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Diffstat (limited to 'program/lib/DB/ibase.php')
| -rw-r--r-- | program/lib/DB/ibase.php | 1082 |
1 files changed, 0 insertions, 1082 deletions
diff --git a/program/lib/DB/ibase.php b/program/lib/DB/ibase.php deleted file mode 100644 index 913fbf3eb..000000000 --- a/program/lib/DB/ibase.php +++ /dev/null @@ -1,1082 +0,0 @@ -<?php - -/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */ - -/** - * The PEAR DB driver for PHP's interbase extension - * for interacting with Interbase and Firebird databases - * - * While this class works with PHP 4, PHP's InterBase extension is - * unstable in PHP 4. Use PHP 5. - * - * 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 Sterling Hughes <sterling@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 interbase extension - * for interacting with Interbase and Firebird databases - * - * These methods overload the ones declared in DB_common. - * - * While this class works with PHP 4, PHP's InterBase extension is - * unstable in PHP 4. Use PHP 5. - * - * NOTICE: limitQuery() only works for Firebird. - * - * @category Database - * @package DB - * @author Sterling Hughes <sterling@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 - * @since Class became stable in Release 1.7.0 - */ -class DB_ibase extends DB_common -{ - // {{{ properties - - /** - * The DB driver type (mysql, oci8, odbc, etc.) - * @var string - */ - var $phptype = 'ibase'; - - /** - * The database syntax variant to be used (db2, access, etc.), if any - * @var string - */ - var $dbsyntax = 'ibase'; - - /** - * 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 - * - * NOTE: only firebird supports limit. - * - * @var array - */ - var $features = array( - 'limit' => false, - 'new_link' => false, - 'numrows' => 'emulate', - 'pconnect' => true, - 'prepare' => true, - 'ssl' => false, - 'transactions' => true, - ); - - /** - * A mapping of native error codes to DB error codes - * @var array - */ - var $errorcode_map = array( - -104 => DB_ERROR_SYNTAX, - -150 => DB_ERROR_ACCESS_VIOLATION, - -151 => DB_ERROR_ACCESS_VIOLATION, - -155 => DB_ERROR_NOSUCHTABLE, - -157 => DB_ERROR_NOSUCHFIELD, - -158 => DB_ERROR_VALUE_COUNT_ON_ROW, - -170 => DB_ERROR_MISMATCH, - -171 => DB_ERROR_MISMATCH, - -172 => DB_ERROR_INVALID, - // -204 => // Covers too many errors, need to use regex on msg - -205 => DB_ERROR_NOSUCHFIELD, - -206 => DB_ERROR_NOSUCHFIELD, - -208 => DB_ERROR_INVALID, - -219 => DB_ERROR_NOSUCHTABLE, - -297 => DB_ERROR_CONSTRAINT, - -303 => DB_ERROR_INVALID, - -413 => DB_ERROR_INVALID_NUMBER, - -530 => DB_ERROR_CONSTRAINT, - -551 => DB_ERROR_ACCESS_VIOLATION, - -552 => DB_ERROR_ACCESS_VIOLATION, - // -607 => // Covers too many errors, need to use regex on msg - -625 => DB_ERROR_CONSTRAINT_NOT_NULL, - -803 => DB_ERROR_CONSTRAINT, - -804 => DB_ERROR_VALUE_COUNT_ON_ROW, - // -902 => // Covers too many errors, need to use regex on msg - -904 => DB_ERROR_CONNECT_FAILED, - -922 => DB_ERROR_NOSUCHDB, - -923 => DB_ERROR_CONNECT_FAILED, - -924 => DB_ERROR_CONNECT_FAILED - ); - - /** - * The raw database connection created by PHP - * @var resource - */ - var $connection; - - /** - * The DSN information for connecting to a database - * @var array - */ - var $dsn = array(); - - - /** - * The number of rows affected by a data manipulation query - * @var integer - * @access private - */ - var $affected = 0; - - /** - * Should data manipulation queries be committed automatically? - * @var bool - * @access private - */ - var $autocommit = true; - - /** - * The prepared statement handle from the most recently executed statement - * - * {@internal Mainly here because the InterBase/Firebird API is only - * able to retrieve data from result sets if the statemnt handle is - * still in scope.