| 1 | <?php |
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| 2 | |
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| 3 | /* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */ |
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| 4 | |
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| 5 | /** |
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| 6 | * The PEAR DB driver for PHP's fbsql extension |
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| 7 | * for interacting with FrontBase databases |
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| 8 | * |
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| 9 | * PHP versions 4 and 5 |
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| 10 | * |
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| 11 | * LICENSE: This source file is subject to version 3.0 of the PHP license |
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| 12 | * that is available through the world-wide-web at the following URI: |
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| 13 | * http://www.php.net/license/3_0.txt. If you did not receive a copy of |
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| 14 | * the PHP License and are unable to obtain it through the web, please |
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| 15 | * send a note to [email protected] so we can mail you a copy immediately. |
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| 16 | * |
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| 17 | * @category Database |
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| 18 | * @package DB |
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| 19 | * @author Frank M. Kromann <[email protected]> |
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| 20 | * @author Daniel Convissor <[email protected]> |
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| 21 | * @copyright 1997-2005 The PHP Group |
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| 22 | * @license http://www.php.net/license/3_0.txt PHP License 3.0 |
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| 23 | * @version CVS: $Id: fbsql.php 3 2006-08-23 03:04:20Z naka $ |
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| 24 | * @link http://pear.php.net/package/DB |
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| 25 | */ |
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| 26 | |
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| 27 | /** |
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| 28 | * Obtain the DB_common class so it can be extended from |
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| 29 | */ |
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| 30 | require_once 'DB/common.php'; |
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| 31 | |
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| 32 | /** |
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| 33 | * The methods PEAR DB uses to interact with PHP's fbsql extension |
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| 34 | * for interacting with FrontBase databases |
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| 35 | * |
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| 36 | * These methods overload the ones declared in DB_common. |
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| 37 | * |
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| 38 | * @category Database |
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| 39 | * @package DB |
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| 40 | * @author Frank M. Kromann <[email protected]> |
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| 41 | * @author Daniel Convissor <[email protected]> |
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| 42 | * @copyright 1997-2005 The PHP Group |
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| 43 | * @license http://www.php.net/license/3_0.txt PHP License 3.0 |
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| 44 | * @version Release: @package_version@ |
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| 45 | * @link http://pear.php.net/package/DB |
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| 46 | * @since Class functional since Release 1.7.0 |
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| 47 | */ |
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| 48 | class DB_fbsql extends DB_common |
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| 49 | { |
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| 50 | // {{{ properties |
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| 51 | |
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| 52 | /** |
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| 53 | * The DB driver type (mysql, oci8, odbc, etc.) |
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| 54 | * @var string |
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| 55 | */ |
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| 56 | var $phptype = 'fbsql'; |
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| 57 | |
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| 58 | /** |
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| 59 | * The database syntax variant to be used (db2, access, etc.), if any |
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| 60 | * @var string |
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| 61 | */ |
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| 62 | var $dbsyntax = 'fbsql'; |
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| 63 | |
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| 64 | /** |
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| 65 | * The capabilities of this DB implementation |
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| 66 | * |
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| 67 | * The 'new_link' element contains the PHP version that first provided |
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| 68 | * new_link support for this DBMS. Contains false if it's unsupported. |
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| 69 | * |
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| 70 | * Meaning of the 'limit' element: |
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| 71 | * + 'emulate' = emulate with fetch row by number |
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| 72 | * + 'alter' = alter the query |
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| 73 | * + false = skip rows |
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| 74 | * |
