New file |
0,0 → 1,942 |
<?php |
|
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */ |
|
/** |
* The PEAR DB driver for PHP's sybase extension |
* for interacting with Sybase 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 Antônio Carlos Venâncio Júnior <floripa@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: sybase.php,v 1.1 2008/07/07 18:00:39 mrflos Exp $ |
* @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 sybase extension |
* for interacting with Sybase databases |
* |
* These methods overload the ones declared in DB_common. |
* |
* WARNING: This driver may fail with multiple connections under the |
* same user/pass/host and different databases. |
* |
* @category Database |
* @package DB |
* @author Sterling Hughes <sterling@php.net> |
* @author Antônio Carlos Venâncio Júnior <floripa@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: 1.7.14RC1 |
* @link http://pear.php.net/package/DB |
*/ |
class DB_sybase extends DB_common |
{ |
// {{{ properties |
|
/** |
* The DB driver type (mysql, oci8, odbc, etc.) |
* @var string |
*/ |
var $phptype = 'sybase'; |
|
/** |
* The database syntax variant to be used (db2, access, etc.), if any |
* @var string |
*/ |
var $dbsyntax = 'sybase'; |
|
/** |
* 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 |
*/ |
var $errorcode_map = array( |
); |
|
/** |
* 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_sybase() |
{ |
$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 sybase driver supports the following extra DSN options: |
* + appname The application name to use on this connection. |
* Available since PEAR DB 1.7.0. |
* + charset The character set to use on this connection. |
* 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('sybase') && |
!PEAR::loadExtension('sybase_ct')) |
{ |
return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND); |
} |
|
$this->dsn = $dsn; |
if ($dsn['dbsyntax']) { |
$this->dbsyntax = $dsn['dbsyntax']; |
} |
|
$dsn['hostspec'] = $dsn['hostspec'] ? $dsn['hostspec'] : 'localhost'; |
$dsn['password'] = !empty($dsn['password']) ? $dsn['password'] : false; |
$dsn['charset'] = isset($dsn['charset']) ? $dsn['charset'] : false; |
$dsn['appname'] = isset($dsn['appname']) ? $dsn['appname'] : false; |
|
$connect_function = $persistent ? 'sybase_pconnect' : 'sybase_connect'; |
|
if ($dsn['username']) { |
$this->connection = @$connect_function($dsn['hostspec'], |
$dsn['username'], |
$dsn['password'], |
$dsn['charset'], |
$dsn['appname']); |
} else { |
return $this->raiseError(DB_ERROR_CONNECT_FAILED, |
null, null, null, |
'The DSN did not contain a username.'); |
} |
|
if (!$this->connection) { |
return $this->raiseError(DB_ERROR_CONNECT_FAILED, |
null, null, null, |
@sybase_get_last_message()); |
} |
|
if ($dsn['database']) { |
if (!@sybase_select_db($dsn['database'], $this->connection)) { |
return $this->raiseError(DB_ERROR_NODBSELECTED, |
null, null, null, |
@sybase_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() |
{ |
$ret = @sybase_close($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 = $query; |
if ($this->_db && !@sybase_select_db($this->_db, $this->connection)) { |
return $this->sybaseRaiseError(DB_ERROR_NODBSELECTED); |
} |
$query = $this->modifyQuery($query); |
if (!$this->autocommit && $ismanip) { |
if ($this->transaction_opcount == 0) { |
$result = @sybase_query('BEGIN TRANSACTION', $this->connection); |
if (!$result) { |
return $this->sybaseRaiseError(); |
} |
} |
$this->transaction_opcount++; |
} |
$result = @sybase_query($query, $this->connection); |
if (!$result) { |
return $this->sybaseRaiseError(); |
} |
if (is_resource($result)) { |
