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-<?php
-
-/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
-
-/**
- * The PEAR DB driver for PHP's mssql extension
- * for interacting with Microsoft SQL Server 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 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 mssql extension
- * for interacting with Microsoft SQL Server databases
- *
- * These methods overload the ones declared in DB_common.
- *
- * DB's mssql driver is only for Microsfoft SQL Server databases.
- *
- * If you're connecting to a Sybase database, you MUST specify "sybase"
- * as the "phptype" in the DSN.
- *
- * This class only works correctly if you have compiled PHP using
- * --with-mssql=[dir_to_FreeTDS].
- *
- * @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
- */
-class DB_mssql extends DB_common
-{
- // {{{ properties
-
- /**
- * The DB driver type (mysql, oci8, odbc, etc.)
- * @var string
- */
- var $phptype = 'mssql';
-
- /**
- * The database syntax variant to be used (db2, access, etc.), if any
- * @var string
- */
- var $dbsyntax = 'mssql';
-
- /**
- * 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' => 'emulate',
- '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
- */
- // XXX Add here error codes ie: 'S100E' => DB_ERROR_SYNTAX
- var $errorcode_map = array(
- 102 => DB_ERROR_SYNTAX,
- 110 => DB_ERROR_VALUE_COUNT_ON_ROW,
- 155 => DB_ERROR_NOSUCHFIELD,
- 156 => DB_ERROR_SYNTAX,
- 170 => DB_ERROR_SYNTAX,
- 207 => DB_ERROR_NOSUCHFIELD,
- 208 => DB_ERROR_NOSUCHTABLE,
- 245 => DB_ERROR_INVALID_NUMBER,
- 319 => DB_ERROR_SYNTAX,
- 321 => DB_ERROR_NOSUCHFIELD,
- 325 => DB_ERROR_SYNTAX,
- 336 => DB_ERROR_SYNTAX,
- 515 => DB_ERROR_CONSTRAINT_NOT_NULL,
- 547 => DB_ERROR_CONSTRAINT,
- 1018 => DB_ERROR_SYNTAX,
- 1035 => DB_ERROR_SYNTAX,
- 1913 => DB_ERROR_ALREADY_EXISTS,
- 2209 => DB_ERROR_SYNTAX,
- 2223 => DB_ERROR_SYNTAX,
- 2248 => DB_ERROR_SYNTAX,
- 2256 => DB_ERROR_SYNTAX,
- 2257 => DB_ERROR_SYNTAX,
- 2627 => DB_ERROR_CONSTRAINT,
- 2714 => DB_ERROR_ALREADY_EXISTS,
- 3607 => DB_ERROR_DIVZERO,
- 3701 => DB_ERROR_NOSUCHTABLE,
- 7630 => DB_ERROR_SYNTAX,
- 8134 => DB_ERROR_DIVZERO,
- 9303 => DB_ERROR_SYNTAX,
- 9317 => DB_ERROR_SYNTAX,
- 9318 => DB_ERROR_SYNTAX,
- 9331 => DB_ERROR_SYNTAX,
- 9332 => DB_ERROR_SYNTAX,
- 15253 => DB_ERROR_SYNTAX,
- );
-
- /**
- * 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 $_db = null;
-
-
- // }}}
- // {{{ constructor
-
- /**
- * This constructor calls <kbd>$this->DB_common()</kbd>
- *
- * @return void
- */
- function DB_mssql()
- {
- $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.
- *
- * @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('mssql') && !PEAR::loadExtension('sybase')
- && !PEAR::loadExtension('sybase_ct'))
- {
- 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'] ? $dsn['password'] : null,
- );
- if ($dsn['port']) {
- $params[0] .= ((substr(PHP_OS, 0, 3) == 'WIN') ? ',' : ':')
- . $dsn['port'];
- }
-
- $connect_function = $persistent ? 'mssql_pconnect' : 'mssql_connect';
-
- $this->connection = @call_user_func_array($connect_function, $params);
-
- if (!$this->connection) {
- return $this->raiseError(DB_ERROR_CONNECT_FAILED,
- null, null, null,
- @mssql_get_last_message());
- }
- if ($dsn['database']) {
- if (!@mssql_select_db($dsn['database'], $this->connection)) {
- return $this->raiseError(DB_ERROR_NODBSELECTED,
- null, null, null,
- @mssql_get_last_message());
- }
- $this->_db = $dsn['database'];
- }
- return DB_OK;
- }
-
- // }}}
- // {{{ disconnect()
-
- /**
- * Disconnects from the database server
- *
- * @return bool TRUE on success, FALSE on failure
- */
- function disconnect()
- {
- $ret = @mssql_close($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 = $query;
- if (!@mssql_select_db($this->_db, $this->connection)) {
- return $this->mssqlRaiseError(DB_ERROR_NODBSELECTED);
- }
- $query = $this->modifyQuery($query);
- if (!$this->autocommit && $ismanip) {
- if ($this->transaction_opcount == 0) {
- $result = @mssql_query('BEGIN TRAN', $this->connection);
- if (!$result) {
- return $this->mssqlRaiseError();
- }
- }
- $this->transaction_opcount++;
- }
- $result = @mssql_query($query, $this->connection);
- if (!$result) {
- return $this->mssqlRaiseError();
- }
- // Determine which queries that should return data, and which
- // should return an error code only.