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| 75 | * @var array |
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| 76 | */ |
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| 77 | var $features = array( |
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| 78 | 'limit' => 'alter', |
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| 79 | 'new_link' => false, |
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| 80 | 'numrows' => true, |
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| 81 | 'pconnect' => true, |
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| 82 | 'prepare' => false, |
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| 83 | 'ssl' => false, |
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| 84 | 'transactions' => true, |
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| 85 | ); |
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| 86 | |
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| 87 | /** |
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| 88 | * A mapping of native error codes to DB error codes |
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| 89 | * @var array |
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| 90 | */ |
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| 91 | var $errorcode_map = array( |
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| 92 | 22 => DB_ERROR_SYNTAX, |
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| 93 | 85 => DB_ERROR_ALREADY_EXISTS, |
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| 94 | 108 => DB_ERROR_SYNTAX, |
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| 95 | 116 => DB_ERROR_NOSUCHTABLE, |
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| 96 | 124 => DB_ERROR_VALUE_COUNT_ON_ROW, |
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| 97 | 215 => DB_ERROR_NOSUCHFIELD, |
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| 98 | 217 => DB_ERROR_INVALID_NUMBER, |
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| 99 | 226 => DB_ERROR_NOSUCHFIELD, |
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| 100 | 231 => DB_ERROR_INVALID, |
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| 101 | 239 => DB_ERROR_TRUNCATED, |
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| 102 | 251 => DB_ERROR_SYNTAX, |
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| 103 | 266 => DB_ERROR_NOT_FOUND, |
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| 104 | 357 => DB_ERROR_CONSTRAINT_NOT_NULL, |
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| 105 | 358 => DB_ERROR_CONSTRAINT, |
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| 106 | 360 => DB_ERROR_CONSTRAINT, |
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| 107 | 361 => DB_ERROR_CONSTRAINT, |
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| 108 | ); |
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| 109 | |
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| 110 | /** |
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| 111 | * The raw database connection created by PHP |
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| 112 | * @var resource |
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| 113 | */ |
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| 114 | var $connection; |
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| 115 | |
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| 116 | /** |
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| 117 | * The DSN information for connecting to a database |
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| 118 | * @var array |
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| 119 | */ |
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| 120 | var $dsn = array(); |
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| 121 | |
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| 122 | |
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| 123 | // }}} |
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| 124 | // {{{ constructor |
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| 125 | |
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| 126 | /** |
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| 127 | * This constructor calls <kbd>$this->DB_common()</kbd> |
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| 128 | * |
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| 129 | * @return void |
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| 130 | */ |
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| 131 | function DB_fbsql() |
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| 132 | { |
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| 133 | $this->DB_common(); |
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| 134 | } |
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| 135 | |
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| 136 | // }}} |
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| 137 | // {{{ connect() |
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| 138 | |
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| 139 | /** |
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| 140 | * Connect to the database server, log in and open the database |
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| 141 | * |
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| 142 | * Don't call this method directly. Use DB::connect() instead. |
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| 143 | * |
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| 144 | * @param array $dsn the data source name |
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| 145 | * @param bool $persistent should the connection be persistent? |
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| 146 | * |
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| 147 | * @return int DB_OK on success. A DB_Error object on failure. |
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| 148 | */ |
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| 149 | function connect($dsn, $persistent = false) |
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| 150 | { |
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| 151 | if (!PEAR::loadExtension('fbsql')) { |
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| 152 | return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND); |
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| 153 | } |
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| 154 | |
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| 155 | $this->dsn = $dsn; |
