCKED, - 1136 => DB_ERROR_VALUE_COUNT_ON_ROW, - 1142 => DB_ERROR_ACCESS_VIOLATION, - 1146 => DB_ERROR_NOSUCHTABLE, - 1216 => DB_ERROR_CONSTRAINT, - 1217 => DB_ERROR_CONSTRAINT, - 1356 => DB_ERROR_DIVZERO, - 1451 => DB_ERROR_CONSTRAINT, - 1452 => 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(); - - - /** - * Should data manipulation queries be committed automatically? - * @var bool - * @access private - */ - var $autocommit = true; - - /** - * The quantity of transactions begun - * - * {@internal While this is private, it can't actually be designated - * private in PHP 5 because it is directly accessed in the test suite.}} - * - * @var integer - * @access private - */ - var $transaction_opcount = 0; - - /** - * The database specified in the DSN - * - * It's a fix to allow calls to different databases in the same script. - * - * @var string - * @access private - */ - var $_db = ''; - - - // }}} - // {{{ constructor - - /** - * This constructor calls <kbd>$this->DB_common()</kbd> - * - * @return void - */ - function DB_mysql() - { - $this->DB_common(); - } - - // }}} - // {{{ connect() - - /** - * Connect to the database server, log in and open the database - * - * Don't call this method directly. Use DB::connect() instead. - * - * PEAR DB's mysql driver supports the following extra DSN options: - * + new_link If set to true, causes subsequent calls to connect() - * to return a new connection link instead of the - * existing one. WARNING: this is not portable to - * other DBMS's. Available since PEAR DB 1.7.0. - * + client_flags Any combination of MYSQL_CLIENT_* constants. - * Only used if PHP is at version 4.3.0 or greater. - * Available since PEAR DB 1.7.0. - * - * @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('mysql')) { - return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND); - } - - $this->dsn = $dsn; - if ($dsn['dbsyntax']) { - $this->dbsyntax = $dsn['dbsyntax']; - } - - $params = array(); - if ($dsn['protocol'] && $dsn['protocol'] == 'unix') { - $params[0] = ':' . $dsn['socket']; - } else { - $params[0] = $dsn['hostspec'] ? $dsn['hostspec'] - : 'localhost'; - if ($dsn['port']) { - $params[0] .= ':' . $dsn['port']; - } - } - $params[] = $dsn['username'] ? $dsn['username'] : null; - $params[] = $dsn['password'] ? $dsn['password'] : null; - - if (!$persistent) { - if (isset($dsn['new_link']) - && ($dsn['new_link'] == 'true' || $dsn['new_link'] === true)) - { - $params[] = true; - } else { - $params[] = false; - } - } - if (version_compare(phpversion(), '4.3.0', '>=')) { - $params[] = isset($dsn['client_flags']) - ? $dsn['client_flags'] : null; - } - - $connect_function = $persistent ? 'mysql_pconnect' : 'mysql_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) { - if (($err = @mysql_error()) != '') { - return $this->raiseError(DB_ERROR_CONNECT_FAILED, - null, null, null, - $err); - } else { - return $this->raiseError(DB_ERROR_CONNECT_FAILED, - null, null, null, - $php_errormsg); - } - } - - if ($dsn['database']) { - if (!@mysql_select_db($dsn['database'], $this->connection)) { - return $this->mysqlRaiseError(); - } - $this->_db = $dsn['database']; - } - - return DB_OK; - } - - // }}} - // {{{ disconnect() - - /** - * Disconnects from the database server - * - * @return bool TRUE on success, FALSE on failure - */ - function disconnect() - { - $ret = @mysql_close($this->connection); - $this->connection = null; - return $ret; - } - - // }}} - // {{{ simpleQuery() - - /** - * Sends a query to the database server - * - * Generally uses mysql_query(). If you want to use - * mysql_unbuffered_query() set the "result_buffering" option to 0 using - * setOptions(). This option was added in Release 1.7.0. - * - * @param string the SQL query string - * - * @return mixed + a PHP result resrouce for successful SELECT queries - * + the DB_OK constant for other successful queries - * + a DB_Error object on failure - */ - function simpleQuery($query) - { - $ismanip = $this->_checkManip($query); - $this->last_query = $query; - $query = $this->modifyQuery($query); - if ($this->_db) { - if (!@mysql_select_db($this->_db, $this->connection)) { - return $this->mysqlRaiseError(DB_ERROR_NODBSELECTED); - } - } - if (!$this->autocommit && $ismanip) { - if ($this->transaction_opcount == 0) { - $result = @mysql_query('SET AUTOCOMMIT=0', $this->connection); - $result = @mysql_query('BEGIN', $this->connection); - if (!$result) { - return $this->mysqlRaiseError(); - } - } - $this->transaction_opcount++; - } - if (!