libraries/db_info.inc.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * Gets the list of the table in the current db and informations about these
   5  * tables if possible
   6  *
   7  * fills tooltip arrays and provides $tables, $num_tables, $is_show_stats
   8  * and $db_is_information_schema
   9  *
  10  * staybyte: speedup view on locked tables - 11 June 2001
  11  *
  12  * @uses    $cfg['ShowStats']
  13  * @uses    $cfg['ShowTooltip']
  14  * @uses    $cfg['ShowTooltipAliasTB']
  15  * @uses    $cfg['SkipLockedTables']
  16  * @uses    $GLOBALS['db']
  17  * @uses    PMA_fillTooltip()
  18  * @uses    PMA_checkParameters()
  19  * @uses    PMA_escape_mysql_wildcards()
  20  * @uses    PMA_DBI_query()
  21  * @uses    PMA_backquote()
  22  * @uses    PMA_DBI_num_rows()
  23  * @uses    PMA_DBI_fetch_row()
  24  * @uses    PMA_DBI_fetch_assoc()
  25  * @uses    PMA_DBI_free_result()
  26  * @uses    PMA_DBI_get_tables_full()
  27  * @uses    PMA_isValid()
  28  * @uses    preg_match()
  29  * @uses    preg_quote()
  30  * @uses    uksort()
  31  * @uses    strnatcasecmp()
  32  * @uses    count()
  33  * @uses    addslashes()
  34  * @version $Id$
  35  * @package phpMyAdmin
  36  */
  37 if (! defined('PHPMYADMIN')) {
  38     exit;
  39 }
  40
  41 /**
  42  * requirements
  43  */
  44 require_once './libraries/common.inc.php';
  45
  46 /**
  47  * limits for table list
  48  */
  49 if (! isset($_SESSION['tmp_user_values']['table_limit_offset']) || $_SESSION['tmp_user_values']['table_limit_offset_db'] != $db) {
  50     $_SESSION['tmp_user_values']['table_limit_offset'] = 0;
  51     $_SESSION['tmp_user_values']['table_limit_offset_db'] = $db;
  52 }
  53 if (isset($_REQUEST['pos'])) {
  54     $_SESSION['tmp_user_values']['table_limit_offset'] = (int) $_REQUEST['pos'];
  55 }
  56 $pos = $_SESSION['tmp_user_values']['table_limit_offset'];
  57
  58 /**
  59  * fills given tooltip arrays
  60  *
  61  * @uses    $cfg['ShowTooltipAliasTB']
  62  * @uses    $GLOBALS['strStatCreateTime']
  63  * @uses    PMA_localisedDate()
  64  * @uses    strtotime()
  65  * @param   array   $tooltip_truename   tooltip data
  66  * @param   array   $tooltip_aliasname  tooltip data
  67  * @param   array   $table              tabledata
  68  */
  69 function PMA_fillTooltip(&$tooltip_truename, &$tooltip_aliasname, $table)
  70 {
  71     if (empty($table['Comment'])) {
  72         $table['Comment'] = $table['Name'];
  73     } else {
  74         // why?