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| 156 | if ($dsn['dbsyntax']) { |
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| 157 | $this->dbsyntax = $dsn['dbsyntax']; |
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| 158 | } |
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| 159 | |
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| 160 | $params = array( |
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| 161 | $dsn['hostspec'] ? $dsn['hostspec'] : 'localhost', |
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| 162 | $dsn['username'] ? $dsn['username'] : null, |
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| 163 | $dsn['password'] ? $dsn['password'] : null, |
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| 164 | ); |
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| 165 | |
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| 166 | $connect_function = $persistent ? 'fbsql_pconnect' : 'fbsql_connect'; |
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| 167 | |
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| 168 | $ini = ini_get('track_errors'); |
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| 169 | $php_errormsg = ''; |
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| 170 | if ($ini) { |
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| 171 | $this->connection = @call_user_func_array($connect_function, |
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| 172 | $params); |
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| 173 | } else { |
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| 174 | ini_set('track_errors', 1); |
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| 175 | $this->connection = @call_user_func_array($connect_function, |
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| 176 | $params); |
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| 177 | ini_set('track_errors', $ini); |
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| 178 | } |
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| 179 | |
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| 180 | if (!$this->connection) { |
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| 181 | return $this->raiseError(DB_ERROR_CONNECT_FAILED, |
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| 182 | null, null, null, |
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| 183 | $php_errormsg); |
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| 184 | } |
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| 185 | |
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| 186 | if ($dsn['database']) { |
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| 187 | if (!@fbsql_select_db($dsn['database'], $this->connection)) { |
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| 188 | return $this->fbsqlRaiseError(); |
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| 189 | } |
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| 190 | } |
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| 191 | |
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| 192 | return DB_OK; |
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| 193 | } |
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| 194 | |
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| 195 | // }}} |
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| 196 | // {{{ disconnect() |
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| 197 | |
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| 198 | /** |
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| 199 | * Disconnects from the database server |
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| 200 | * |
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| 201 | * @return bool TRUE on success, FALSE on failure |
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| 202 | */ |
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| 203 | function disconnect() |
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| 204 | { |
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| 205 | $ret = @fbsql_close($this->connection); |
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| 206 | $this->connection = null; |
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| 207 | return $ret; |
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| 208 | } |
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| 209 | |
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| 210 | // }}} |
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| 211 | // {{{ simpleQuery() |
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| 212 | |
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| 213 | /** |
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| 214 | * Sends a query to the database server |
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| 215 | * |
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| 216 | * @param string the SQL query string |
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| 217 | * |
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| 218 | * @return mixed + a PHP result resrouce for successful SELECT queries |
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| 219 | * + the DB_OK constant for other successful queries |
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| 220 | * + a DB_Error object on failure |
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| 221 | */ |
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| 222 | function simpleQuery($query) |
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| 223 | { |
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| 224 | $this->last_query = $query; |
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| 225 | $query = $this->modifyQuery($query); |
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| 226 | $result = @fbsql_query("$query;", $this->connection); |
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| 227 | if (!$result) { |
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| 228 | return $this->fbsqlRaiseError(); |
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| 229 | } |
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| 230 | // Determine which queries that should return data, and which |
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| 231 | // should return an error code only. |
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| 232 | if (DB::isManip($query)) { |
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| 233 | return DB_OK; |
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| 234 | } |