$this->options['result_buffering']) { - $result = @mysql_unbuffered_query($query, $this->connection); - } else { - $result = @mysql_query($query, $this->connection); - } - if (!$result) { - return $this->mysqlRaiseError(); - } - if (is_resource($result)) { - return $result; - } - return DB_OK; - } - - // }}} - // {{{ nextResult() - - /** - * Move the internal mysql result pointer to the next available result - * - * This method has not been implemented yet. - * - * @param a valid sql result resource - * - * @return false - */ - function nextResult($result) - { - return false; - } - - // }}} - // {{{ 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 (!@mysql_data_seek($result, $rownum)) { - return null; - } - } - if ($fetchmode & DB_FETCHMODE_ASSOC) { - $arr = @mysql_fetch_array($result, MYSQL_ASSOC); - if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) { - $arr = array_change_key_case($arr, CASE_LOWER); - } - } else { - $arr = @mysql_fetch_row($result); - } - if (!$arr) { - return null; - } - if ($this->options['portability'] & DB_PORTABILITY_RTRIM) { - /* - * Even though this DBMS already trims output, we do this because - * a field might have intentional whitespace at the end that - * gets removed by DB_PORTABILITY_RTRIM under another driver. - */ - $this->_rtrimArrayValues($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($result) ? mysql_free_result($result) : false; - } - - // }}} - // {{{ 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) - { - $cols = @mysql_num_fields($result); - if (!$cols) { - return $this->mysqlRaiseError(); - } - 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) - { - $rows = @mysql_num_rows($result); - if ($rows === null) { - return $this->mysqlRaiseError(); - } - return $rows; - } - - // }}} - // {{{ 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) - { - // XXX if $this->transaction_opcount > 0, we should probably - // issue a warning here. - $this->autocommit = $onoff ? true : false; - return DB_OK; - } - - // }}} - // {{{ commit() - - /** - * Commits the current transaction - * - * @return int DB_OK on success. A DB_Error object on failure. - */ - function commit() - { - if ($this->transaction_opcount > 0) { - if ($this->_db) { - if (!@mysql_select_db($this->_db, $this->connection)) { - return $this->mysqlRaiseError(DB_ERROR_NODBSELECTED); - } - } - $result = @mysql_query('COMMIT', $this->connection); - $result = @mysql_query('SET AUTOCOMMIT=1', $this->connection); - $this->transaction_opcount = 0; - if (!$result) { - return $this->mysqlRaiseError(); - } - } - return DB_OK; - } - - // }}} - // {{{ rollback() - - /** - * Reverts the current transaction - * - * @return int DB_OK on success. A DB_Error object on failure. - */ - function rollback() - { - if ($this->transaction_opcount > 0) { - if ($this->_db) { - if (!@mysql_select_db($this->_db, $this->connection)) { - return $this->mysqlRaiseError(DB_ERROR_NODBSELECTED); - } - } - $result = @mysql_query('ROLLBACK', $this->connection); - $result = @mysql_query('SET AUTOCOMMIT=1', $this->connection); - $this->transaction_opcount = 0; - if (!$result) { - return $this->mysqlRaiseError(); - } - } - return DB_OK; - } - - // }}} - // {{{ affectedRows() - - /** - * Determines the number of rows affected by a data maniuplation query - * - * 0 is returned for queries that don't manipulate data. - * - * @return int the number of rows. A DB_Error object on failure. - */ - function affectedRows() - { - if ($this->_last_query_manip) { - return @mysql_affected_rows($this->connection); - } else { - return 0; - } - } - - // }}} - // {{{ nextId() - - /** - * Returns the next free id in a sequence - * - * @param string $seq_name name of the sequence - * @param boolean $ondemand when true, the seqence is automatically - * created if it does not exist - * - * @return int the next id number in the sequence. - * A DB_Error object on failure. - * - * @see DB_common::nextID(), DB_common::getSequenceName(), - * DB_mysql::createSequence(), DB_mysql::dropSequence() - */ - function nextId($seq_name, $ondemand = true) - { - $seqname = $this->getSequenceName($seq_name); - do { - $repeat = 0; - $this->pushErrorHandling(PEAR_ERROR_RETURN); - $result = $this->query("UPDATE ${seqname} ". - 'SET id=LAST_INSERT_ID(id+1)'); - $this->popErrorHandling(); - if ($result === DB_OK) { - // COMMON CASE - $id = @mysql_insert_id($this->connection); - if ($id != 0) { - return $id; - } - // EMPTY SEQ TABLE - // Sequence table must be empty for some reason, so fill - // it and return 1 and obtain a user-level lock - $result = $this->getOne("SELECT GET_LOCK('${seqname}_lock',10)"); - if (DB::isError($result)) { - return $this->raiseError($result); - } - if ($result == 0) { - // Failed to get the lock - return $this->mysqlRaiseError(DB_ERROR_NOT_LOCKED); - } - - // add the default value - $result = $this->query("REPLACE INTO ${seqname} (id) VALUES (0)"); - if (DB::isError($result)) { - return $this->raiseError($result); - } - - // Release the lock - $result = $this->getOne('SELECT RELEASE_LOCK(' - . "'${seqname}_lock')"); - if (DB::isError($result)) { - return $this->raiseError($result); - } - // We know what the result will be, so no need to try again - return 1; - - } elseif ($ondemand && DB::isError($result) && - $result->getCode() == DB_ERROR_NOSUCHTABLE) - { - // ONDEMAND TABLE CREATION - $result = $this->createSequence($seq_name); - if (DB::isError($result)) { - return $this->raiseError($result); - } else { - $repeat = 1; - } - - } elseif (DB::isError($result) && - $result->getCode() == DB_ERROR_ALREADY_EXISTS) - { - // BACKWARDS COMPAT - // see _BCsequence() comment - $result = $this->_BCsequence($seqname); - if (DB::isError($result)) { - return $this->raiseError($result); - } - $repeat = 1; - } - } while ($repeat); - - return $this->raiseError($result); - } - - // }}} - // {{{ createSequence() - - /** - * Creates a new sequence - * - * @param string $seq_name name of the new sequence - * - * @return int DB_OK on success. A DB_Error object on failure. - * - * @see DB_common::createSequence(), DB_common::getSequenceName(), - * DB_mysql::nextID(), DB_mysql::dropSequence() - */ - function createSequence($seq_name) - { - $seqname = $this->getSequenceName($seq_name); - $res = $this->query('CREATE TABLE ' . $seqname - . ' (id INTEGER UNSIGNED AUTO_INCREMENT NOT NULL,' - . ' PRIMARY KEY(id))'); - if (DB::isError($res)) { - return $res; - } - // insert yields value 1, nextId call will generate ID 2 - $res = $this->query("INSERT INTO ${seqname} (id) VALUES (0)"); - if (DB::isError($res)) { - return $res; - } - // so reset to zero - return $this->query("UPDATE ${seqname} SET id = 0"); - } - - // }}} - // {{{ dropSequence() - - /** - * Deletes a sequence - * - * @param string $seq_name name of the sequence to be deleted - * - * @return int DB_OK on success. A DB_Error object on failure. - * - * @see DB_common::dropSequence(), DB_common::getSequenceName(), - * DB_mysql::nextID(), DB_mysql::createSequence() - */ - function dropSequence($seq_name) - { - return $this->query('DROP TABLE ' . $this->getSequenceName($seq_name)); - } - - // }}} - // {{{ _BCsequence() - - /** - * Backwards compatibility with old sequence emulation implementation - * (clean up the dupes) - * - * @param string $seqname the sequence name to clean up - * - * @return bool true on success. A DB_Error object on failure. - * - * @access private - */ - function _BCsequence($seqname) - { - // Obtain a user-level lock... this will release any previous - // application locks, but unlike LOCK TABLES, it does not abort - // the current transaction and is much less frequently used. - $result = $this->getOne("SELECT GET_LOCK('${seqname}_lock',10)"); - if (DB::isError($result)) { - return $result; - } - if ($result == 0) { - // Failed to get the lock, can't do the conversion, bail - // with a DB_ERROR_NOT_LOCKED error - return $this->mysqlRaiseError(DB_ERROR_NOT_LOCKED); - } - - $highest_id = $this->getOne("SELECT MAX(id) FROM ${seqname}"); - if (DB::isError($highest_id)) { - return $highest_id; - } - // This should kill all rows except the highest - // We should probably do something if $highest_id isn't - // numeric, but I'm at a loss as how to handle that... - $result = $this->query('DELETE FROM ' . $seqname - . " WHERE id <> $highest_id"); - if (DB::isError($result)) { - return $result; - } - - // If another thread has been waiting for this lock, - // it will go thru the above procedure, but will have no - // real effect - $result = $this->getOne("SELECT RELEASE_LOCK('${seqname}_lock')"); - if (DB::isError($result)) { - return $result; - } - return true; - } - - // }}} - // {{{ quoteIdentifier() - - /** - * Quotes a string so it can be safely used as a table or column name - * (WARNING: using names that require this is a REALLY BAD IDEA) - * - * WARNING: Older versions of MySQL can't handle the backtick - * character (<kbd>`</kbd>) in table or column names. - * - * @param string $str identifier name to be quoted - * - * @return string quoted identifier string - * - * @see DB_common::quoteIdentifier() - * @since Method