- return $ismanip ? DB_OK : $result;
- }
-
- // }}}
- // {{{ nextResult()
-
- /**
- * Move the internal mssql result pointer to the next available result
- *
- * @param a valid fbsql result resource
- *
- * @access public
- *
- * @return true if a result is available otherwise return false
- */
- function nextResult($result)
- {
- return @mssql_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 (!@mssql_data_seek($result, $rownum)) {
- return null;
- }
- }
- if ($fetchmode & DB_FETCHMODE_ASSOC) {
- $arr = @mssql_fetch_assoc($result);
- if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) {
- $arr = array_change_key_case($arr, CASE_LOWER);
- }
- } else {
- $arr = @mssql_fetch_row($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($result) ? mssql_free_result($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)
- {
- $cols = @mssql_num_fields($result);
- if (!$cols) {
- return $this->mssqlRaiseError();
- }
- 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)
- {
- $rows = @mssql_num_rows($result);
- if ($rows === false) {
- return $this->mssqlRaiseError();
- }
- 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 (!@mssql_select_db($this->_db, $this->connection)) {
- return $this->mssqlRaiseError(DB_ERROR_NODBSELECTED);
- }
- $result = @mssql_query('COMMIT TRAN', $this->connection);
- $this->transaction_opcount = 0;
- if (!$result) {
- return $this->mssqlRaiseError();
- }
- }
- return DB_OK;
- }
-
- // }}}
- // {{{ rollback()
-
- /**
- * Reverts the current transaction
- *
- * @return int DB_OK on success. A DB_Error object on failure.
- */
- function rollback()
- {
- if ($this->transaction_opcount > 0) {
- if (!@mssql_select_db($this->_db, $this->connection)) {
- return $this->mssqlRaiseError(DB_ERROR_NODBSELECTED);
- }
- $result = @mssql_query('ROLLBACK TRAN', $this->connection);
- $this->transaction_opcount = 0;
- if (!$result) {
- return $this->mssqlRaiseError();
- }
- }
- return DB_OK;
- }
-
- // }}}
- // {{{ affectedRows()
-
- /**
- * Determines the number of rows affected by a data maniuplation query
- *
- * 0 is returned for queries that don't manipulate data.
- *
- * @return int the number of rows. A DB_Error object on failure.
- */
- function affectedRows()
- {
- if ($this->_last_query_manip) {
- $res = @mssql_query('select @@rowcount', $this->connection);
- if (!$res) {
- return $this->mssqlRaiseError();
- }
- $ar = @mssql_fetch_row($res);
- if (!$ar) {
- $result = 0;
- } else {
- @mssql_free_result($res);
- $result = $ar[0];
- }
- } else {
- $result = 0;
- }
- return $result;
- }
-
- // }}}
- // {{{ nextId()
-
- /**
- * Returns the next free id in a sequence
- *
- * @param string $seq_name name of the sequence
- * @param boolean $ondemand when true, the seqence is automatically
- * created if it does not exist
- *
- * @return int the next id number in the sequence.
- * A DB_Error object on failure.