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| 235 | return $result; |
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| 236 | } |
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| 237 | |
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| 238 | // }}} |
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| 239 | // {{{ nextResult() |
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| 240 | |
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| 241 | /** |
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| 242 | * Move the internal fbsql result pointer to the next available result |
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| 243 | * |
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| 244 | * @param a valid fbsql result resource |
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| 245 | * |
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| 246 | * @access public |
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| 247 | * |
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| 248 | * @return true if a result is available otherwise return false |
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| 249 | */ |
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| 250 | function nextResult($result) |
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| 251 | { |
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| 252 | return @fbsql_next_result($result); |
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| 253 | } |
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| 254 | |
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| 255 | // }}} |
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| 256 | // {{{ fetchInto() |
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| 257 | |
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| 258 | /** |
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| 259 | * Places a row from the result set into the given array |
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| 260 | * |
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| 261 | * Formating of the array and the data therein are configurable. |
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| 262 | * See DB_result::fetchInto() for more information. |
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| 263 | * |
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| 264 | * This method is not meant to be called directly. Use |
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| 265 | * DB_result::fetchInto() instead. It can't be declared "protected" |
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| 266 | * because DB_result is a separate object. |
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| 267 | * |
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| 268 | * @param resource $result the query result resource |
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| 269 | * @param array $arr the referenced array to put the data in |
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| 270 | * @param int $fetchmode how the resulting array should be indexed |
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| 271 | * @param int $rownum the row number to fetch (0 = first row) |
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| 272 | * |
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| 273 | * @return mixed DB_OK on success, NULL when the end of a result set is |
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| 274 | * reached or on failure |
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| 275 | * |
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| 276 | * @see DB_result::fetchInto() |
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| 277 | */ |
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| 278 | function fetchInto($result, &$arr, $fetchmode, $rownum = null) |
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| 279 | { |
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| 280 | if ($rownum !== null) { |
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| 281 | if (!@fbsql_data_seek($result, $rownum)) { |
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| 282 | return null; |
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| 283 | } |
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| 284 | } |
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| 285 | if ($fetchmode & DB_FETCHMODE_ASSOC) { |
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| 286 | $arr = @fbsql_fetch_array($result, FBSQL_ASSOC); |
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| 287 | if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) { |
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| 288 | $arr = array_change_key_case($arr, CASE_LOWER); |
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| 289 | } |
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| 290 | } else { |
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| 291 | $arr = @fbsql_fetch_row($result); |
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| 292 | } |
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| 293 | if (!$arr) { |
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| 294 | return null; |
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| 295 | } |
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| 296 | if ($this->options['portability'] & DB_PORTABILITY_RTRIM) { |
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| 297 | $this->_rtrimArrayValues($arr); |
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| 298 | } |
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| 299 | if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) { |
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| 300 | $this->_convertNullArrayValuesToEmpty($arr); |
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| 301 | } |
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| 302 | return DB_OK; |
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| 303 | } |
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| 304 | |
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| 305 | // }}} |
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| 306 | // {{{ freeResult() |
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| 307 | |
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| 308 | /** |
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| 309 | * Deletes the result set and frees the memory occupied by the result set |
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| 310 | * |