return $result; |
} |
// Determine which queries that should return data, and which |
// should return an error code only. |
return $ismanip ? DB_OK : $result; |
} |
|
// }}} |
// {{{ nextResult() |
|
/** |
* Move the internal sybase result pointer to the next available result |
* |
* @param a valid sybase result resource |
* |
* @access public |
* |
* @return true if a result is available otherwise return false |
*/ |
function nextResult($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) { |
if (!@sybase_data_seek($result, $rownum)) { |
return null; |
} |
} |
if ($fetchmode & DB_FETCHMODE_ASSOC) { |
if (function_exists('sybase_fetch_assoc')) { |
$arr = @sybase_fetch_assoc($result); |
} else { |
if ($arr = @sybase_fetch_array($result)) { |
foreach ($arr as $key => $value) { |
if (is_int($key)) { |
unset($arr[$key]); |
} |
} |
} |
} |
if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) { |
$arr = array_change_key_case($arr, CASE_LOWER); |
} |
} else { |
$arr = @sybase_fetch_row($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($result) ? sybase_free_result($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) |
{ |
$cols = @sybase_num_fields($result); |
if (!$cols) { |
return $this->sybaseRaiseError(); |
} |
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) |
{ |
$rows = @sybase_num_rows($result); |
if ($rows === false) { |
return $this->sybaseRaiseError(); |
} |
return $rows; |
} |
|
// }}} |
// {{{ affectedRows() |
|
/** |
* Determines the number of rows affected by a data maniuplation query |
* |
* 0 is returned for queries that don't manipulate data. |
* |
* @return int the number of rows. A DB_Error object on failure. |
*/ |
function affectedRows() |
{ |
if ($this->_last_query_manip) { |
$result = @sybase_affected_rows($this->connection); |
} else { |
$result = 0; |
} |
return $result; |
} |
|
// }}} |
// {{{ nextId() |
|
/** |
* Returns the next free id in a sequence |
* |
* @param string $seq_name name of the sequence |
* @param boolean $ondemand when true, the seqence is automatically |
* created if it does not exist |
* |
* @return int the next id number in the sequence. |
* A DB_Error object on failure. |
* |
* @see DB_common::nextID(), DB_common::getSequenceName(), |
* DB_sybase::createSequence(), DB_sybase::dropSequence() |
*/ |
function nextId($seq_name, $ondemand = true) |
{ |
$seqname = $this->getSequenceName($seq_name); |
if ($this->_db && !@sybase_select_db($this->_db, $this->connection)) { |
return $this->sybaseRaiseError(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 @@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 $seq_name name of the new sequence |
* |
* @return int DB_OK on success. A DB_Error object on failure. |
* |
* @see DB_common::createSequence(), DB_common::getSequenceName(), |
* DB_sybase::nextID(), DB_sybase::dropSequence() |
*/ |
function createSequence($seq_name) |
{ |
return $this->query('CREATE TABLE ' |
. $this->getSequenceName($seq_name) |
. ' (id numeric(10, 0) IDENTITY NOT NULL,' |
. ' vapor int NULL)'); |
} |
|
// }}} |
// {{{ dropSequence() |
|
/** |
* Deletes a sequence |
* |
* @param string $seq_name name of the sequence to be deleted |
* |
* @return int DB_OK on success. A DB_Error object on failure. |
* |
* @see DB_common::dropSequence(), DB_common::getSequenceName(), |
* DB_sybase::nextID(), DB_sybase::createSequence() |
*/ |
function dropSequence($seq_name) |
{ |
return $this->query('DROP TABLE ' . $this->getSequenceName($seq_name)); |
} |
|
// }}} |
// {{{ quoteFloat() |
|
/** |
* Formats a float value for use within a query in a locale-independent |
* manner. |