- *
- * @see DB_common::nextID(), DB_common::getSequenceName(),
- * DB_mssql::createSequence(), DB_mssql::dropSequence()
- */
- function nextId($seq_name, $ondemand = true)
- {
- $seqname = $this->getSequenceName($seq_name);
- if (!@mssql_select_db($this->_db, $this->connection)) {
- return $this->mssqlRaiseError(DB_ERROR_NODBSELECTED);
- }
- $repeat = 0;
- do {
- $this->pushErrorHandling(PEAR_ERROR_RETURN);
- $result = $this->query("INSERT INTO $seqname (vapor) VALUES (0)");
- $this->popErrorHandling();
- if ($ondemand && DB::isError($result) &&
- ($result->getCode() == DB_ERROR || $result->getCode() == DB_ERROR_NOSUCHTABLE))
- {
- $repeat = 1;
- $result = $this->createSequence($seq_name);
- if (DB::isError($result)) {
- return $this->raiseError($result);
- }
- } elseif (!DB::isError($result)) {
- $result = $this->query("SELECT IDENT_CURRENT('$seqname')");
- if (DB::isError($result)) {
- /* Fallback code for MS SQL Server 7.0, which doesn't have
- * IDENT_CURRENT. This is *not* safe for concurrent
- * requests, and really, if you're using it, you're in a
- * world of hurt. Nevertheless, it's here to ensure BC. See
- * bug #181 for the gory details.*/
- $result = $this->query("SELECT @@IDENTITY FROM $seqname");
- }
- $repeat = 0;
- } else {
- $repeat = false;
- }
- } while ($repeat);
- if (DB::isError($result)) {
- return $this->raiseError($result);
- }
- $result = $result->fetchRow(DB_FETCHMODE_ORDERED);
- return $result[0];
- }
-
- /**
- * Creates a new sequence
- *
- * @param string $seq_name name of the new sequence
- *
- * @return int DB_OK on success. A DB_Error object on failure.
- *
- * @see DB_common::createSequence(), DB_common::getSequenceName(),
- * DB_mssql::nextID(), DB_mssql::dropSequence()
- */
- function createSequence($seq_name)
- {
- return $this->query('CREATE TABLE '
- . $this->getSequenceName($seq_name)
- . ' ([id] [int] IDENTITY (1, 1) NOT NULL,'
- . ' [vapor] [int] NULL)');
- }
-
- // }}}
- // {{{ dropSequence()
-
- /**
- * Deletes a sequence
- *
- * @param string $seq_name name of the sequence to be deleted
- *
- * @return int DB_OK on success. A DB_Error object on failure.
- *
- * @see DB_common::dropSequence(), DB_common::getSequenceName(),
- * DB_mssql::nextID(), DB_mssql::createSequence()
- */
- function dropSequence($seq_name)
- {
- return $this->query('DROP TABLE ' . $this->getSequenceName($seq_name));
- }
-
- // }}}
- // {{{ quoteIdentifier()
-
- /**
- * Quotes a string so it can be safely used as a table or column name
- *
- * @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) . ']';
- }
-
- // }}}
- // {{{ mssqlRaiseError()
-
- /**
- * Produces a DB_Error object regarding the current problem
- *
- * @param int $errno if the error is being manually raised pass a
- * DB_ERROR* constant here. If this isn't passed
- * the error information gathered from the DBMS.
- *
- * @return object the DB_Error object
- *
- * @see DB_common::raiseError(),
- * DB_mssql::errorNative(), DB_mssql::errorCode()
- */
- function mssqlRaiseError($code = null)
- {
- $message = @mssql_get_last_message();
- if (!$code) {
- $code = $this->errorNative();
- }
- return $this->raiseError($this->errorCode($code, $message),
- null, null, null, "$code - $message");
- }
-
- // }}}
- // {{{ errorNative()
-
- /**
- * Gets the DBMS' native error code produced by the last query
- *
- * @return int the DBMS' error code
- */
- function errorNative()
- {
- $res = @mssql_query('select @@ERROR as ErrorCode', $this->connection);
- if (!$res) {
- return DB_ERROR;
- }
- $row = @mssql_fetch_row($res);
- return $row[0];
- }
-
- // }}}
- // {{{ errorCode()
-
- /**
- * Determines PEAR::DB error code from mssql's native codes.
- *
- * If <var>$nativecode</var> isn't known yet, it will be looked up.
- *
- * @param mixed $nativecode mssql error code, if known
- * @return integer an error number from a DB error constant
- * @see errorNative()
- */
- function errorCode($nativecode = null, $msg = '')
- {
- if (!$nativecode) {
- $nativecode = $this->errorNative();
- }
- if (isset($this->errorcode_map[$nativecode])) {
- if ($nativecode == 3701
- && preg_match('/Cannot drop the index/i', $msg))
- {
- return DB_ERROR_NOT_FOUND;
- }
- return $this->errorcode_map[$nativecode];
- } else {
- 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.
