Documentation TYPO3 par Ameos

database_interface.lib.php

00001 <?php
00002 /* $Id: database_interface.lib.php,v 2.20 2005/08/23 11:56:52 nijel Exp $ */
00003 // vim: expandtab sw=4 ts=4 sts=4:
00004 
00008 // PMA_DBI_try_query()
00009 define('PMA_DBI_QUERY_STORE',       1);  // Force STORE_RESULT method, ignored by classic MySQL.
00010 define('PMA_DBI_QUERY_UNBUFFERED',  2);  // Do not read whole query
00011 // PMA_DBI_get_variable()
00012 define('PMA_DBI_GETVAR_SESSION', 1);
00013 define('PMA_DBI_GETVAR_GLOBAL', 2);
00014 
00018 require_once('./libraries/dbi/' . $cfg['Server']['extension'] . '.dbi.lib.php');
00019 
00023 function PMA_DBI_query($query, $link = NULL, $options = 0) {
00024     $res = PMA_DBI_try_query($query, $link, $options)
00025         or PMA_mysqlDie(PMA_DBI_getError($link), $query);
00026     return $res;
00027 }
00028 
00029 function PMA_DBI_get_dblist($link = NULL) {
00030     if (empty($link)) {
00031         if (isset($GLOBALS['userlink'])) {
00032             $link = $GLOBALS['userlink'];
00033         } else {
00034             return FALSE;
00035         }
00036     }
00037     $res = PMA_DBI_try_query('SHOW DATABASES;', $link);
00038     $dbs_array = array();
00039     while ($row = PMA_DBI_fetch_row($res)) {
00040 
00041        // Before MySQL 4.0.2, SHOW DATABASES could send the
00042        // whole list, so check if we really have access:
00043        //if (PMA_MYSQL_CLIENT_API < 40002) {
00044        // Better check the server version, in case the client API
00045        // is more recent than the server version
00046 
00047        if (PMA_MYSQL_INT_VERSION < 40002) {
00048            $dblink = @PMA_DBI_select_db($row[0], $link);
00049            if (!$dblink) {
00050                continue;
00051            }
00052        }
00053        $dbs_array[] = $row[0];
00054     }
00055     PMA_DBI_free_result($res);
00056     unset($res);
00057 
00058     return $dbs_array;
00059 }
00060 
00061 function PMA_DBI_get_tables($database, $link = NULL) {
00062     $result       = PMA_DBI_query('SHOW TABLES FROM ' . PMA_backquote($database) . ';', NULL, PMA_DBI_QUERY_STORE);
00063     $tables       = array();
00064     while (list($current) = PMA_DBI_fetch_row($result)) {
00065         $tables[] = $current;
00066     }
00067     PMA_DBI_free_result($result);
00068 
00069     return $tables;
00070 }
00071 
00072 function PMA_DBI_get_tables_full($database, $link = NULL) {
00073     $result = PMA_DBI_query('SHOW TABLE STATUS FROM ' . PMA_backquote($database) . ';', NULL, PMA_DBI_QUERY_STORE);
00074     $tables = array();
00075     while ($row = PMA_DBI_fetch_assoc($result)) {
00076         $tables[$row['Name']] = $row;
00077     }
00078     PMA_DBI_free_result($result);
00079     return $tables;
00080 }
00081 
00082 function PMA_DBI_get_fields($database, $table, $link = NULL) {
00083     if (empty($link)) {
00084         if (isset($GLOBALS['userlink'])) {
00085             $link = $GLOBALS['userlink'];
00086         } else {
00087             return FALSE;
00088         }
00089     }
00090     // here we use a try_query because when coming from 
00091     // tbl_create + tbl_properties.inc.php, the table does not exist
00092     $result = PMA_DBI_try_query('SHOW FULL FIELDS FROM ' . PMA_backquote($database) . '.' . PMA_backquote($table), $link);
00093 
00094     if (!$result) {
00095         return FALSE;
00096     }
00097 
00098     $fields = array();
00099     while ($row = PMA_DBI_fetch_assoc($result)) {
00100         $fields[] = $row;
00101     }
00102 
00103     return $fields;
00104 }
00105 
00106 function PMA_DBI_get_variable($var, $type = PMA_DBI_GETVAR_SESSION, $link = NULL) {
00107     if ($link === NULL) {
00108         if (isset($GLOBALS['userlink'])) {
00109             $link = $GLOBALS['userlink'];
00110         } else {
00111             return FALSE;
00112         }
00113     }
00114     if (PMA_MYSQL_INT_VERSION < 40002) {
00115         $type = 0;
00116     }
00117     switch ($type) {
00118         case PMA_DBI_GETVAR_SESSION:
00119             $modifier = ' SESSION';
00120             break;
00121         case PMA_DBI_GETVAR_GLOBAL:
00122             $modifier = ' GLOBAL';
00123             break;
00124         default:
00125             $modifier = '';
00126     }