* |
* @param float the float value to be quoted. |
* @return string the quoted string. |
* @see DB_common::quoteSmart() |
* @since Method available since release 1.7.8. |
*/ |
function quoteFloat($float) { |
return $this->escapeSimple(str_replace(',', '.', strval(floatval($float)))); |
} |
|
// }}} |
// {{{ 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 ($this->_db && !@sybase_select_db($this->_db, $this->connection)) { |
return $this->sybaseRaiseError(DB_ERROR_NODBSELECTED); |
} |
$result = @sybase_query('COMMIT', $this->connection); |
$this->transaction_opcount = 0; |
if (!$result) { |
return $this->sybaseRaiseError(); |
} |
} |
return DB_OK; |
} |
|
// }}} |
// {{{ rollback() |
|
/** |
* Reverts the current transaction |
* |
* @return int DB_OK on success. A DB_Error object on failure. |
*/ |
function rollback() |
{ |
if ($this->transaction_opcount > 0) { |
if ($this->_db && !@sybase_select_db($this->_db, $this->connection)) { |
return $this->sybaseRaiseError(DB_ERROR_NODBSELECTED); |
} |
$result = @sybase_query('ROLLBACK', $this->connection); |
$this->transaction_opcount = 0; |
if (!$result) { |
return $this->sybaseRaiseError(); |
} |
} |
return DB_OK; |
} |
|
// }}} |
// {{{ sybaseRaiseError() |
|
/** |
* Produces a DB_Error object regarding the current problem |
* |
* @param int $errno if the error is being manually raised pass a |
* DB_ERROR* constant here. If this isn't passed |
* the error information gathered from the DBMS. |
* |
* @return object the DB_Error object |
* |
* @see DB_common::raiseError(), |
* DB_sybase::errorNative(), DB_sybase::errorCode() |
*/ |
function sybaseRaiseError($errno = null) |
{ |
$native = $this->errorNative(); |
if ($errno === null) { |
$errno = $this->errorCode($native); |
} |
return $this->raiseError($errno, null, null, null, $native); |
} |
|
// }}} |
// {{{ errorNative() |
|
/** |
* Gets the DBMS' native error message produced by the last query |
* |
* @return string the DBMS' error message |
*/ |
function errorNative() |
{ |
return @sybase_get_last_message(); |
} |
|
// }}} |
// {{{ errorCode() |
|
/** |
* Determines PEAR::DB error code from the database's text error message. |
* |
* @param string $errormsg error message returned from the database |
* @return integer an error number from a DB error constant |
*/ |
function errorCode($errormsg) |
{ |
static $error_regexps; |
|
// PHP 5.2+ prepends the function name to $php_errormsg, so we need |
// this hack to work around it, per bug #9599. |
$errormsg = preg_replace('/^sybase[a-z_]+\(\): /', '', $errormsg); |
|
if (!isset($error_regexps)) { |
$error_regexps = array( |
'/Incorrect syntax near/' |
=> DB_ERROR_SYNTAX, |
'/^Unclosed quote before the character string [\"\'].*[\"\']\./' |
=> DB_ERROR_SYNTAX, |
'/Implicit conversion (from datatype|of NUMERIC value)/i' |
=> DB_ERROR_INVALID_NUMBER, |
'/Cannot drop the table [\"\'].+[\"\'], because it doesn\'t exist in the system catalogs\./' |
=> DB_ERROR_NOSUCHTABLE, |
'/Only the owner of object [\"\'].+[\"\'] or a user with System Administrator \(SA\) role can run this command\./' |
=> DB_ERROR_ACCESS_VIOLATION, |
'/^.+ permission denied on object .+, database .+, owner .+/' |
=> DB_ERROR_ACCESS_VIOLATION, |
'/^.* permission denied, database .+, owner .+/' |
=> DB_ERROR_ACCESS_VIOLATION, |
'/[^.*] not found\./' |
=> DB_ERROR_NOSUCHTABLE, |
'/There is already an object named/' |
=> DB_ERROR_ALREADY_EXISTS, |
'/Invalid column name/' |
=> DB_ERROR_NOSUCHFIELD, |
'/does not allow null values/' |
=> DB_ERROR_CONSTRAINT_NOT_NULL, |
'/Command has been aborted/' |
=> DB_ERROR_CONSTRAINT, |
'/^Cannot drop the index .* because it doesn\'t exist/i' |
