From 2c5952533c6cb98e091219d57e297b97d61b4f87 Mon Sep 17 00:00:00 2001 From: thomascube Date: Mon, 9 Jun 2008 19:06:12 +0000 Subject: Remove PEAR::DB from release branch (MDB2 is our choice) --- program/lib/DB.php | 1489 ---------------------------------------------------- 1 file changed, 1489 deletions(-) delete mode 100644 program/lib/DB.php (limited to 'program/lib/DB.php') diff --git a/program/lib/DB.php b/program/lib/DB.php deleted file mode 100644 index f76913367..000000000 --- a/program/lib/DB.php +++ /dev/null @@ -1,1489 +0,0 @@ - - * @author Tomas V.V.Cox - * @author Daniel Convissor - * @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 PEAR class so it can be extended from - */ -require_once 'PEAR.php'; - - -// {{{ constants -// {{{ error codes - -/**#@+ - * One of PEAR DB's portable error codes. - * @see DB_common::errorCode(), DB::errorMessage() - * - * {@internal If you add an error code here, make sure you also add a textual - * version of it in DB::errorMessage().}} - */ - -/** - * The code returned by many methods upon success - */ -define('DB_OK', 1); - -/** - * Unkown error - */ -define('DB_ERROR', -1); - -/** - * Syntax error - */ -define('DB_ERROR_SYNTAX', -2); - -/** - * Tried to insert a duplicate value into a primary or unique index - */ -define('DB_ERROR_CONSTRAINT', -3); - -/** - * An identifier in the query refers to a non-existant object - */ -define('DB_ERROR_NOT_FOUND', -4); - -/** - * Tried to create a duplicate object - */ -define('DB_ERROR_ALREADY_EXISTS', -5); - -/** - * The current driver does not support the action you attempted - */ -define('DB_ERROR_UNSUPPORTED', -6); - -/** - * The number of parameters does not match the number of placeholders - */ -define('DB_ERROR_MISMATCH', -7); - -/** - * A literal submitted did not match the data type expected - */ -define('DB_ERROR_INVALID', -8); - -/** - * The current DBMS does not support the action you attempted - */ -define('DB_ERROR_NOT_CAPABLE', -9); - -/** - * A literal submitted was too long so the end of it was removed - */ -define('DB_ERROR_TRUNCATED', -10); - -/** - * A literal number submitted did not match the data type expected - */ -define('DB_ERROR_INVALID_NUMBER', -11); - -/** - * A literal date submitted did not match the data type expected - */ -define('DB_ERROR_INVALID_DATE', -12); - -/** - * Attempt to divide something by zero - */ -define('DB_ERROR_DIVZERO', -13); - -/** - * A database needs to be selected - */ -define('DB_ERROR_NODBSELECTED', -14); - -/** - * Could not create the object requested - */ -define('DB_ERROR_CANNOT_CREATE', -15); - -/** - * Could not drop the database requested because it does not exist - */ -define('DB_ERROR_CANNOT_DROP', -17); - -/** - * An identifier in the query refers to a non-existant table - */ -define('DB_ERROR_NOSUCHTABLE', -18); - -/** - * An identifier in the query refers to a non-existant column - */ -define('DB_ERROR_NOSUCHFIELD', -19); - -/** - * The data submitted to the method was inappropriate - */ -define('DB_ERROR_NEED_MORE_DATA', -20); - -/** - * The attempt to lock the table failed - */ -define('DB_ERROR_NOT_LOCKED', -21); - -/** - * The number of columns doesn't match the number of values - */ -define('DB_ERROR_VALUE_COUNT_ON_ROW', -22); - -/** - * The DSN submitted has problems - */ -define('DB_ERROR_INVALID_DSN', -23); - -/** - * Could not connect to the database - */ -define('DB_ERROR_CONNECT_FAILED', -24); - -/** - * The PHP extension needed for this DBMS could not be found - */ -define('DB_ERROR_EXTENSION_NOT_FOUND',-25); - -/** - * The present user has inadequate permissions to perform the task requestd - */ -define('DB_ERROR_ACCESS_VIOLATION', -26); - -/** - * The database requested does not exist - */ -define('DB_ERROR_NOSUCHDB', -27); - -/** - * Tried to insert a null value into a column that doesn't allow nulls - */ -define('DB_ERROR_CONSTRAINT_NOT_NULL',-29); -/**#@-*/ - - -// }}} -// {{{ prepared statement-related - - -/**#@+ - * Identifiers for the placeholders used in prepared statements. - * @see DB_common::prepare() - */ - -/** - * Indicates a scalar (?) placeholder was used - * - * Quote and escape the value as necessary. - */ -define('DB_PARAM_SCALAR', 1); - -/** - * Indicates an opaque (&) placeholder was used - * - * The value presented is a file name. Extract the contents of that file - * and place them in this column. - */ -define('DB_PARAM_OPAQUE', 2); - -/** - * Indicates a misc (!) placeholder was used - * - * The value should not be quoted or escaped. - */ -define('DB_PARAM_MISC', 