}} - * - * @var resource - */ - var $last_stmt; - - /** - * Is the given prepared statement a data manipulation query? - * @var array - * @access private - */ - var $manip_query = array(); - - - // }}} - // {{{ constructor - - /** - * This constructor calls <kbd>$this->DB_common()</kbd> - * - * @return void - */ - function DB_ibase() - { - $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 ibase driver supports the following extra DSN options: - * + buffers The number of database buffers to allocate for the - * server-side cache. - * + charset The default character set for a database. - * + dialect The default SQL dialect for any statement - * executed within a connection. Defaults to the - * highest one supported by client libraries. - * Functional only with InterBase 6 and up. - * + role Functional only with InterBase 5 and up. - * - * @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('interbase')) { - return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND); - } - - $this->dsn = $dsn; - if ($dsn['dbsyntax']) { - $this->dbsyntax = $dsn['dbsyntax']; - } - if ($this->dbsyntax == 'firebird') { - $this->features['limit'] = 'alter'; - } - - $params = array( - $dsn['hostspec'] - ? ($dsn['hostspec'] . ':' . $dsn['database']) - : $dsn['database'], - $dsn['username'] ? $dsn['username'] : null, - $dsn['password'] ? $dsn['password'] : null, - isset($dsn['charset']) ? $dsn['charset'] : null, - isset($dsn['buffers']) ? $dsn['buffers'] : null, - isset($dsn['dialect']) ? $dsn['dialect'] : null, - isset($dsn['role']) ? $dsn['role'] : null, - ); - - $connect_function = $persistent ? 'ibase_pconnect' : 'ibase_connect'; - - $this->connection = @call_user_func_array($connect_function, $params); - if (!$this->connection) { - return $this->ibaseRaiseError(DB_ERROR_CONNECT_FAILED); - } - return DB_OK; - } - - // }}} - // {{{ disconnect() - - /** - * Disconnects from the database server - * - * @return bool TRUE on success, FALSE on failure - */ - function disconnect() - { - $ret = @ibase_close($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) - { - $ismanip = $this->_checkManip($query); - $this->last_query = $query; - $query = $this->modifyQuery($query); - $result = @ibase_query($this->connection, $query); - - if (!$result) { - return $this->ibaseRaiseError(); - } - if ($this->autocommit && $ismanip) { - @ibase_commit($this->connection); - } - if ($ismanip) { - $this->affected = $result; - return DB_OK; - } else { - $this->affected = 0; - return $result; - } - } - - // }}} - // {{{ modifyLimitQuery() - - /** - * Adds LIMIT clauses to a query string according to current DBMS standards - * - * Only works with Firebird. - * - * @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, $params = array()) - { - if ($this->dsn['dbsyntax'] == 'firebird') { - $query = preg_replace('/^([\s(])*SELECT/i', - "SELECT FIRST $count SKIP $from", $query); - } - return $query; - } - - // }}} - // {{{ nextResult() - - /** - * Move the internal ibase result pointer to the next available result - * - * @param a valid fbsql result resource - * - * @access public - * - * @return true if a result is available otherwise return false - */ - function nextResult($result) - { - return 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) { - return $this->ibaseRaiseError(DB_ERROR_NOT_CAPABLE); - } - if ($fetchmode & DB_FETCHMODE_ASSOC) { - if (function_exists('ibase_fetch_assoc')) { - $arr = @ibase_fetch_assoc($result); - } else { - $arr = get_object_vars(ibase_fetch_object($result)); - } - if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) { - $arr = array_change_key_case($arr, CASE_LOWER); - } - } else { - $arr = @ibase_fetch_row($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($result) ? ibase_free_result($result) : false; - } - - // }}} - // {{{ freeQuery() - - function freeQuery($query) - { - return is_resource($query) ? ibase_free_query($query) : false; - } - - // }}} - // {{{ affectedRows() - - /** - * Determines the number of rows affected by a data maniuplation query - * - * 0 is returned for queries that don't manipulate data. - * - * @return int the number of rows. A DB_Error object on failure. - */ - function affectedRows() - { - if (is_integer($this->affected)) { - return $this->affected; - } - return $this->ibaseRaiseError(DB_ERROR_NOT_CAPABLE); - } - - // }}} - // {{{ 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) - { - $cols = @ibase_num_fields($result); - if (!$cols) { - return $this->ibaseRaiseError(); - } - return $cols; - } - - // }}} - // {{{ prepare() - - /** - * Prepares a query for multiple execution with execute(). - * - * prepare() requires a generic query as string like <code> - * INSERT INTO numbers VALUES (?, ?, ?) - * </code>. The <kbd>?</kbd> characters are placeholders. - * - * Three types of placeholders can be used: - * + <kbd>?</kbd> a quoted scalar value, i.e. strings, integers - * + <kbd>!</kbd> value is inserted 'as is' - * + <kbd>&</kbd> requires a file name. The file's contents get - * inserted into the query (i.e. saving binary - * data in a db) - * - * Use backslashes to escape placeholder characters if you don't want - * them to be interpreted as placeholders. Example: <code> - * "UPDATE foo SET col=? WHERE col='over \& under'" - * </code> - * - * @param string $query query to be prepared - * @return mixed DB statement resource on success. DB_Error on failure. - */ - function prepare($query) - { - $tokens = preg_split('/((?<!\\\)[&?!])/', $query, -1, - PREG_SPLIT_DELIM_CAPTURE); - $token = 0; - $types = array(); - $newquery = ''; - - foreach ($tokens as $key => $val) { - switch ($val) { - case '?': - $types[$token++] = DB_PARAM_SCALAR; - break; - case '&': - $types[$token++] = DB_PARAM_OPAQUE; - break; - case '!': - $types[$token++] = DB_PARAM_MISC; - break; - default: - $tokens[$key] = preg_replace('/\\\([&?!])/', "\\1", $val); - $newquery .= $tokens[$key] . '?'; - } - } - - $newquery = substr($newquery, 0, -1); - $this->last_query = $query; - $newquery = $this->modifyQuery($newquery); - $stmt = @ibase_prepare($this->connection, $newquery); - - if ($stmt === false) { - $stmt = $this->ibaseRaiseError(); - } else { - $this->prepare_types[(int)$stmt] = $types; - $this->manip_query[(int)$stmt] = DB::isManip($query); - } - - return $stmt; - } - - // }}} - // {{{ execute() - - /** - * Executes a DB statement prepared with prepare(). - * - * @param resource $stmt a DB statement resource returned from prepare() - * @param mixed $data array, string or numeric data to be used in - * execution of the statement. Quantity of items - * passed must match quantity of placeholders in - * query: meaning 1 for non-array items or the - * quantity of elements in the array. - * @return object a new DB_Result or a DB_Error when fail - * @see DB_ibase::prepare() - * @access public - */ - function &execute($stmt, $data = array()) - { - $data = (array)$data; - $this->last_parameters = $data; - - $types = $this->prepare_types[(int)$stmt]; - if (count($types) != count($data)) { - $tmp = $this->raiseError(DB_ERROR_MISMATCH); - return $tmp; - } - - $i = 0; - foreach ($data as $key => $value) { - if ($types[$i] == DB_PARAM_MISC) { - /* - * ibase doesn't seem to have the ability to pass a - * parameter along unchanged, so strip off quotes from start - * and end, plus turn two single quotes to one single quote, - * in order to avoid the quotes getting escaped by - * ibase and ending up in the database. - */ - $data[$key] = preg_replace("/^'(.