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| 311 | * This method is not meant to be called directly. Use |
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| 312 | * DB_result::free() instead. It can't be declared "protected" |
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| 313 | * because DB_result is a separate object. |
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| 314 | * |
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| 315 | * @param resource $result PHP's query result resource |
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| 316 | * |
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| 317 | * @return bool TRUE on success, FALSE if $result is invalid |
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| 318 | * |
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| 319 | * @see DB_result::free() |
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| 320 | */ |
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| 321 | function freeResult($result) |
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| 322 | { |
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| 323 | return @fbsql_free_result($result); |
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| 324 | } |
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| 325 | |
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| 326 | // }}} |
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| 327 | // {{{ autoCommit() |
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| 328 | |
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| 329 | /** |
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| 330 | * Enables or disables automatic commits |
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| 331 | * |
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| 332 | * @param bool $onoff true turns it on, false turns it off |
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| 333 | * |
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| 334 | * @return int DB_OK on success. A DB_Error object if the driver |
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| 335 | * doesn't support auto-committing transactions. |
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| 336 | */ |
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| 337 | function autoCommit($onoff=false) |
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| 338 | { |
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| 339 | if ($onoff) { |
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| 340 | $this->query("SET COMMIT TRUE"); |
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| 341 | } else { |
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| 342 | $this->query("SET COMMIT FALSE"); |
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| 343 | } |
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| 344 | } |
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| 345 | |
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| 346 | // }}} |
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| 347 | // {{{ commit() |
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| 348 | |
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| 349 | /** |
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| 350 | * Commits the current transaction |
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| 351 | * |
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| 352 | * @return int DB_OK on success. A DB_Error object on failure. |
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| 353 | */ |
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| 354 | function commit() |
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| 355 | { |
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| 356 | @fbsql_commit(); |
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| 357 | } |
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| 358 | |
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| 359 | // }}} |
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| 360 | // {{{ rollback() |
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| 361 | |
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| 362 | /** |
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| 363 | * Reverts the current transaction |
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| 364 | * |
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| 365 | * @return int DB_OK on success. A DB_Error object on failure. |
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| 366 | */ |
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| 367 | function rollback() |
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| 368 | { |
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| 369 | @fbsql_rollback(); |
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| 370 | } |
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| 371 | |
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| 372 | // }}} |
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| 373 | // {{{ numCols() |
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| 374 | |
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| 375 | /** |
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| 376 | * Gets the number of columns in a result set |
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| 377 | * |
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| 378 | * This method is not meant to be called directly. Use |
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| 379 | * DB_result::numCols() instead. It can't be declared "protected" |
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| 380 | * because DB_result is a separate object. |
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| 381 | * |
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| 382 | * @param resource $result PHP's query result resource |
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| 383 | * |
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| 384 | * @return int the number of columns. A DB_Error object on failure. |
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| 385 | * |
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| 386 | * @see DB_result::numCols() |
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| 387 | */ |
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| 388 | function numCols($result) |
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| 389 | { |
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| 390 | $cols = @fbsql_num_fields($result); |
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| 391 | if (!$cols) { |