3); -/**#@-*/ - - -// }}} -// {{{ binary data-related - - -/**#@+ - * The different ways of returning binary data from queries. - */ - -/** - * Sends the fetched data straight through to output - */ -define('DB_BINMODE_PASSTHRU', 1); - -/** - * Lets you return data as usual - */ -define('DB_BINMODE_RETURN', 2); - -/** - * Converts the data to hex format before returning it - * - * For example the string "123" would become "313233". - */ -define('DB_BINMODE_CONVERT', 3); -/**#@-*/ - - -// }}} -// {{{ fetch modes - - -/**#@+ - * Fetch Modes. - * @see DB_common::setFetchMode() - */ - -/** - * Indicates the current default fetch mode should be used - * @see DB_common::$fetchmode - */ -define('DB_FETCHMODE_DEFAULT', 0); - -/** - * Column data indexed by numbers, ordered from 0 and up - */ -define('DB_FETCHMODE_ORDERED', 1); - -/** - * Column data indexed by column names - */ -define('DB_FETCHMODE_ASSOC', 2); - -/** - * Column data as object properties - */ -define('DB_FETCHMODE_OBJECT', 3); - -/** - * For multi-dimensional results, make the column name the first level - * of the array and put the row number in the second level of the array - * - * This is flipped from the normal behavior, which puts the row numbers - * in the first level of the array and the column names in the second level. - */ -define('DB_FETCHMODE_FLIPPED', 4); -/**#@-*/ - -/**#@+ - * Old fetch modes. Left here for compatibility. - */ -define('DB_GETMODE_ORDERED', DB_FETCHMODE_ORDERED); -define('DB_GETMODE_ASSOC', DB_FETCHMODE_ASSOC); -define('DB_GETMODE_FLIPPED', DB_FETCHMODE_FLIPPED); -/**#@-*/ - - -// }}} -// {{{ tableInfo() && autoPrepare()-related - - -/**#@+ - * The type of information to return from the tableInfo() method. - * - * Bitwised constants, so they can be combined using | - * and removed using ^. - * - * @see DB_common::tableInfo() - * - * {@internal Since the TABLEINFO constants are bitwised, if more of them are - * added in the future, make sure to adjust DB_TABLEINFO_FULL accordingly.}} - */ -define('DB_TABLEINFO_ORDER', 1); -define('DB_TABLEINFO_ORDERTABLE', 2); -define('DB_TABLEINFO_FULL', 3); -/**#@-*/ - - -/**#@+ - * The type of query to create with the automatic query building methods. - * @see DB_common::autoPrepare(), DB_common::autoExecute() - */ -define('DB_AUTOQUERY_INSERT', 1); -define('DB_AUTOQUERY_UPDATE', 2); -/**#@-*/ - - -// }}} -// {{{ portability modes - - -/**#@+ - * Portability Modes. - * - * Bitwised constants, so they can be combined using | - * and removed using ^. - * - * @see DB_common::setOption() - * - * {@internal Since the PORTABILITY constants are bitwised, if more of them are - * added in the future, make sure to adjust DB_PORTABILITY_ALL accordingly.}} - */ - -/** - * Turn off all portability features - */ -define('DB_PORTABILITY_NONE', 0); - -/** - * Convert names of tables and fields to lower case - * when using the get*(), fetch*() and tableInfo() methods - */ -define('DB_PORTABILITY_LOWERCASE', 1); - -/** - * Right trim the data output by get*() and fetch*() - */ -define('DB_PORTABILITY_RTRIM', 2); - -/** - * Force reporting the number of rows deleted - */ -define('DB_PORTABILITY_DELETE_COUNT', 4); - -/** - * Enable hack that makes numRows() work in Oracle - */ -define('DB_PORTABILITY_NUMROWS', 8); - -/** - * Makes certain error messages in certain drivers compatible - * with those from other DBMS's - * - * + mysql, mysqli: change unique/primary key constraints - * DB_ERROR_ALREADY_EXISTS -> DB_ERROR_CONSTRAINT - * - * + odbc(access): MS's ODBC driver reports 'no such field' as code - * 07001, which means 'too few parameters.' When this option is on - * that code gets mapped to DB_ERROR_NOSUCHFIELD. - */ -define('DB_PORTABILITY_ERRORS', 16); - -/** - * Convert null values to empty strings in data output by - * get*() and fetch*() - */ -define('DB_PORTABILITY_NULL_TO_EMPTY', 32); - -/** - * Turn on all portability features - */ -define('DB_PORTABILITY_ALL', 63); -/**#@-*/ - -// }}} - - -// }}} -// {{{ class DB - -/** - * Database independent query interface - * - * The main "DB" class is simply a container class with some static - * methods for creating DB objects as well as some utility functions - * common to all parts of DB. - * - * The object model of DB is as follows (indentation means inheritance): - * 
- * DB           The main DB class.  This is simply a utility class
- *              with some "static" methods for creating DB objects as
- *              well as common utility functions for other DB classes.