*)'$/", "\\1", $data[$key]); - $data[$key] = str_replace("''", "'", $data[$key]); - } elseif ($types[$i] == DB_PARAM_OPAQUE) { - $fp = @fopen($data[$key], 'rb'); - if (!$fp) { - $tmp = $this->raiseError(DB_ERROR_ACCESS_VIOLATION); - return $tmp; - } - $data[$key] = fread($fp, filesize($data[$key])); - fclose($fp); - } - $i++; - } - - array_unshift($data, $stmt); - - $res = call_user_func_array('ibase_execute', $data); - if (!$res) { - $tmp = $this->ibaseRaiseError(); - return $tmp; - } - /* XXX need this? - if ($this->autocommit && $this->manip_query[(int)$stmt]) { - @ibase_commit($this->connection); - }*/ - $this->last_stmt = $stmt; - if ($this->manip_query[(int)$stmt] || $this->_next_query_manip) { - $this->_last_query_manip = true; - $this->_next_query_manip = false; - $tmp = DB_OK; - } else { - $this->_last_query_manip = false; - $tmp = new DB_result($this, $res); - } - return $tmp; - } - - /** - * Frees the internal resources associated with a prepared query - * - * @param resource $stmt the prepared statement's PHP resource - * @param bool $free_resource should the PHP resource be freed too? - * Use false if you need to get data - * from the result set later. - * - * @return bool TRUE on success, FALSE if $result is invalid - * - * @see DB_ibase::prepare() - */ - function freePrepared($stmt, $free_resource = true) - { - if (!is_resource($stmt)) { - return false; - } - if ($free_resource) { - @ibase_free_query($stmt); - } - unset($this->prepare_tokens[(int)$stmt]); - unset($this->prepare_types[(int)$stmt]); - unset($this->manip_query[(int)$stmt]); - return true; - } - - // }}} - // {{{ 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) - { - $this->autocommit = $onoff ? 1 : 0; - return DB_OK; - } - - // }}} - // {{{ commit() - - /** - * Commits the current transaction - * - * @return int DB_OK on success. A DB_Error object on failure. - */ - function commit() - { - return @ibase_commit($this->connection); - } - - // }}} - // {{{ rollback() - - /** - * Reverts the current transaction - * - * @return int DB_OK on success. A DB_Error object on failure. - */ - function rollback() - { - return @ibase_rollback($this->connection); - } - - // }}} - // {{{ transactionInit() - - function transactionInit($trans_args = 0) - { - return $trans_args - ? @ibase_trans($trans_args, $this->connection) - : @ibase_trans(); - } - - // }}} - // {{{ nextId() - - /** - * Returns the next free id in a sequence - * - * @param string $seq_name name of the sequence - * @param boolean $ondemand when true, the seqence is automatically - * created if it does not exist - * - * @return int the next id number in the sequence. - * A DB_Error object on failure. - * - * @see DB_common::nextID(), DB_common::getSequenceName(), - * DB_ibase::createSequence(), DB_ibase::dropSequence() - */ - function nextId($seq_name, $ondemand = true) - { - $sqn = strtoupper($this->getSequenceName($seq_name)); - $repeat = 0; - do { - $this->pushErrorHandling(PEAR_ERROR_RETURN); - $result = $this->query("SELECT GEN_ID(${sqn}, 1) " - . 