available since Release 1.6.0 - */ - function quoteIdentifier($str) - { - return '`' . str_replace('`', '``', $str) . '`'; - } - - // }}} - // {{{ quote() - - /** - * @deprecated Deprecated in release 1.6.0 - */ - function quote($str) - { - return $this->quoteSmart($str); - } - - // }}} - // {{{ escapeSimple() - - /** - * Escapes a string according to the current DBMS's standards - * - * @param string $str the string to be escaped - * - * @return string the escaped string - * - * @see DB_common::quoteSmart() - * @since Method available since Release 1.6.0 - */ - function escapeSimple($str) - { - if (function_exists('mysql_real_escape_string')) { - return @mysql_real_escape_string($str, $this->connection); - } else { - return @mysql_escape_string($str); - } - } - - // }}} - // {{{ modifyQuery() - - /** - * Changes a query string for various DBMS specific reasons - * - * This little hack lets you know how many rows were deleted - * when running a "DELETE FROM table" query. Only implemented - * if the DB_PORTABILITY_DELETE_COUNT portability option is on. - * - * @param string $query the query string to modify - * - * @return string the modified query string - * - * @access protected - * @see DB_common::setOption() - */ - function modifyQuery($query) - { - if ($this->options['portability'] & DB_PORTABILITY_DELETE_COUNT) { - // "DELETE FROM table" gives 0 affected rows in MySQL. - // This little hack lets you know how many rows were deleted. - if (preg_match('/^\s*DELETE\s+FROM\s+(\S+)\s*$/i', $query)) { - $query = preg_replace('/^\s*DELETE\s+FROM\s+(\S+)\s*$/', - 'DELETE FROM \1 WHERE 1=1', $query); - } - } - return $query; - } - - // }}} - // {{{ 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 $query . " LIMIT $count"; - } else { - return $query . " LIMIT $from, $count"; - } - } - - // }}} - // {{{ mysqlRaiseError() - - /** - * Produces a DB_Error object regarding the current problem - * - * @param int $errno if the error is being manually raised pass a - * DB_ERROR* constant here. If this isn't passed - * the error information gathered from the DBMS. - * - * @return object the DB_Error object - * - * @see DB_common::raiseError(), - * DB_mysql::errorNative(), DB_common::errorCode() - */ - function mysqlRaiseError($errno = null) - { - if ($errno === null) { - if ($this->options['portability'] & DB_PORTABILITY_ERRORS) { - $this->errorcode_map[1022] = DB_ERROR_CONSTRAINT; - $this->errorcode_map[1048] = DB_ERROR_CONSTRAINT_NOT_NULL; - $this->errorcode_map[1062] = DB_ERROR_CONSTRAINT; - } else { - // Doing this in case mode changes during runtime. - $this->errorcode_map[1022] = DB_ERROR_ALREADY_EXISTS; - $this->errorcode_map[1048] = DB_ERROR_CONSTRAINT; - $this->errorcode_map[1062] = DB_ERROR_ALREADY_EXISTS; - } - $errno = $this->errorCode(mysql_errno($this->connection)); - } - return $this->raiseError($errno, null, null, null, - @mysql_errno($this->connection) . ' ** ' . - @mysql_error($this->connection)); - } - - // }}} - // {{{ errorNative() - - /** - * Gets the DBMS' native error code produced by the last query - * - * @return int the DBMS' error code - */ - function errorNative() - { - return @mysql_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)) { - // Fix for bug #11580. - if ($this->_db) { - if (!@mysql_select_db($this->_db, $this->connection)) { - return $this->mysqlRaiseError(DB_ERROR_NODBSELECTED); - } - } - - /* - * Probably received a table name. - * Create a result resource identifier. - */ - $id = @mysql_query("SELECT * FROM $result LIMIT 0", - $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 $this->mysqlRaiseError(DB_ERROR_NEED_MORE_DATA); - } - - if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) { - $case_func = 'strtolower'; - } else { - $case_func = 'strval'; - } - - $count = @mysql_num_fields($id); - $res = array(); - - if ($mode) { - $res['num_fields'] = $count; - } - - for ($i = 0; $i < $count; $i++) { - $res[$i] = array( - 'table' => $case_func(@mysql_field_table($id, $i)), - 'name' => $case_func(@mysql_field_name($id, $i)), - 'type' => @mysql_field_type($id, $i), - 'len' => @mysql_field_len($id, $i), - 'flags' => @mysql_field_flags($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) { - @mysql_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 'SHOW TABLES'; - case 'users': - return 'SELECT DISTINCT User FROM mysql.user'; - case 'databases': - return 'SHOW DATABASES'; - default: - return null; - } - } - - // }}} - -} - -/* - * Local variables: - * tab-width: 4 - * c-basic-offset: 4 - * End: - */ - -?> |