- *
- * DB_common    The base for each DB implementation.  Provides default
- * |            implementations (in OO lingo virtual methods) for
- * |            the actual DB implementations as well as a bunch of
- * |            query utility functions.
- * |
- * +-DB_mysql   The DB implementation for MySQL.  Inherits DB_common.
- *              When calling DB::factory or DB::connect for MySQL
- *              connections, the object returned is an instance of this
- *              class.
- *
- * - * @category Database - * @package DB - * @author Stig Bakken - * @author Tomas V.V.Cox - * @author Daniel Convissor - * @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 -{ - // {{{ &factory() - - /** - * Create a new DB object for the specified database type but don't - * connect to the database - * - * @param string $type the database type (eg "mysql") - * @param array $options an associative array of option names and values - * - * @return object a new DB object. A DB_Error object on failure. - * - * @see DB_common::setOption() - */ - function &factory($type, $options = false) - { - if (!is_array($options)) { - $options = array('persistent' => $options); - } - - if (isset($options['debug']) && $options['debug'] >= 2) { - // expose php errors with sufficient debug level - include_once "DB/{$type}.php"; - } else { - @include_once "DB/{$type}.php"; - } - - $classname = "DB_${type}"; - - if (!class_exists($classname)) { - $tmp = PEAR::raiseError(null, DB_ERROR_NOT_FOUND, null, null, - "Unable to include the DB/{$type}.php" - . " file for '$dsn'", - 'DB_Error', true); - return $tmp; - } - - @$obj = new $classname; - - foreach ($options as $option => $value) { - $test = $obj->setOption($option, $value); - if (DB::isError($test)) { - return $test; - } - } - - return $obj; - } - - // }}} - // {{{ &connect() - - /** - * Create a new DB object including a connection to the specified database - * - * Example 1. - * - * require_once 'DB.php'; - * - * $dsn = 'pgsql://user:password@host/database'; - * $options = array( - * 'debug' => 2, - * 'portability' => DB_PORTABILITY_ALL, - * ); - * - * $db =& DB::connect($dsn, $options); - * if (PEAR::isError($db)) { - * die($db->getMessage()); - * } - * - * - * @param mixed $dsn the string "data source name" or array in the - * format returned by DB::parseDSN() - * @param array $options an associative array of option names and values - * - * @return object a new DB object. A DB_Error object on failure. - * - * @uses DB_dbase::connect(), DB_fbsql::connect(), DB_ibase::connect(), - * DB_ifx::connect(), DB_msql::connect(), DB_mssql::connect(), - * DB_mysql::connect(), DB_mysqli::connect(), DB_oci8::connect(), - * DB_odbc::connect(), DB_pgsql::connect(), DB_sqlite::connect(), - * DB_sybase::connect() - * - * @uses DB::parseDSN(), DB_common::setOption(), PEAR::isError() - */ - function &connect($dsn, $options = array()) - { - $dsninfo = DB::parseDSN($dsn); - $type = $dsninfo['phptype']; - - if (!is_array($options)) { - /* - * For backwards compatibility. $options used to be boolean, - * indicating whether the connection should be persistent. - */ - $options = array('persistent' => $options); - } - - if (isset($options['debug']) && $options['debug'] >= 2) { - // expose php errors with sufficient debug level - include_once "DB/${type}.php"; - } else { - @include_once "DB/${type}.php"; - } - - $classname = "DB_${type}"; - if (!class_exists($classname)) { - $tmp = PEAR::raiseError(null, DB_ERROR_NOT_FOUND, null, null, - "Unable to include the DB/{$type}.php" - . " file for '$dsn'", - 'DB_Error', true); - return $tmp; - } - - @$obj = new $classname; - - foreach ($options as $option => $value) { - $test = $obj->setOption($option, $value); - if (DB::isError($test)) { - return $test; - } - } - - $err = $obj->connect($dsninfo, $obj->getOption('persistent')); - if (DB::isError($err)) { - if (is_array($dsn)) { - $err->addUserInfo(DB::getDSNString($dsn, true)); - } else { - $err->addUserInfo($dsn); - } - return $err; - } - - return $obj; - } - - // }}} - // {{{ apiVersion() - - /** - * Return the DB API version - * - * @return string the DB API version number - */ - function apiVersion() - { - return '1.7.13'; - } - - // }}} - // {{{ isError() - - /** - * Determines if a variable is a DB_Error object - * - * @param mixed $value the variable to check - * - * @return bool whether $value is DB_Error object - */ - function isError($value) - { - return is_a($value, 