=> DB_ERROR_NOT_FOUND, |
'/^There is already an index/i' |
=> DB_ERROR_ALREADY_EXISTS, |
'/^There are fewer columns in the INSERT statement than values specified/i' |
=> DB_ERROR_VALUE_COUNT_ON_ROW, |
'/Divide by zero/i' |
=> DB_ERROR_DIVZERO, |
); |
} |
|
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 $mode a valid tableInfo mode |
* |
* @return array an associative array with the information requested. |
* A DB_Error object on failure. |
* |
* @see DB_common::tableInfo() |
* @since Method available since Release 1.6.0 |
*/ |
function tableInfo($result, $mode = null) |
{ |
if (is_string($result)) { |
/* |
* Probably received a table name. |
* Create a result resource identifier. |
*/ |
if ($this->_db && !@sybase_select_db($this->_db, $this->connection)) { |
return $this->sybaseRaiseError(DB_ERROR_NODBSELECTED); |
} |
$id = @sybase_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 $this->sybaseRaiseError(DB_ERROR_NEED_MORE_DATA); |
} |
|
if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) { |
$case_func = 'strtolower'; |
} else { |
$case_func = 'strval'; |
} |
|
$count = @sybase_num_fields($id); |
$res = array(); |
|
if ($mode) { |
$res['num_fields'] = $count; |
} |
|
for ($i = 0; $i < $count; $i++) { |
$f = @sybase_fetch_field($id, $i); |
// column_source is often blank |
$res[$i] = array( |
'table' => $got_string |
? $case_func($result) |
: $case_func($f->column_source), |
'name' => $case_func($f->name), |
'type' => $f->type, |
'len' => $f->max_length, |
'flags' => '', |
); |
if ($res[$i]['table']) { |
$res[$i]['flags'] = $this->_sybase_field_flags( |
$res[$i]['table'], $res[$i]['name']); |
} |
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) { |
@sybase_free_result($id); |
} |
return $res; |
} |
|
// }}} |
// {{{ _sybase_field_flags() |
|
/** |
* Get the flags for a field |
* |
* Currently supports: |
* + <samp>unique_key</samp> (unique index, unique check or primary_key) |
* + <samp>multiple_key</samp> (multi-key index) |
* |
* @param string $table the table name |
* @param string $column the field name |
* |
* @return string space delimited string of flags. Empty string if none. |
* |
* @access private |
*/ |
function _sybase_field_flags($table, $column) |
{ |
static $tableName = null; |
static $flags = array(); |
|
if ($table != $tableName) { |
$flags = array(); |
$tableName = $table; |
|
/* We're running sp_helpindex directly because it doesn't exist in |
* older versions of ASE -- unfortunately, we can't just use |
* DB::isError() because the user may be using callback error |
* handling. */ |
$res = @sybase_query("sp_helpindex $table", $this->connection); |
|
if ($res === false || $res === true) { |
// Fake a valid response for BC reasons. |
return ''; |
} |
|
while (($val = sybase_fetch_assoc($res)) !== false) { |
if (!isset($val['index_keys'])) { |
/* No useful information returned. Break and be done with |
* it, which preserves the pre-1.7.9 behaviour. */ |
break; |
} |
|
$keys = explode(', ', trim($val['index_keys'])); |
|
if (sizeof($keys) > 1) { |
foreach ($keys as $key) { |
$this->_add_flag($flags[$key], 'multiple_key'); |
} |
} |
|
if (strpos($val['index_description'], 'unique')) { |
foreach ($keys as $key) { |
$this->_add_flag($flags[$key], 'unique_key'); |
} |
} |
} |
|
sybase_free_result($res); |
|
} |
|
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 reference of flags array to add a value to |
* @param mixed $value value to add to the flag array |
* |
* @return void |
* |
* @access private |
*/ |
function _add_flag(&$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: |
*/ |
|
?> |