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| 392 | return $this->fbsqlRaiseError(); |
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| 393 | } |
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| 394 | return $cols; |
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| 395 | } |
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| 396 | |
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| 397 | // }}} |
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| 398 | // {{{ numRows() |
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| 399 | |
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| 400 | /** |
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| 401 | * Gets the number of rows in a result set |
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| 402 | * |
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| 403 | * This method is not meant to be called directly. Use |
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| 404 | * DB_result::numRows() instead. It can't be declared "protected" |
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| 405 | * because DB_result is a separate object. |
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| 406 | * |
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| 407 | * @param resource $result PHP's query result resource |
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| 408 | * |
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| 409 | * @return int the number of rows. A DB_Error object on failure. |
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| 410 | * |
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| 411 | * @see DB_result::numRows() |
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| 412 | */ |
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| 413 | function numRows($result) |
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| 414 | { |
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| 415 | $rows = @fbsql_num_rows($result); |
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| 416 | if ($rows === null) { |
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| 417 | return $this->fbsqlRaiseError(); |
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| 418 | } |
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| 419 | return $rows; |
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| 420 | } |
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| 421 | |
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| 422 | // }}} |
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| 423 | // {{{ affectedRows() |
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| 424 | |
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| 425 | /** |
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| 426 | * Determines the number of rows affected by a data maniuplation query |
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| 427 | * |
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| 428 | * 0 is returned for queries that don't manipulate data. |
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| 429 | * |
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| 430 | * @return int the number of rows. A DB_Error object on failure. |
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| 431 | */ |
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| 432 | function affectedRows() |
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| 433 | { |
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| 434 | if (DB::isManip($this->last_query)) { |
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| 435 | $result = @fbsql_affected_rows($this->connection); |
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| 436 | } else { |
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| 437 | $result = 0; |
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| 438 | } |
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| 439 | return $result; |
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| 440 | } |
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| 441 | |
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| 442 | // }}} |
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| 443 | // {{{ nextId() |
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| 444 | |
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| 445 | /** |
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| 446 | * Returns the next free id in a sequence |
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| 447 | * |
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| 448 | * @param string $seq_name name of the sequence |
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| 449 | * @param boolean $ondemand when true, the seqence is automatically |
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| 450 | * created if it does not exist |
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| 451 | * |
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| 452 | * @return int the next id number in the sequence. |
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| 453 | * A DB_Error object on failure. |
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| 454 | * |
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| 455 | * @see DB_common::nextID(), DB_common::getSequenceName(), |
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| 456 | * DB_fbsql::createSequence(), DB_fbsql::dropSequence() |
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| 457 | */ |
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| 458 | function nextId($seq_name, $ondemand = true) |
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| 459 | { |
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| 460 | $seqname = $this->getSequenceName($seq_name); |
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| 461 | do { |
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| 462 | $repeat = 0; |
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| 463 | $this->pushErrorHandling(PEAR_ERROR_RETURN); |
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| 464 | $result = $this->query('SELECT UNIQUE FROM ' . $seqname); |
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| 465 | $this->popErrorHandling(); |
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| 466 | if ($ondemand && DB::isError($result) && |
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| 467 | $result->getCode() == DB_ERROR_NOSUCHTABLE) { |
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| 468 | $repeat = 1; |