00127     $res = PMA_DBI_query('SHOW' . $modifier . ' VARIABLES LIKE \'' . $var . '\';', $link);
00128     $row = PMA_DBI_fetch_row($res);
00129     PMA_DBI_free_result($res);
00130     if (empty($row)) {
00131         return FALSE;
00132     } else {
00133         return $row[0] == $var ? $row[1] : FALSE;
00134     }
00135 }
00136 
00137 function PMA_DBI_postConnect($link, $is_controluser = FALSE) {
00138     global $collation_connection, $charset_connection;
00139     if (!defined('PMA_MYSQL_INT_VERSION')) {
00140         $result = PMA_DBI_query('SELECT VERSION() AS version', $link, PMA_DBI_QUERY_STORE);
00141         if ($result != FALSE && @PMA_DBI_num_rows($result) > 0) {
00142             $row   = PMA_DBI_fetch_row($result);
00143             $match = explode('.', $row[0]);
00144             PMA_DBI_free_result($result);
00145         }
00146         if (!isset($row)) {
00147             define('PMA_MYSQL_INT_VERSION', 32332);
00148             define('PMA_MYSQL_STR_VERSION', '3.23.32');
00149         } else{
00150             define('PMA_MYSQL_INT_VERSION', (int)sprintf('%d%02d%02d', $match[0], $match[1], intval($match[2])));
00151             define('PMA_MYSQL_STR_VERSION', $row[0]);
00152             unset($result, $row, $match);
00153         }
00154     }
00155 
00156     if (PMA_MYSQL_INT_VERSION >= 40100) {
00157 
00158         // If $lang is defined and we are on MySQL >= 4.1.x,
00159         // we auto-switch the lang to its UTF-8 version (if it exists and user didn't force language)
00160         if (!empty($GLOBALS['lang']) && (substr($GLOBALS['lang'], -5) != 'utf-8') && !isset($GLOBALS['cfg']['Lang'])) {
00161             $lang_utf_8_version = substr($GLOBALS['lang'], 0, strpos($GLOBALS['lang'], '-')) . '-utf-8';
00162             if (!empty($GLOBALS['available_languages'][$lang_utf_8_version])) {
00163                 $GLOBALS['lang'] = $lang_utf_8_version;
00164                 $GLOBALS['charset'] = $charset = 'utf-8';
00165             }
00166         }
00167 
00168         // and we remove the non-UTF-8 choices to avoid confusion
00169         if (!defined('PMA_REMOVED_NON_UTF_8')) {
00170             $tmp_available_languages        = $GLOBALS['available_languages']; 
00171             $GLOBALS['available_languages'] = array();
00172             foreach ($tmp_available_languages AS $tmp_lang => $tmp_lang_data) {
00173                 if (substr($tmp_lang, -5) == 'utf-8') {
00174                     $GLOBALS['available_languages'][$tmp_lang] = $tmp_lang_data;
00175                 }
00176             } // end foreach
00177             unset($tmp_lang, $tmp_lang_data, $tmp_available_languages);
00178             define('PMA_REMOVED_NON_UTF_8',1);
00179         }
00180 
00181         $mysql_charset = $GLOBALS['mysql_charset_map'][$GLOBALS['charset']];
00182         if ($is_controluser || empty($collation_connection) || (strpos($collation_connection, '_') ? substr($collation_connection, 0, strpos($collation_connection, '_')) : $collation_connection) == $mysql_charset) {
00183             PMA_DBI_query('SET NAMES ' . $mysql_charset . ';', $link, PMA_DBI_QUERY_STORE);
00184         } else {
00185             PMA_DBI_query('SET CHARACTER SET ' . $mysql_charset . ';', $link, PMA_DBI_QUERY_STORE);
00186         }
00187         if (!empty($collation_connection)) {
00188             PMA_DBI_query('SET collation_connection = \'' . $collation_connection . '\';', $link, PMA_DBI_QUERY_STORE);
00189         }
00190         if (!$is_controluser) {
00191             $collation_connection = PMA_DBI_get_variable('collation_connection',     PMA_DBI_GETVAR_SESSION, $link);
00192             $charset_connection   = PMA_DBI_get_variable('character_set_connection', PMA_DBI_GETVAR_SESSION, $link);
00193         }
00194 
00195         // Add some field types to the list
00196         // (we pass twice here; feel free to code something better :)
00197         if (!defined('PMA_ADDED_FIELD_TYPES')) {
00198             $GLOBALS['cfg']['ColumnTypes'][] = 'BINARY';
00199             $GLOBALS['cfg']['ColumnTypes'][] = 'VARBINARY';
00200             define('PMA_ADDED_FIELD_TYPES',1);
00201         }
00202 
00203     } else {
00204         require_once('./libraries/charset_conversion.lib.php');
00205     }
00206 }
00207 
00208 ?>


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