From 0fe04f4b586871f3b49d43eabbf788ca2e88faaf Mon Sep 17 00:00:00 2001
From: "Alexander M. Turek" <me@derrabus.de>
Date: Tue, 18 Jan 2005 15:29:27 +0000
Subject: [PATCH] Emulation for MySQL 4.1.2

---
 ChangeLog                         |  4 +++
 libraries/storage_engines.lib.php | 60 ++++++++++++++++++++++++++-----
 server_engines.php                | 24 +++++++------
 server_links.inc.php              |  4 +--
 4 files changed, 71 insertions(+), 21 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 09b6b9013..994d3fb49 100755
--- a/ChangeLog
+++ b/ChangeLog
@@ -5,6 +5,10 @@ phpMyAdmin - Changelog
 $Id$
 $Source$
 
+2005-01-18 Alexander M. Turek  <me@derrabus.de>
+    * server_engines.php, libraries/storage_engines.lib.php: Emulation for
+      < MySQL 4.1.2.
+
 2005-01-17 Michael Keck  <mkkeck@users.sourceforge.net>
     * libraries/common.lib.php: modified function for
       Add a link by MySQL-Error #1062 - Duplicate entry
diff --git a/libraries/storage_engines.lib.php b/libraries/storage_engines.lib.php
index 53bb6c53e..9d2177576 100644
--- a/libraries/storage_engines.lib.php
+++ b/libraries/storage_engines.lib.php
@@ -4,17 +4,61 @@
 
 /**
  * Library for extracting information about the available storage engines
- *
- * Requires at least MySQL 4.1.2
- * TODO: Emulation for earlier versions.
  */
 
 $GLOBALS['mysql_storage_engines'] = array();
-$res = PMA_DBI_query('SHOW STORAGE ENGINES');
-while ($row = PMA_DBI_fetch_assoc($res)) {
-    $GLOBALS['mysql_storage_engines'][strtolower($row['Engine'])] = $row;
+
+if (PMA_MYSQL_INT_VERSION >= 40102) {
+    /**
+     * For MySQL >= 4.1.2, the job is easy...
+     */
+    $res = PMA_DBI_query('SHOW STORAGE ENGINES');
+    while ($row = PMA_DBI_fetch_assoc($res)) {
+        $GLOBALS['mysql_storage_engines'][strtolower($row['Engine'])] = $row;
+    }
+    PMA_DBI_free_result($res);
+    unset($res, $row);
+} else {
+    /**
+     * Emulating SHOW STORAGE ENGINES...
+     */
+    $GLOBALS['mysql_storage_engines'] = array(
+        'myisam' => array(
+            'Engine'  => 'MyISAM',
+            'Support' => 'DEFAULT'
+        ),
+        'merge' => array(
+            'Engine'  => 'MERGE',
+            'Support' => 'YES'
+        ),
+        'heap' => array(
+            'Engine'  => 'HEAP',
+            'Support' => 'YES'
+        ),
+        'memory' => array(
+            'Engine'  => 'MEMORY',
+            'Support' => 'YES'
+        )
+    );
+    $known_engines = array(
+        'archive' => 'ARCHIVE',
+        'bdb'     => 'BDB',
+        'csv'     => 'CSV',
+        'innodb'  => 'InnoDB',
+        'isam'    => 'ISAM'
+    );
+    $res = PMA_DBI_query('SHOW VARIABLES LIKE \'have\\_%\';');
+    while ($row = PMA_DBI_fetch_row($res)) {
+        $current = substr($row[0], 5);
+        if (!empty($known_engines[$current])) {
+            $GLOBALS['mysql_storage_engines'][$current] = array(
+                'Engine'  => $known_engines[$current],
+                'Support' => $row[1]
+            );
+        }
+    }
+    PMA_DBI_free_result($res);
+    unset($known_engines, $res, $row);
 }
-PMA_DBI_free_result($res);
-unset($res, $row);
 
