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authoralecpl <alec@alec.pl>2008-08-26 07:21:50 +0000
committeralecpl <alec@alec.pl>2008-08-26 07:21:50 +0000
commit9e8e5fa634ace418e6b34280133685485b97a9c0 (patch)
tree80ae14092bef204fe4689e83d72542af5d152d46 /program/lib/DB/ibase.php
parent6ed25604a9f3d4a57b12ad1364af1690f43ec282 (diff)
- Removed support for PEAR::DB driver
Diffstat (limited to 'program/lib/DB/ibase.php')
-rw-r--r--program/lib/DB/ibase.php1082
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:
- */
-
-?>