  75         $table['Comment'] .= ' ';
  76     }
  77
  78     if ($GLOBALS['cfg']['ShowTooltipAliasTB']
  79      && $GLOBALS['cfg']['ShowTooltipAliasTB'] != 'nested') {
  80         $tooltip_truename[$table['Name']] = $table['Comment'];
  81         $tooltip_aliasname[$table['Name']] = $table['Name'];
  82     } else {
  83         $tooltip_truename[$table['Name']] = $table['Name'];
  84         $tooltip_aliasname[$table['Name']] = $table['Comment'];
  85     }
  86
  87     if (isset($table['Create_time']) && !empty($table['Create_time'])) {
  88         $tooltip_aliasname[$table['Name']] .= ', ' . $GLOBALS['strStatCreateTime']
  89              . ': ' . PMA_localisedDate(strtotime($table['Create_time']));
  90     }
  91
  92     if (! empty($table['Update_time'])) {
  93         $tooltip_aliasname[$table['Name']] .= ', ' . $GLOBALS['strStatUpdateTime']
  94              . ': ' . PMA_localisedDate(strtotime($table['Update_time']));
  95     }
  96
  97     if (! empty($table['Check_time'])) {
  98         $tooltip_aliasname[$table['Name']] .= ', ' . $GLOBALS['strStatCheckTime']
  99              . ': ' . PMA_localisedDate(strtotime($table['Check_time']));
 100     }
 101 }
 102
 103 PMA_checkParameters(array('db'));
 104
 105 /**
 106  * @global bool whether to display extended stats
 107  */
 108 $is_show_stats = $cfg['ShowStats'];
 109
 110 /**
 111  * @global bool whether selected db is information_schema
 112  */
 113 $db_is_information_schema = false;
 114
 115 if ($db == 'information_schema') {
 116     $is_show_stats = false;
 117     $db_is_information_schema = true;
 118 }
 119
 120 /**
 121  * @global array information about tables in db
 122  */
 123 $tables = array();
 124
 125 // When used in Nested table group mode, only show tables matching the given groupname
 126 if (PMA_isValid($tbl_group) && !$cfg['ShowTooltipAliasTB']) {
 127     $tbl_group_sql = ' LIKE "' . PMA_escape_mysql_wildcards($tbl_group) . '%"';
 128 } else {
 129     $tbl_group_sql = '';
 130 }
 131
 132 if ($cfg['ShowTooltip']) {
 133     $tooltip_truename = array();
 134     $tooltip_aliasname = array();
 135 }
 136
 137 // Special speedup for newer MySQL Versions (in 4.0 format changed)
 138 if (true === $cfg['SkipLockedTables']) {
 139     $db_info_result = PMA_DBI_query('SHOW OPEN TABLES FROM ' . PMA_backquote($db) . ';');
 140
 141     // Blending out tables in use
 142     if ($db_info_result && PMA_DBI_num_rows($db_info_result) > 0) {
 143         while ($tmp = PMA_DBI_fetch_row($db_info_result)) {
 144             // if in use memorize tablename
 145             if (preg_match('@in_use=[1-9]+@i', $tmp[1])) {
 146                 $sot_cache[$tmp[0]] = true;
 147             }
 148         }
 149         PMA_DBI_free_result($db_info_result);
 150
 151         if (isset($sot_cache)) {
 152             $db_info_result = PMA_DBI_query(
 153                 'SHOW TABLES FROM ' . PMA_backquote($db) . $tbl_group_sql . ';',
 154                 null, PMA_DBI_QUERY_STORE);
 155             if ($db_info_result && PMA_DBI_num_rows($db_info_result) > 0) {
 156                 while ($tmp = PMA_DBI_fetch_row($db_info_result)) {
 157                     if (!isset($sot_cache[$tmp[0]])) {
 158                         $sts_result  = PMA_DBI_query(
 159                             'SHOW TABLE STATUS FROM ' . PMA_backquote($db)
 160                              . ' LIKE \'' . addslashes($tmp[0]) . '\';');
 161                         $sts_tmp     = PMA_DBI_fetch_assoc($sts_result);
 162                         PMA_DBI_free_result($sts_result);
 163                         unset($sts_result);
 164
 165                         if (!isset($sts_tmp['Type']) && isset($sts_tmp['Engine'])) {
 166                             $sts_tmp['Type'] =& $sts_tmp['Engine'];
 167                         }
 168
 169                         if (!empty($tbl_group) && $cfg['ShowTooltipAliasTB']
 170                          && !preg_match('@' . preg_quote($tbl_group, '@') . '@i', $sts_tmp['Comment'])) {