 ?>
diff --git a/server_engines.php b/server_engines.php
index 704589fed..22cf8419f 100644
--- a/server_engines.php
+++ b/server_engines.php
@@ -127,11 +127,13 @@ if (empty($engine) || empty($mysql_storage_engines[$engine])) {
        . '        <tr>' . "\n"
        . '            <th>' . "\n"
        . '                ' . $strStorageEngine . "\n"
-       . '            </th>' . "\n"
-       . '            <th>' . "\n"
-       . '                ' . $strDescription . "\n"
-       . '            </th>' . "\n"
-       . '        </tr>' . "\n"
+       . '            </th>' . "\n";
+    if (PMA_MYSQL_INT_VERSION >= 40102) {
+        echo '            <th>' . "\n"
+           . '                ' . $strDescription . "\n"
+           . '            </th>' . "\n";
+    }
+    echo '        </tr>' . "\n"
        . '    </thead>' . "\n"
        . '    <tbody>' . "\n";
 
@@ -147,11 +149,13 @@ if (empty($engine) || empty($mysql_storage_engines[$engine])) {
            . '                <a href="' . $common_url . $engine . '">' . "\n"
            . '                    ' . htmlspecialchars($details['Engine']) . "\n"
            . '                </a>' . "\n"
-           . '            </td>' . "\n"
-           . '            <td bgcolor="' . ($useBgcolorOne ? $cfg['BgcolorOne'] : $cfg['BgcolorTwo']) . '">' . "\n"
-           . '                ' . htmlspecialchars($details['Comment']) . "\n"
-           . '            </td>' . "\n"
-           . '        </tr>' . "\n";
+           . '            </td>' . "\n";
+        if (PMA_MYSQL_INT_VERSION >= 40102) {
+            echo '            <td bgcolor="' . ($useBgcolorOne ? $cfg['BgcolorOne'] : $cfg['BgcolorTwo']) . '">' . "\n"
+               . '                ' . htmlspecialchars($details['Comment']) . "\n"
+               . '            </td>' . "\n";
+        }
+        echo '        </tr>' . "\n";
         $useBgcolorOne = !$useBgcolorOne;
     }
     unset($useBgcolorOne, $common_url, $engine, $details);
diff --git a/server_links.inc.php b/server_links.inc.php
index 8ad494a4b..2b2d4b37c 100644
--- a/server_links.inc.php
+++ b/server_links.inc.php
@@ -53,9 +53,7 @@ if ($cfg['ShowMysqlVars']) {
 if (PMA_MYSQL_INT_VERSION >= 40100) {
     echo PMA_printTab(($GLOBALS['cfg']['MainPageIconic'] ? '<img src="' . $GLOBALS['pmaThemeImage'] . 's_asci.png" width="16" height="16" border="0" hspace="2" align="middle" alt="'.$strCharsets.'" />' : '') . $strCharsets, 'server_collations.php', $url_query);
 }
-if (PMA_MYSQL_INT_VERSION >= 40102) {
-    echo PMA_printTab(($GLOBALS['cfg']['MainPageIconic'] ? '<img src="' . $GLOBALS['pmaThemeImage'] . 's_process.png" width="16" height="16" border="0" hspace="2" align="middle" alt="' . $strEngines . '" />' : '') . $strEngines, 'server_engines.php', $url_query);
-}
+echo PMA_printTab(($GLOBALS['cfg']['MainPageIconic'] ? '<img src="' . $GLOBALS['pmaThemeImage'] . 's_process.png" width="16" height="16" border="0" hspace="2" align="middle" alt="' . $strEngines . '" />' : '') . $strEngines, 'server_engines.php', $url_query);
 if ($is_superuser) {
     echo PMA_printTab(($GLOBALS['cfg']['MainPageIconic'] ? '<img src="' . $GLOBALS['pmaThemeImage'] . 's_rights.png" width="16" height="16" border="0" hspace="2" align="middle" alt="'.$strPrivileges.'" />' : '') . $strPrivileges, 'server_privileges.php', $url_query);
 }