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| 469 | $result = $this->createSequence($seq_name); |
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| 470 | if (DB::isError($result)) { |
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| 471 | return $result; |
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| 472 | } |
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| 473 | } else { |
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| 474 | $repeat = 0; |
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| 475 | } |
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| 476 | } while ($repeat); |
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| 477 | if (DB::isError($result)) { |
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| 478 | return $this->fbsqlRaiseError(); |
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| 479 | } |
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| 480 | $result->fetchInto($tmp, DB_FETCHMODE_ORDERED); |
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| 481 | return $tmp[0]; |
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| 482 | } |
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| 483 | |
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| 484 | /** |
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| 485 | * Creates a new sequence |
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| 486 | * |
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| 487 | * @param string $seq_name name of the new sequence |
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| 488 | * |
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| 489 | * @return int DB_OK on success. A DB_Error object on failure. |
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| 490 | * |
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| 491 | * @see DB_common::createSequence(), DB_common::getSequenceName(), |
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| 492 | * DB_fbsql::nextID(), DB_fbsql::dropSequence() |
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| 493 | */ |
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| 494 | function createSequence($seq_name) |
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| 495 | { |
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| 496 | $seqname = $this->getSequenceName($seq_name); |
|---|
| 497 | $res = $this->query('CREATE TABLE ' . $seqname |
|---|
| 498 | . ' (id INTEGER NOT NULL,' |
|---|
| 499 | . ' PRIMARY KEY(id))'); |
|---|
| 500 | if ($res) { |
|---|
| 501 | $res = $this->query('SET UNIQUE = 0 FOR ' . $seqname); |
|---|
| 502 | } |
|---|
| 503 | return $res; |
|---|
| 504 | } |
|---|
| 505 | |
|---|
| 506 | // }}} |
|---|
| 507 | // {{{ dropSequence() |
|---|
| 508 | |
|---|
| 509 | /** |
|---|
| 510 | * Deletes a sequence |
|---|
| 511 | * |
|---|
| 512 | * @param string $seq_name name of the sequence to be deleted |
|---|
| 513 | * |
|---|
| 514 | * @return int DB_OK on success. A DB_Error object on failure. |
|---|
| 515 | * |
|---|
| 516 | * @see DB_common::dropSequence(), DB_common::getSequenceName(), |
|---|
| 517 | * DB_fbsql::nextID(), DB_fbsql::createSequence() |
|---|
| 518 | */ |
|---|
| 519 | function dropSequence($seq_name) |
|---|
| 520 | { |
|---|
| 521 | return $this->query('DROP TABLE ' . $this->getSequenceName($seq_name) |
|---|
| 522 | . ' RESTRICT'); |
|---|
| 523 | } |
|---|
| 524 | |
|---|
| 525 | // }}} |
|---|
| 526 | // {{{ modifyLimitQuery() |
|---|
| 527 | |
|---|
| 528 | /** |
|---|
| 529 | * Adds LIMIT clauses to a query string according to current DBMS standards |
|---|
| 530 | * |
|---|
| 531 | * @param string $query the query to modify |
|---|
| 532 | * @param int $from the row to start to fetching (0 = the first row) |
|---|
| 533 | * @param int $count the numbers of rows to fetch |
|---|
| 534 | * @param mixed $params array, string or numeric data to be used in |
|---|
| 535 | * execution of the statement. Quantity of items |
|---|
| 536 | * passed must match quantity of placeholders in |
|---|
| 537 | * query: meaning 1 placeholder for non-array |
|---|
| 538 | * parameters or 1 placeholder per array element. |
|---|
| 539 | * |
|---|
| 540 | * @return string the query string with LIMIT clauses added |
|---|
| 541 | * |
|---|
| 542 | * @access protected |
|---|
| 543 | */ |
|---|
| 544 | function modifyLimitQuery($query, $from, $count, $params = array()) |
|---|
| 545 | { |
|---|
| 546 | if (DB::isManip($query)) { |
|---|
| 547 | return preg_replace('/^([\s(])*SELECT/i', |
|---|
| 548 | "\\1SELECT TOP($count)", $query); |
|---|
| 549 | } else { |
|---|
| 550 | return preg_replace('/([\s(])*SELECT/i', |
|---|
| 551 | "\\1SELECT TOP($from, $count)", $query); |
|---|
| 552 | } |
|---|
| 553 | } |
|---|
| 554 | |
|---|
| 555 | // }}} |
|---|
| 556 | // {{{ quoteSmart() |
|---|
| 557 | |
|---|
| 558 | /** |
|---|
| 559 | * Formats input so it can be safely used in a query |
|---|
| 560 | * |
|---|
| 561 | * @param mixed $in the data to be formatted |
|---|
| 562 | * |
|---|
| 563 | * @return mixed the formatted data. The format depends on the input's |
|---|
| 564 | * PHP type: |
|---|
| 565 | * + null = the string <samp>NULL</samp> |
|---|
| 566 | * + boolean = string <samp>TRUE</samp> or <samp>FALSE</samp> |
|---|
| 567 | * + integer or double = the unquoted number |
|---|
| 568 | * + other (including strings and numeric strings) = |
|---|
| 569 | * the data escaped according to FrontBase's settings |
|---|
| 570 | * then encapsulated between single quotes |
|---|
| 571 | * |
|---|
| 572 | * @see DB_common::quoteSmart() |
|---|
| 573 | * @since Method available since Release 1.6.0 |
|---|
| 574 | */ |
|---|
| 575 | function quoteSmart($in) |
|---|
| 576 | { |
|---|
| 577 | if (is_int($in) || is_double($in)) { |
|---|
| 578 | return $in; |
|---|
| 579 | } elseif (is_bool($in)) { |
|---|
| 580 | return $in ? 'TRUE' : 'FALSE'; |
|---|
| 581 | } elseif (is_null($in)) { |
|---|
| 582 | return 'NULL'; |
|---|
| 583 | } else { |
|---|
| 584 | return "'" . $this->escapeSimple($in) . "'"; |
|---|
| 585 | } |
|---|
| 586 | } |
|---|
| 587 | |
|---|
| 588 | // }}} |
|---|
| 589 | // {{{ fbsqlRaiseError() |
|---|
| 590 | |
|---|
| 591 | /** |
|---|
| 592 | * Produces a DB_Error object regarding the current problem |
|---|
| 593 | * |
|---|
| 594 | * @param int $errno if the error is being manually raised pass a |
|---|
| 595 | * DB_ERROR* constant here. If this isn't passed |
|---|
| 596 | * the error information gathered from the DBMS. |
|---|
| 597 | * |
|---|
| 598 | * @return object the DB_Error object |
|---|
| 599 | * |
|---|