'DB_Error'); - } - - // }}} - // {{{ isConnection() - - /** - * Determines if a value is a DB_ object - * - * @param mixed $value the value to test - * - * @return bool whether $value is a DB_ object - */ - function isConnection($value) - { - return (is_object($value) && - is_subclass_of($value, 'db_common') && - method_exists($value, 'simpleQuery')); - } - - // }}} - // {{{ isManip() - - /** - * Tell whether a query is a data manipulation or data definition query - * - * Examples of data manipulation queries are INSERT, UPDATE and DELETE. - * Examples of data definition queries are CREATE, DROP, ALTER, GRANT, - * REVOKE. - * - * @param string $query the query - * - * @return boolean whether $query is a data manipulation query - */ - function isManip($query) - { - $manips = 'INSERT|UPDATE|DELETE|REPLACE|' - . 'CREATE|DROP|' - . 'LOAD DATA|SELECT .* INTO .* FROM|COPY|' - . 'ALTER|GRANT|REVOKE|' - . 'LOCK|UNLOCK'; - if (preg_match('/^\s*"?(' . $manips . ')\s+/i', $query)) { - return true; - } - return false; - } - - // }}} - // {{{ errorMessage() - - /** - * Return a textual error message for a DB error code - * - * @param integer $value the DB error code - * - * @return string the error message or false if the error code was - * not recognized - */ - function errorMessage($value) - { - static $errorMessages; - if (!isset($errorMessages)) { - $errorMessages = array( - DB_ERROR => 'unknown error', - DB_ERROR_ACCESS_VIOLATION => 'insufficient permissions', - DB_ERROR_ALREADY_EXISTS => 'already exists', - DB_ERROR_CANNOT_CREATE => 'can not create', - DB_ERROR_CANNOT_DROP => 'can not drop', - DB_ERROR_CONNECT_FAILED => 'connect failed', - DB_ERROR_CONSTRAINT => 'constraint violation', - DB_ERROR_CONSTRAINT_NOT_NULL=> 'null value violates not-null constraint', - DB_ERROR_DIVZERO => 'division by zero', - DB_ERROR_EXTENSION_NOT_FOUND=> 'extension not found', - DB_ERROR_INVALID => 'invalid', - DB_ERROR_INVALID_DATE => 'invalid date or time', - DB_ERROR_INVALID_DSN => 'invalid DSN', - DB_ERROR_INVALID_NUMBER => 'invalid number', - DB_ERROR_MISMATCH => 'mismatch', - DB_ERROR_NEED_MORE_DATA => 'insufficient data supplied', - DB_ERROR_NODBSELECTED => 'no database selected', - DB_ERROR_NOSUCHDB => 'no such database', - DB_ERROR_NOSUCHFIELD => 'no such field', - DB_ERROR_NOSUCHTABLE => 'no such table', - DB_ERROR_NOT_CAPABLE => 'DB backend not capable', - DB_ERROR_NOT_FOUND => 'not found', - DB_ERROR_NOT_LOCKED => 'not locked', - DB_ERROR_SYNTAX => 'syntax error', - DB_ERROR_UNSUPPORTED => 'not supported', - DB_ERROR_TRUNCATED => 'truncated', - DB_ERROR_VALUE_COUNT_ON_ROW => 'value count on row', - DB_OK => 'no error', - ); - } - - if (DB::isError($value)) { - $value = $value->getCode(); - } - - return isset($errorMessages[$value]) ? $errorMessages[$value] - : $errorMessages[DB_ERROR]; - } - - // }}} - // {{{ parseDSN() - - /** - * Parse a data source name - * - * Additional keys can be added by appending a URI query string to the - * end of the DSN. - * - * The format of the supplied DSN is in its fullest form: - * - * phptype(dbsyntax)://username:password@protocol+hostspec/database?option=8&another=true - * - * - * Most variations are allowed: - * - * phptype://username:password@protocol+hostspec:110//usr/db_file.db?mode=0644 - * phptype://username:password@hostspec/database_name - * phptype://username:password@hostspec - * phptype://username@hostspec - * phptype://hostspec/database - * phptype://hostspec - * phptype(dbsyntax) - * phptype - * - * - * @param string $dsn Data Source Name to be parsed - * - * @return array an associative array with the following keys: - * + phptype: Database backend used in PHP (mysql, odbc etc.) - * + dbsyntax: Database used with regards to SQL syntax etc. - * + protocol: Communication protocol to use (tcp, unix etc.) - * + hostspec: Host specification (hostname[:port]) - * + database: Database to use on the DBMS server - * + username: User name for login - * + password: Password for login - */ - function parseDSN($dsn) - { - $parsed = array( - 'phptype' => false, - 'dbsyntax' => false, - 'username' => false, - 'password' => false, - 'protocol' => false, - 'hostspec' => false, - 'port' => false, - 'socket' => false, - 'database' => false, - ); - - if (is_array($dsn)) { - $dsn = array_merge($parsed, $dsn); - if (!$dsn['dbsyntax']) { - $dsn['dbsyntax'] = $dsn['phptype']; - } - return $dsn; - } - - // Find phptype and dbsyntax - if (($pos = strpos($dsn, '://')) !