'FROM RDB$GENERATORS ' - . "WHERE RDB\$GENERATOR_NAME='${sqn}'"); - $this->popErrorHandling(); - if ($ondemand && DB::isError($result)) { - $repeat = 1; - $result = $this->createSequence($seq_name); - if (DB::isError($result)) { - return $result; - } - } else { - $repeat = 0; - } - } while ($repeat); - if (DB::isError($result)) { - return $this->raiseError($result); - } - $arr = $result->fetchRow(DB_FETCHMODE_ORDERED); - $result->free(); - return $arr[0]; - } - - // }}} - // {{{ createSequence() - - /** - * Creates a new sequence - * - * @param string $seq_name name of the new sequence - * - * @return int DB_OK on success. A DB_Error object on failure. - * - * @see DB_common::createSequence(), DB_common::getSequenceName(), - * DB_ibase::nextID(), DB_ibase::dropSequence() - */ - function createSequence($seq_name) - { - $sqn = strtoupper($this->getSequenceName($seq_name)); - $this->pushErrorHandling(PEAR_ERROR_RETURN); - $result = $this->query("CREATE GENERATOR ${sqn}"); - $this->popErrorHandling(); - - return $result; - } - - // }}} - // {{{ dropSequence() - - /** - * Deletes a sequence - * - * @param string $seq_name name of the sequence to be deleted - * - * @return int DB_OK on success. A DB_Error object on failure. - * - * @see DB_common::dropSequence(), DB_common::getSequenceName(), - * DB_ibase::nextID(), DB_ibase::createSequence() - */ - function dropSequence($seq_name) - { - return $this->query('DELETE FROM RDB$GENERATORS ' - . "WHERE RDB\$GENERATOR_NAME='" - . strtoupper($this->getSequenceName($seq_name)) - . "'"); - } - - // }}} - // {{{ _ibaseFieldFlags() - - /** - * Get the column's flags - * - * Supports "primary_key", "unique_key", "not_null", "default", - * "computed" and "blob". - * - * @param string $field_name the name of the field - * @param string $table_name the name of the table - * - * @return string the flags - * - * @access private - */ - function _ibaseFieldFlags($field_name, $table_name) - { - $sql = 'SELECT R.RDB$CONSTRAINT_TYPE CTYPE' - .' FROM RDB$INDEX_SEGMENTS I' - .' JOIN RDB$RELATION_CONSTRAINTS R ON I.RDB$INDEX_NAME=R.RDB$INDEX_NAME' - .' WHERE I.RDB$FIELD_NAME=\'' . $field_name . '\'' - .' AND UPPER(R.RDB$RELATION_NAME)=\'' . strtoupper($table_name) . '\''; - - $result = @ibase_query($this->connection, $sql); - if (!$result) { - return $this->ibaseRaiseError(); - } - - $flags = ''; - if ($obj = @ibase_fetch_object($result)) { - @ibase_free_result($result); - if (isset($obj->CTYPE) && trim($obj->CTYPE) == 'PRIMARY KEY') { - $flags .= 'primary_key '; - } - if (isset($obj->CTYPE) && trim($obj->CTYPE) == 'UNIQUE') { - $flags .= 'unique_key '; - } - } - - $sql = 'SELECT R.RDB$NULL_FLAG AS NFLAG,' - .' R.RDB$DEFAULT_SOURCE AS DSOURCE,' - .' F.RDB$FIELD_TYPE AS FTYPE,' - .' F.RDB$COMPUTED_SOURCE AS CSOURCE' - .' FROM RDB$RELATION_FIELDS R ' - .' JOIN RDB$FIELDS F ON R.RDB$FIELD_SOURCE=F.RDB$FIELD_NAME' - .' WHERE UPPER(R.RDB$RELATION_NAME)=\'' . strtoupper($table_name) . '\'' - .' AND R.RDB$FIELD_NAME=\'' . $field_name . '\''; - - $result = @ibase_query($this->connection, $sql); - if (!$result) { - return $this->ibaseRaiseError(); - } - if ($obj = @ibase_fetch_object($result)) { - @ibase_free_result($result); - if (isset($obj->NFLAG)) { - $flags .= 'not_null '; - } - if (isset($obj->DSOURCE)) { - $flags .= 'default '; - } - if (isset($obj->CSOURCE)) { - $flags .= 'computed '; - } - if (isset($obj->FTYPE) && $obj->FTYPE == 261) { - $flags .= 'blob '; - } - } - - return trim($flags); - } - - // }}} - // {{{ ibaseRaiseError() - - /** - * Produces a DB_Error object regarding the current problem - * - * @param int $errno if the error is being manually raised pass a - * DB_ERROR* constant here. If this isn't passed - * the error information gathered from the DBMS. - * - * @return object the DB_Error object - * - * @see DB_common::raiseError(), - * DB_ibase::errorNative(), DB_ibase::errorCode() - */ - function &ibaseRaiseError($errno = null) - { - if ($errno === null) { - $errno = $this->errorCode($this->errorNative()); - } - $tmp = $this->raiseError($errno, null, null, null, @ibase_errmsg()); - return $tmp; - } - - // }}} - // {{{ errorNative() - - /** - * Gets the DBMS' native error code produced by the last query - * - * @return int the DBMS' error code. NULL if there is no error code. - * - * @since Method available since Release 1.7.0 - */ - function errorNative() - { - if (function_exists('ibase_errcode')) { - return @ibase_errcode(); - } - if (preg_match('/^Dynamic SQL Error SQL error code = ([0-9-]+)/i', - @ibase_errmsg(), $m)) { - return (int)$m[1]; - } - return null; - } - - // }}} - // {{{ errorCode() - - /** - * Maps native error codes to DB's portable ones - * - * @param int $nativecode the error code returned by the DBMS - * - * @return int the portable DB error code. Return DB_ERROR if the - * current driver doesn't have a mapping for the - * $nativecode submitted. - * - * @since Method available since Release 1.7.0 - */ - function errorCode($nativecode = null) - { - if (isset($this->errorcode_map[$nativecode])) { - return $this->errorcode_map[$nativecode]; - } - - static $error_regexps; - if (!isset($error_regexps)) { - $error_regexps = array( - '/generator .* is not defined/' - => DB_ERROR_SYNTAX, // for compat. w ibase_errcode() - '/table.*(not exist|not found|unknown)/i' - => DB_ERROR_NOSUCHTABLE, - '/table .* already exists/i' - => DB_ERROR_ALREADY_EXISTS, - '/unsuccessful metadata update .* failed attempt to store duplicate value/i' - => DB_ERROR_ALREADY_EXISTS, - '/unsuccessful metadata update .* not found/i' - => DB_ERROR_NOT_FOUND, - '/validation error for column .* value "\*\*\* null/i' - => DB_ERROR_CONSTRAINT_NOT_NULL, - '/violation of [\w ]+ constraint/i' - => DB_ERROR_CONSTRAINT, - '/conversion error from string/i' - => DB_ERROR_INVALID_NUMBER, - '/no permission for/i' - => DB_ERROR_ACCESS_VIOLATION, - '/arithmetic exception, numeric overflow, or string truncation/i' - => DB_ERROR_INVALID, - '/feature is not supported/i' - => DB_ERROR_NOT_CAPABLE, - ); - } - - $errormsg = @ibase_errmsg(); - foreach ($error_regexps as $regexp => $code) { - if (preg_match($regexp, $errormsg)) { - return $code; - } - } - return DB_ERROR; - } - - // }}} - // {{{ tableInfo() - - /** - * Returns information about a table or a result set - * - * NOTE: only supports 'table' and 'flags' if <var>$result</var> - * is a table name. - * - * @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. - */ - $id = @ibase_query($this->connection, - "SELECT * FROM $result WHERE 1=0"); - $got_string = true; - } elseif (isset($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 $this->ibaseRaiseError(DB_ERROR_NEED_MORE_DATA); - } - - if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) { - $case_func = 'strtolower'; - } else { - $case_func = 'strval'; - } - - $count = @ibase_num_fields($id); - $res = array(); - - if ($mode) { - $res['num_fields'] = $count; - } - - for ($i = 0; $i < $count; $i++) { - $info = @ibase_field_info($id, $i); - $res[$i] = array( - 'table' => $got_string ? $case_func($result) : '', - 'name' => $case_func($info['name']), - 'type' => $info['type'], - 'len' => $info['length'], - 'flags' => ($got_string) - ? $this->_ibaseFieldFlags($info['name'], $result) - : '', - ); - if ($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) { - @ibase_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 ($type) { - case 'tables': - return 'SELECT DISTINCT R.RDB$RELATION_NAME FROM ' - . 'RDB$RELATION_FIELDS R WHERE R.RDB$SYSTEM_FLAG=0'; - case 'views': - return 'SELECT DISTINCT RDB$VIEW_NAME from RDB$VIEW_RELATIONS'; - case 'users': - return 'SELECT DISTINCT RDB$USER FROM RDB$USER_PRIVILEGES'; - default: - return null; - } - } - - // }}} - -} - -/* - * Local variables: - * tab-width: 4 - * c-basic-offset: 4 - * End: - */ - -?> |