| 600 | * @see DB_common::raiseError(), |
|---|
| 601 | * DB_fbsql::errorNative(), DB_common::errorCode() |
|---|
| 602 | */ |
|---|
| 603 | function fbsqlRaiseError($errno = null) |
|---|
| 604 | { |
|---|
| 605 | if ($errno === null) { |
|---|
| 606 | $errno = $this->errorCode(fbsql_errno($this->connection)); |
|---|
| 607 | } |
|---|
| 608 | return $this->raiseError($errno, null, null, null, |
|---|
| 609 | @fbsql_error($this->connection)); |
|---|
| 610 | } |
|---|
| 611 | |
|---|
| 612 | // }}} |
|---|
| 613 | // {{{ errorNative() |
|---|
| 614 | |
|---|
| 615 | /** |
|---|
| 616 | * Gets the DBMS' native error code produced by the last query |
|---|
| 617 | * |
|---|
| 618 | * @return int the DBMS' error code |
|---|
| 619 | */ |
|---|
| 620 | function errorNative() |
|---|
| 621 | { |
|---|
| 622 | return @fbsql_errno($this->connection); |
|---|
| 623 | } |
|---|
| 624 | |
|---|
| 625 | // }}} |
|---|
| 626 | // {{{ tableInfo() |
|---|
| 627 | |
|---|
| 628 | /** |
|---|
| 629 | * Returns information about a table or a result set |
|---|
| 630 | * |
|---|
| 631 | * @param object|string $result DB_result object from a query or a |
|---|
| 632 | * string containing the name of a table. |
|---|
| 633 | * While this also accepts a query result |
|---|
| 634 | * resource identifier, this behavior is |
|---|
| 635 | * deprecated. |
|---|
| 636 | * @param int $mode a valid tableInfo mode |
|---|
| 637 | * |
|---|
| 638 | * @return array an associative array with the information requested. |
|---|
| 639 | * A DB_Error object on failure. |
|---|
| 640 | * |
|---|
| 641 | * @see DB_common::tableInfo() |
|---|
| 642 | */ |
|---|
| 643 | function tableInfo($result, $mode = null) |
|---|
| 644 | { |
|---|
| 645 | if (is_string($result)) { |
|---|
| 646 | /* |
|---|
| 647 | * Probably received a table name. |
|---|
| 648 | * Create a result resource identifier. |
|---|
| 649 | */ |
|---|
| 650 | $id = @fbsql_list_fields($this->dsn['database'], |
|---|
| 651 | $result, $this->connection); |
|---|
| 652 | $got_string = true; |
|---|
| 653 | } elseif (isset($result->result)) { |
|---|
| 654 | /* |
|---|
| 655 | * Probably received a result object. |
|---|
| 656 | * Extract the result resource identifier. |
|---|
| 657 | */ |
|---|
| 658 | $id = $result->result; |
|---|
| 659 | $got_string = false; |
|---|
| 660 | } else { |
|---|
| 661 | /* |
|---|
| 662 | * Probably received a result resource identifier. |
|---|
| 663 | * Copy it. |
|---|
| 664 | * Deprecated. Here for compatibility only. |
|---|
| 665 | */ |
|---|
| 666 | $id = $result; |
|---|
| 667 | $got_string = false; |
|---|
| 668 | } |
|---|
| 669 | |
|---|
| 670 | if (!is_resource($id)) { |
|---|
| 671 | return $this->fbsqlRaiseError(DB_ERROR_NEED_MORE_DATA); |
|---|
| 672 | } |
|---|
| 673 | |
|---|
| 674 | if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) { |
|---|
| 675 | $case_func = 'strtolower'; |
|---|
| 676 | } else { |
|---|
| 677 | $case_func = 'strval'; |
|---|
| 678 | } |
|---|
| 679 | |
|---|
| 680 | $count = @fbsql_num_fields($id); |
|---|
| 681 | $res = array(); |
|---|
| 682 | |
|---|
| 683 | if ($mode) { |
|---|
| 684 | $res['num_fields'] = $count; |
|---|
| 685 | } |
|---|
| 686 | |
|---|
| 687 | for ($i = 0; $i < $count; $i++) { |
|---|
| 688 | $res[$i] = array( |
|---|
| 689 | 'table' => $case_func(@fbsql_field_table($id, $i)), |
|---|
| 690 | 'name' => $case_func(@fbsql_field_name($id, $i)), |
|---|
| 691 | 'type' => @fbsql_field_type($id, $i), |
|---|
| 692 | 'len' => @fbsql_field_len($id, $i), |
|---|
| 693 | 'flags' => @fbsql_field_flags($id, $i), |
|---|
| 694 | ); |
|---|
| 695 | if ($mode & DB_TABLEINFO_ORDER) { |
|---|
| 696 | $res['order'][$res[$i]['name']] = $i; |
|---|
| 697 | } |
|---|
| 698 | if ($mode & DB_TABLEINFO_ORDERTABLE) { |
|---|
| 699 | $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i; |
|---|
| 700 | } |
|---|
| 701 | } |
|---|
| 702 | |
|---|
| 703 | // free the result only if we were called on a table |
|---|
| 704 | if ($got_string) { |
|---|
| 705 | @fbsql_free_result($id); |
|---|
| 706 | } |
|---|
| 707 | return $res; |
|---|
| 708 | } |
|---|
| 709 | |
|---|
| 710 | // }}} |
|---|
| 711 | // {{{ getSpecialQuery() |
|---|
| 712 | |
|---|
| 713 | /** |
|---|
| 714 | * Obtains the query string needed for listing a given type of objects |
|---|
| 715 | * |
|---|
| 716 | * @param string $type the kind of objects you want to retrieve |
|---|
| 717 | * |
|---|
| 718 | * @return string the SQL query string or null if the driver doesn't |
|---|
| 719 | * support the object type requested |
|---|
| 720 | * |
|---|
| 721 | * @access protected |
|---|
| 722 | * @see DB_common::getListOf() |
|---|
| 723 | */ |
|---|
| 724 | function getSpecialQuery($type) |
|---|
| 725 | { |
|---|
| 726 | switch ($type) { |
|---|
| 727 | case 'tables': |
|---|
| 728 | return 'SELECT "table_name" FROM information_schema.tables' |
|---|
| 729 | . ' t0, information_schema.schemata t1' |
|---|
| 730 | . ' WHERE t0.schema_pk=t1.schema_pk AND' |
|---|
| 731 | . ' "table_type" = \'BASE TABLE\'' |
|---|
| 732 | . ' AND "schema_name" = current_schema'; |
|---|
| 733 | case 'views': |
|---|
| 734 | return 'SELECT "table_name" FROM information_schema.tables' |
|---|
| 735 | . ' t0, information_schema.schemata t1' |
|---|
| 736 | . ' WHERE t0.schema_pk=t1.schema_pk AND' |
|---|
| 737 | . ' "table_type" = \'VIEW\'' |
|---|
| 738 | . ' AND "schema_name" = current_schema'; |
|---|
| 739 | case 'users': |
|---|
| 740 | return 'SELECT "user_name" from information_schema.users'; |
|---|
| 741 | case 'functions': |
|---|
| 742 | return 'SELECT "routine_name" FROM' |
|---|
| 743 | . ' information_schema.psm_routines' |
|---|
| 744 | . ' t0, information_schema.schemata t1' |
|---|
| 745 | . ' WHERE t0.schema_pk=t1.schema_pk' |
|---|
| 746 | . ' AND "routine_kind"=\'FUNCTION\'' |
|---|
| 747 | . ' AND "schema_name" = current_schema'; |
|---|
| 748 | case 'procedures': |
|---|
| 749 | return 'SELECT "routine_name" FROM' |
|---|
| 750 | . ' information_schema.psm_routines' |
|---|
| 751 | . ' t0, information_schema.schemata t1' |
|---|
| 752 | . ' WHERE t0.schema_pk=t1.schema_pk' |
|---|
| 753 | . ' AND "routine_kind"=\'PROCEDURE\'' |
|---|
| 754 | . ' AND "schema_name" = current_schema'; |
|---|
| 755 | default: |
|---|
| 756 | return null; |
|---|
| 757 | } |
|---|
| 758 | } |
|---|
| 759 | |
|---|
| 760 | // }}} |
|---|
| 761 | } |
|---|
| 762 | |
|---|
| 763 | /* |
|---|
| 764 | * Local variables: |
|---|
| 765 | * tab-width: 4 |
|---|
| 766 | * c-basic-offset: 4 |
|---|
| 767 | * End: |
|---|
| 768 | */ |
|---|
| 769 | |
|---|
| 770 | ?> |
|---|