== false) { - $str = substr($dsn, 0, $pos); - $dsn = substr($dsn, $pos + 3); - } else { - $str = $dsn; - $dsn = null; - } - - // Get phptype and dbsyntax - // $str => phptype(dbsyntax) - if (preg_match('|^(.+?)\((.*?)\)$|', $str, $arr)) { - $parsed['phptype'] = $arr[1]; - $parsed['dbsyntax'] = !$arr[2] ? $arr[1] : $arr[2]; - } else { - $parsed['phptype'] = $str; - $parsed['dbsyntax'] = $str; - } - - if (!count($dsn)) { - return $parsed; - } - - // Get (if found): username and password - // $dsn => username:password@protocol+hostspec/database - if (($at = strrpos($dsn,'@')) !== false) { - $str = substr($dsn, 0, $at); - $dsn = substr($dsn, $at + 1); - if (($pos = strpos($str, ':')) !== false) { - $parsed['username'] = rawurldecode(substr($str, 0, $pos)); - $parsed['password'] = rawurldecode(substr($str, $pos + 1)); - } else { - $parsed['username'] = rawurldecode($str); - } - } - - // Find protocol and hostspec - - if (preg_match('|^([^(]+)\((.*?)\)/?(.*?)$|', $dsn, $match)) { - // $dsn => proto(proto_opts)/database - $proto = $match[1]; - $proto_opts = $match[2] ? $match[2] : false; - $dsn = $match[3]; - - } else { - // $dsn => protocol+hostspec/database (old format) - if (strpos($dsn, '+') !== false) { - list($proto, $dsn) = explode('+', $dsn, 2); - } - if (strpos($dsn, '/') !== false) { - list($proto_opts, $dsn) = explode('/', $dsn, 2); - } else { - $proto_opts = $dsn; - $dsn = null; - } - } - - // process the different protocol options - $parsed['protocol'] = (!empty($proto)) ? $proto : 'tcp'; - $proto_opts = rawurldecode($proto_opts); - if (strpos($proto_opts, ':') !== false) { - list($proto_opts, $parsed['port']) = explode(':', $proto_opts); - } - if ($parsed['protocol'] == 'tcp') { - $parsed['hostspec'] = $proto_opts; - } elseif ($parsed['protocol'] == 'unix') { - $parsed['socket'] = $proto_opts; - } - - // Get dabase if any - // $dsn => database - if ($dsn) { - if (($pos = strpos($dsn, '?')) === false) { - // /database - $parsed['database'] = rawurldecode($dsn); - } else { - // /database?param1=value1¶m2=value2 - $parsed['database'] = rawurldecode(substr($dsn, 0, $pos)); - $dsn = substr($dsn, $pos + 1); - if (strpos($dsn, '&') !== false) { - $opts = explode('&', $dsn); - } else { // database?param1=value1 - $opts = array($dsn); - } - foreach ($opts as $opt) { - list($key, $value) = explode('=', $opt); - if (!isset($parsed[$key])) { - // don't allow params overwrite - $parsed[$key] = rawurldecode($value); - } - } - } - } - - return $parsed; - } - - // }}} - // {{{ getDSNString() - - /** - * Returns the given DSN in a string format suitable for output. - * - * @param array|string the DSN to parse and format - * @param boolean true to hide the password, false to include it - * @return string - */ - function getDSNString($dsn, $hidePassword) { - /* Calling parseDSN will ensure that we have all the array elements - * defined, and means that we deal with strings and array in the same - * manner. */ - $dsnArray = DB::parseDSN($dsn); - - if ($hidePassword) { - $dsnArray['password'] = 'PASSWORD'; - } - - /* Protocol is special-cased, as using the default "tcp" along with an - * Oracle TNS connection string fails. */ - if (is_string($dsn) && strpos($dsn, 'tcp') === false && $dsnArray['protocol'] == 'tcp') { - $dsnArray['protocol'] = false; - } - - // Now we just have to construct the actual string. This is ugly. - $dsnString = $dsnArray['phptype']; - if ($dsnArray['dbsyntax']) { - $dsnString .= '('.$dsnArray['dbsyntax'].')'; - } - $dsnString .= '://' - .$dsnArray['username'] - .':' - .$dsnArray['password'] - .'@' - .$dsnArray['protocol']; - if ($dsnArray['socket']) { - $dsnString .= '('.$dsnArray['socket'].')'; - } - if ($dsnArray['protocol'] && $dsnArray['hostspec']) { - $dsnString .= '+'; - } - $dsnString .= $dsnArray['hostspec']; - if ($dsnArray['port']) { - $dsnString .= ':'.$dsnArray['port']; - } - $dsnString .= '/'.$dsnArray['database']; - - /* Option handling. Unfortunately, parseDSN simply places options into - * the top-level array, so we'll first get rid of the fields defined by - * DB and see what's left. */ - unset($dsnArray['phptype'], - $dsnArray['dbsyntax'], - $dsnArray['username'], - $dsnArray['password'], - $dsnArray['protocol'], - $dsnArray['socket'], - $dsnArray['hostspec'], - $dsnArray['port'], - $dsnArray['database'] - ); - if (count($dsnArray) > 0) { - $dsnString .= '?'; - $i = 0; - foreach ($dsnArray as $key => $value) { - if (++$i > 1) { - $dsnString .