 171                             continue;
 172                         }
 173
 174                         if ($cfg['ShowTooltip']) {
 175                             PMA_fillTooltip($tooltip_truename, $tooltip_aliasname, $sts_tmp);
 176                         }
 177
 178                         $tables[$sts_tmp['Name']]    = $sts_tmp;
 179                     } else { // table in use
 180                         $tables[$tmp[0]]    = array('Name' => $tmp[0]);
 181                     }
 182                 }
 183                 if ($GLOBALS['cfg']['NaturalOrder']) {
 184                     uksort($tables, 'strnatcasecmp');
 185                 }
 186
 187                 $sot_ready = true;
 188             } elseif ($db_info_result) {
 189                 PMA_DBI_free_result($db_info_result);
 190             }
 191             unset($sot_cache);
 192         }
 193         unset($tmp);
 194     } elseif ($db_info_result) {
 195         PMA_DBI_free_result($db_info_result);
 196     }
 197 }
 198
 199 if (! isset($sot_ready)) {
 200
 201     // Set some sorting defaults
 202     $sort = 'Name';
 203     $sort_order = 'ASC';
 204
 205     if (isset($_REQUEST['sort'])) {
 206         $sortable_name_mappings = array(
 207             'table'     => 'Name',
 208             'records'   => 'Rows',
 209             'type'      => 'Engine',
 210             'collation' => 'Collation',
 211             'size'      => 'Data_length',
 212             'overhead'  => 'Data_free'
 213         );
 214
 215         // Make sure the sort type is implemented
 216         if (isset($sortable_name_mappings[$_REQUEST['sort']])) {
 217             $sort = $sortable_name_mappings[$_REQUEST['sort']];
 218             if ($_REQUEST['sort_order'] == 'DESC') {
 219                 $sort_order = 'DESC';
 220             }
 221         }
 222     }
 223
 224     if (! empty($tbl_group) && ! $cfg['ShowTooltipAliasTB']) {
 225         // only tables for selected group
 226         $tables = PMA_DBI_get_tables_full($db, $tbl_group, true, null, 0, false, $sort, $sort_order);
 227     } elseif (! empty($tbl_group) && $cfg['ShowTooltipAliasTB']) {
 228         // only tables for selected group,
 229         // but grouping is done on comment ...
 230         $tables = PMA_DBI_get_tables_full($db, $tbl_group, 'comment', null, 0, false, $sort, $sort_order);
 231     } else {
 232         // all tables in db
 233         // - get the total number of tables
 234         //  (needed for proper working of the MaxTableList feature)
 235         $tables = PMA_DBI_get_tables($db);
 236         $total_num_tables = count($tables);
 237         if (isset($sub_part) && $sub_part == '_export') {
 238             // (don't fetch only a subset if we are coming from db_export.php,
 239             // because I think it's too risky to display only a subset of the
 240             // table names when exporting a db)
 241             /**
 242              *
 243              * @todo Page selector for table names?
 244              */
 245             $tables = PMA_DBI_get_tables_full($db, false, false, null, 0, false, $sort, $sort_order);
 246         } else {
 247             // fetch the details for a possible limited subset
 248             $tables = PMA_DBI_get_tables_full($db, false, false, null, $pos, true, $sort, $sort_order);
 249         }
 250     }
 251
 252     if ($cfg['ShowTooltip']) {
 253         foreach ($tables as $each_table) {
 254             PMA_fillTooltip($tooltip_truename, $tooltip_aliasname, $each_table);
 255         }
 256     }
 257 }
 258
 259 /**
 260  * @global int count of tables in db
 261  */
 262 $num_tables = count($tables);
 263 //  (needed for proper working of the MaxTableList feature)
 264 if (! isset($total_num_tables)) {
 265     $total_num_tables = $num_tables;
 266 }
 267
 268 /**
 269  * cleanup
 270  */
 271 unset($each_table, $tbl_group_sql, $db_info_result);
 272
 273 /**
 274  * Displays top menu links
 275  */
 276 require './libraries/db_links.inc.php';
 277 ?>