- */
- if (!@mssql_select_db($this->_db, $this->connection)) {
- return $this->mssqlRaiseError(DB_ERROR_NODBSELECTED);
- }
- $id = @mssql_query("SELECT * FROM $result WHERE 1=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 $this->mssqlRaiseError(DB_ERROR_NEED_MORE_DATA);
- }
-
- if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
- $case_func = 'strtolower';
- } else {
- $case_func = 'strval';
- }
-
- $count = @mssql_num_fields($id);
- $res = array();
-
- if ($mode) {
- $res['num_fields'] = $count;
- }
-
- for ($i = 0; $i < $count; $i++) {
- if ($got_string) {
- $flags = $this->_mssql_field_flags($result,
- @mssql_field_name($id, $i));
- if (DB::isError($flags)) {
- return $flags;
- }
- } else {
- $flags = '';
- }
-
- $res[$i] = array(
- 'table' => $got_string ? $case_func($result) : '',
- 'name' => $case_func(@mssql_field_name($id, $i)),
- 'type' => @mssql_field_type($id, $i),
- 'len' => @mssql_field_length($id, $i),
- 'flags' => $flags,
- );
- if ($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) {
- @mssql_free_result($id);
- }
- return $res;
- }
-
- // }}}
- // {{{ _mssql_field_flags()
-
- /**
- * Get a column's flags
- *
- * Supports "not_null", "primary_key",
- * "auto_increment" (mssql identity), "timestamp" (mssql timestamp),
- * "unique_key" (mssql unique index, unique check or primary_key) and
- * "multiple_key" (multikey index)
- *
- * mssql timestamp is NOT similar to the mysql timestamp so this is maybe
- * not useful at all - is the behaviour of mysql_field_flags that primary
- * keys are alway unique? is the interpretation of multiple_key correct?
- *
- * @param string $table the table name
- * @param string $column the field name
- *
- * @return string the flags
- *
- * @access private
- * @author Joern Barthel <j_barthel@web.de>
- */
- function _mssql_field_flags($table, $column)
- {
- static $tableName = null;
- static $flags = array();
-
- if ($table != $tableName) {
-
- $flags = array();
- $tableName = $table;
-
- // get unique and primary keys
- $res = $this->getAll("EXEC SP_HELPINDEX $table", DB_FETCHMODE_ASSOC);
- if (DB::isError($res)) {
- return $res;
- }
-
- foreach ($res as $val) {
- $keys = explode(', ', $val['index_keys']);
-
- if (sizeof($keys) > 1) {
- foreach ($keys as $key) {
- $this->_add_flag($flags[$key], 'multiple_key');
- }
- }
-
- if (strpos($val['index_description'], 'primary key')) {
- foreach ($keys as $key) {
- $this->_add_flag($flags[$key], 'primary_key');
- }
- } elseif (strpos($val['index_description'], 'unique')) {
- foreach ($keys as $key) {
- $this->_add_flag($flags[$key], 'unique_key');
- }
- }
- }
-
- // get auto_increment, not_null and timestamp
- $res = $this->getAll("EXEC SP_COLUMNS $table", DB_FETCHMODE_ASSOC);
- if (DB::isError($res)) {
- return $res;
- }
-
- foreach ($res as $val) {
- $val = array_change_key_case($val, CASE_LOWER);
- if ($val['nullable'] == '0') {
- $this->_add_flag($flags[$val['column_name']], 'not_null');
- }
- if (strpos($val['type_name'], 'identity')) {
- $this->_add_flag($flags[$val['column_name']], 'auto_increment');
- }
- if (strpos($val['type_name'], 'timestamp')) {
- $this->_add_flag($flags[$val['column_name']], 'timestamp');
- }
- }
- }
-
- if (array_key_exists($column, $flags)) {
- return(implode(' ', $flags[$column]));
- }
- return '';
- }
-
- // }}}
- // {{{ _add_flag()
-
- /**
- * Adds a string to the flags array if the flag is not yet in there
- * - if there is no flag present the array is created
- *
- * @param array &$array the reference to the flag-array
- * @param string $value the flag value
- *
- * @return void
- *
- * @access private
- * @author Joern Barthel <j_barthel@web.de>
- */
- function _add_flag(&$array, $value)
- {
- if (!is_array($array)) {
- $array = array($value);
- } elseif (!in_array($value, $array)) {
- array_push($array, $value);
- }
- }
-
- // }}}
- // {{{ 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 name FROM sysobjects WHERE type = 'U'"
- . ' ORDER BY name';
- case 'views':
- return "SELECT name FROM sysobjects WHERE type = 'V'";
- default:
- return null;
- }
- }
-
- // }}}
-}
-
-/*
- * Local variables:
- * tab-width: 4
- * c-basic-offset: 4
- * End:
- */
-
-?>