= '&'; - } - $dsnString .= $key.'='.$value; - } - } - - return $dsnString; - } - - // }}} -} - -// }}} -// {{{ class DB_Error - -/** - * DB_Error implements a class for reporting portable database error - * messages - * - * @category Database - * @package DB - * @author Stig Bakken - * @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_Error extends PEAR_Error -{ - // {{{ constructor - - /** - * DB_Error constructor - * - * @param mixed $code DB error code, or string with error message - * @param int $mode what "error mode" to operate in - * @param int $level what error level to use for $mode & - * PEAR_ERROR_TRIGGER - * @param mixed $debuginfo additional debug info, such as the last query - * - * @see PEAR_Error - */ - function DB_Error($code = DB_ERROR, $mode = PEAR_ERROR_RETURN, - $level = E_USER_NOTICE, $debuginfo = null) - { - if (is_int($code)) { - $this->PEAR_Error('DB Error: ' . DB::errorMessage($code), $code, - $mode, $level, $debuginfo); - } else { - $this->PEAR_Error("DB Error: $code", DB_ERROR, - $mode, $level, $debuginfo); - } - } - - // }}} -} - -// }}} -// {{{ class DB_result - -/** - * This class implements a wrapper for a DB result set - * - * A new instance of this class will be returned by the DB implementation - * after processing a query that returns data. - * - * @category Database - * @package DB - * @author Stig Bakken - * @copyright 1997-2007 The PHP Group - * @license http://www.php.net/license/3_0.txt PHP License 3.0 - * @version Release: 1.7.13 - * @link http://pear.php.net/package/DB - */ -class DB_result -{ - // {{{ properties - - /** - * Should results be freed automatically when there are no more rows? - * @var boolean - * @see DB_common::$options - */ - var $autofree; - - /** - * A reference to the DB_ object - * @var object - */ - var $dbh; - - /** - * The current default fetch mode - * @var integer - * @see DB_common::$fetchmode - */ - var $fetchmode; - - /** - * The name of the class into which results should be fetched when - * DB_FETCHMODE_OBJECT is in effect - * - * @var string - * @see DB_common::$fetchmode_object_class - */ - var $fetchmode_object_class; - - /** - * The number of rows to fetch from a limit query - * @var integer - */ - var $limit_count = null; - - /** - * The row to start fetching from in limit queries - * @var integer - */ - var $limit_from = null; - - /** - * The execute parameters that created this result - * @var array - * @since Property available since Release 1.7.0 - */ - var $parameters; - - /** - * The query string that created this result - * - * Copied here incase it changes in $dbh, which is referenced - * - * @var string - * @since Property available since Release 1.7.0 - */ - var $query; - - /** - * The query result resource id created by PHP - * @var resource - */ - var $result; - - /** - * The present row being dealt with - * @var integer - */ - var $row_counter = null; - - /** - * The prepared statement resource id created by PHP in $dbh - * - * This resource is only available when the result set was created using - * a driver's native execute() method, not PEAR DB's emulated one. - * - * Copied here incase it changes in $dbh, which is referenced - * - * {@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 - * @since Property available since Release 1.7.0 - */ - var $statement; - - - // }}} - // {{{ constructor - - /** - * This constructor sets the object's properties - * - * @param object &$dbh the DB object reference - * @param resource $result the result resource id - * @param array $options an associative array with result options - * - * @return void - */ - function DB_result(&$dbh, $result, $options = array()) - { - $this->autofree = $dbh->options['autofree']; - $this->dbh = &$dbh; - $this->fetchmode = $dbh->fetchmode; - $this->fetchmode_object_class = $dbh->fetchmode_object_class; - $this->parameters = $dbh->last_parameters; - $this->query = $dbh->last_query; - $this->result = $result; - $this->statement = empty($dbh->last_stmt) ? null : $dbh->last_stmt; - foreach ($options as $key => $value) { - $this->setOption($key, $value); - } - } - - /** - * Set options for the DB_result object - * - * @param string $key the option to set - * @param mixed $value the value to set the option to - * - * @return void - */ - function setOption($key, $value = null) - { - switch ($key) { - case 'limit_from': - $this->limit_from = $value; - break; - case 'limit_count': - $this->limit_count = $value; - } - } - - // }}} - // {{{ fetchRow() - - /** - * Fetch a row of data and return it by reference into an array - * - * The type of array returned can be controlled either by setting this - * method's $fetchmode parameter or by changing the default - * fetch mode setFetchMode() before calling this method. - * - * There are two options for standardizing the information returned - * from databases, ensuring their values are consistent when changing - * DBMS's. These portability options can be turned on when creating a - * new DB object or by using setOption(). - * - * + DB_PORTABILITY_LOWERCASE - * convert names of fields to lower case - * - * + DB_PORTABILITY_RTRIM - * right trim the data - * - * @param int $fetchmode the constant indicating how to format the data - * @param int $rownum the row number to fetch (index starts at 0) - * - * @return mixed an array or object containing the row's data, - * NULL when the end of the result set is reached - * or a DB_Error object on failure. - * - * @see DB_common::setOption(), DB_common::setFetchMode() - */ - function &fetchRow($fetchmode = DB_FETCHMODE_DEFAULT, $rownum = null) - { - if ($fetchmode === DB_FETCHMODE_DEFAULT) { - $fetchmode = $this->fetchmode; - } - if ($fetchmode === DB_FETCHMODE_OBJECT) { - $fetchmode = DB_FETCHMODE_ASSOC; - $object_class = $this->fetchmode_object_class; - } - if (is_null($rownum) && $this->limit_from !== null) { - if ($this->row_counter === null) { - $this->row_counter = $this->limit_from; - // Skip rows - if ($this->dbh->features['limit'] === false) { - $i = 0; - while ($i++ < $this->limit_from) { - $this->dbh->fetchInto($this->result, $arr, $fetchmode); - } - } - } - if ($this->row_counter >= ($this->limit_from + $this->limit_count)) - { - if ($this->autofree) { - $this->free(); - } - $tmp = null; - return $tmp; - } - if ($this->dbh->features['limit'] === 'emulate') { - $rownum = $this->row_counter; - } - $this->row_counter++; - } - $res = $this->dbh->fetchInto($this->result, $arr, $fetchmode, $rownum); - if ($res === DB_OK) { - if (isset($object_class)) { - // The default mode is specified in the - // DB_common::fetchmode_object_class property - if ($object_class == 'stdClass') { - $arr = (object) $arr; - } else { - $arr = new $object_class($arr); - } - } - return $arr; - } - if ($res == null && $this->autofree) { - $this->free(); - } - return $res; - } - - // }}} - // {{{ fetchInto() - - /** - * Fetch a row of data into an array which is passed by reference - * - * The type of array returned can be controlled either by setting this - * method's $fetchmode parameter or by changing the default - * fetch mode setFetchMode() before calling this method. - * - * There are two options for standardizing the information returned - * from databases, ensuring their values are consistent when changing - * DBMS's. These portability options can be turned on when creating a - * new DB object or by using setOption(). - * - * + DB_PORTABILITY_LOWERCASE - * convert names of fields to lower case - * - * + DB_PORTABILITY_RTRIM - * right trim the data - * - * @param array &$arr the variable where the data should be placed - * @param int $fetchmode the constant indicating how to format the data - * @param int $rownum the row number to fetch (index starts at 0) - * - * @return mixed DB_OK if a row is processed, NULL when the end of the - * result set is reached or a DB_Error object on failure - * - * @see DB_common::setOption(), DB_common::setFetchMode() - */ - function fetchInto(&$arr, $fetchmode = DB_FETCHMODE_DEFAULT, $rownum = null) - { - if ($fetchmode === DB_FETCHMODE_DEFAULT) { - $fetchmode = $this->fetchmode; - } - if ($fetchmode === DB_FETCHMODE_OBJECT) { - $fetchmode = DB_FETCHMODE_ASSOC; - $object_class = $this->fetchmode_object_class; - } - if (is_null($rownum) && $this->limit_from !== null) { - if ($this->row_counter === null) { - $this->row_counter = $this->limit_from; - // Skip rows - if ($this->dbh->features['limit'] === false) { - $i = 0; - while ($i++ < $this->limit_from) { - $this->dbh->fetchInto($this->result, $arr, $fetchmode); - } - } - } - if ($this->row_counter >= ( - $this->limit_from + $this->limit_count)) - { - if ($this->autofree) { - $this->free(); - } - return null; - } - if ($this->dbh->features['limit'] === 'emulate') { - $rownum = $this->row_counter; - } - - $this->row_counter++; - } - $res = $this->dbh->fetchInto($this->result, $arr, $fetchmode, $rownum); - if ($res === DB_OK) { - if (isset($object_class)) { - // default mode specified in the - // DB_common::fetchmode_object_class property - if ($object_class == 'stdClass') { - $arr = (object) $arr; - } else { - $arr = new $object_class($arr); - } - } - return DB_OK; - } - if ($res == null && $this->autofree) { - $this->free(); - } - return $res; - } - - // }}} - // {{{ numCols() - - /** - * Get the the number of columns in a result set - * - * @return int the number of columns. A DB_Error object on failure. - */ - function numCols() - { - return $this->dbh->numCols($this->result); - } - - // }}} - // {{{ numRows() - - /** - * Get the number of rows in a result set - * - * @return int the number of rows. A DB_Error object on failure. - */ - function numRows() - { - if ($this->dbh->features['numrows'] === 'emulate' - && $this->dbh->options['portability'] & DB_PORTABILITY_NUMROWS) - { - if ($this->dbh->features['prepare']) { - $res = $this->dbh->query($this->query, $this->parameters); - } else { - $res = $this->dbh->query($this->query); - } - if (DB::isError($res)) { - return $res; - } - $i = 0; - while ($res->fetchInto($tmp, DB_FETCHMODE_ORDERED)) { - $i++; - } - $count = $i; - } else { - $count = $this->dbh->numRows($this->result); - } - - /* fbsql is checked for here because limit queries are implemented - * using a TOP() function, which results in fbsql_num_rows still - * returning the total number of rows that would have been returned, - * rather than the real number. As a result, we'll just do the limit - * calculations for fbsql in the same way as a database with emulated - * limits. Unfortunately, we can't just do this in DB_fbsql::numRows() - * because that only gets the result resource, rather than the full - * DB_Result object. */ - if (($this->dbh->features['limit'] === 'emulate' - && $this->limit_from !== null) - || $this->dbh->phptype == 'fbsql') { - $limit_count = is_null($this->limit_count) ? $count : $this->limit_count; - if ($count < $this->limit_from) { - $count = 0; - } elseif ($count < ($this->limit_from + $limit_count)) { - $count -= $this->limit_from; - } else { - $count = $limit_count; - } - } - - return $count; - } - - // }}} - // {{{ nextResult() - - /** - * Get the next result if a batch of queries was executed - * - * @return bool true if a new result is available or false if not - */ - function nextResult() - { - return $this->dbh->nextResult($this->result); - } - - // }}} - // {{{ free() - - /** - * Frees the resources allocated for this result set - * - * @return bool true on success. A DB_Error object on failure. - */ - function free() - { - $err = $this->dbh->freeResult($this->result); - if (DB::isError($err)) { - return $err; - } - $this->result = false; - $this->statement = false; - return true; - } - - // }}} - // {{{ tableInfo() - - /** - * @see DB_common::tableInfo() - * @deprecated Method deprecated some time before Release 1.2 - */ - function tableInfo($mode = null) - { - if (is_string($mode)) { - return $this->dbh->raiseError(DB_ERROR_NEED_MORE_DATA); - } - return $this->dbh->tableInfo($this, $mode); - } - - // }}} - // {{{ getQuery() - - /** - * Determine the query string that created this result - * - * @return string the query string - * - * @since Method available since Release 1.7.0 - */ - function getQuery() - { - return $this->query; - } - - // }}} - // {{{ getRowCounter() - - /** - * Tells which row number is currently being processed - * - * @return integer the current row being looked at. Starts at 1. - */ - function getRowCounter() - { - return $this->row_counter; - } - - // }}} -} - -// }}} -// {{{ class DB_row - -/** - * PEAR DB Row Object - * - * The object contains a row of data from a result set. Each column's data - * is placed in a property named for the column. - * - * @category Database - * @package DB - * @author Stig Bakken - * @copyright 1997-2007 The PHP Group - * @license http://www.php.net/license/3_0.txt PHP License 3.0 - * @version Release: 1.7.13 - * @link http://pear.php.net/package/DB - * @see DB_common::setFetchMode() - */ -class DB_row -{ - // {{{ constructor - - /** - * The constructor places a row's data into properties of this object - * - * @param array the array containing the row's data - * - * @return void - */ - function DB_row(&$arr) - { - foreach ($arr as $key => $value) { - $this->$key = &$arr[$key]; - } - } - - // }}} -} - -// }}} - -/* - * Local variables: - * tab-width: 4 - * c-basic-offset: 4 - * End: - */ - -?> -- cgit v1.2.3