phpmyadmin/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 $db_is_information_schema
   9  *
  10  * speedup view on locked tables
  11  *
  12  * @package PhpMyAdmin
  13  */
  14 if (! defined('PHPMYADMIN')) {
  15     exit;
  16 }
  17
  18 /**
  19  * limits for table list
  20  */
  21 if (! isset($_SESSION['tmp_user_values']['table_limit_offset'])
  22     || $_SESSION['tmp_user_values']['table_limit_offset_db'] != $db
  23 ) {
  24     $_SESSION['tmp_user_values']['table_limit_offset'] = 0;
  25     $_SESSION['tmp_user_values']['table_limit_offset_db'] = $db;
  26 }
  27 if (isset($_REQUEST['pos'])) {
  28     $_SESSION['tmp_user_values']['table_limit_offset'] = (int) $_REQUEST['pos'];
  29 }
  30 $pos = $_SESSION['tmp_user_values']['table_limit_offset'];
  31
  32 PMA_Util::checkParameters(array('db'));
  33
  34 /**
  35  * @global bool whether to display extended stats
  36  */
  37 $is_show_stats = $cfg['ShowStats'];
  38
  39 /**
  40  * @global bool whether selected db is information_schema
  41  */
  42 $db_is_information_schema = false;
  43
  44 if (PMA_is_system_schema($db)) {
  45     $is_show_stats = false;
  46     $db_is_information_schema = true;
  47 }
  48
  49 /**
  50  * @global array information about tables in db
  51  */
  52 $tables = array();
  53
  54 // When used in Nested table group mode,
  55 // only show tables matching the given groupname
  56 if (PMA_isValid($tbl_group)) {
  57     $tbl_group_sql = ' LIKE "'
  58         . PMA_Util::escapeMysqlWildcards($tbl_group)
  59         . '%"';
  60 } else {
  61     $tbl_group_sql = '';
  62 }
  63
  64 $tooltip_truename = array();
  65 $tooltip_aliasname = array();
  66
  67 // Special speedup for newer MySQL Versions (in 4.0 format changed)
  68 if (true === $cfg['SkipLockedTables']) {
  69     $db_info_result = PMA_DBI_query(
  70         'SHOW OPEN TABLES FROM ' . PMA_Util::backquote($db) . ';'
  71     );
  72
  73     // Blending out tables in use
  74     if ($db_info_result && PMA_DBI_num_rows($db_info_result) > 0) {
  75         while ($tmp = PMA_DBI_fetch_row($db_info_result)) {
  76             // if in use memorize tablename
  77             if (preg_match('@in_use=[1-9]+@i', $tmp[1])) {
  78                 $sot_cache[$tmp[0]] = true;
  79             }
  80         }
  81         PMA_DBI_free_result($db_info_result);
  82
  83         if (isset($sot_cache)) {
  84             $db_info_result = PMA_DBI_query(
  85                 'SHOW TABLES FROM ' . PMA_Util::backquote($db) . $tbl_group_sql . ';',
  86                 null, PMA_DBI_QUERY_STORE
  87             );
  88             if ($db_info_result && PMA_DBI_num_rows($db_info_result) > 0) {
  89                 while ($tmp = PMA_DBI_fetch_row($db_info_result)) {
  90                     if (! isset($sot_cache[$tmp[0]])) {
  91                         $sts_result  = PMA_DBI_query(
  92                             'SHOW TABLE STATUS FROM ' . PMA_Util::backquote($db)
  93                             . ' LIKE \'' . PMA_Util::sqlAddSlashes($tmp[0], true) . '\';'
  94                         );
  95                         $sts_tmp     = PMA_DBI_fetch_assoc($sts_result);
  96                         PMA_DBI_free_result($sts_result);
  97                         unset($sts_result);
  98
  99                         if (! isset($sts_tmp['Type']) && isset($sts_tmp['Engine'])) {
 100                             $sts_tmp['Type'] =& $sts_tmp['Engine'];
 101                         }
 102
 103                         if (! empty($tbl_group)
 104                             && ! preg_match('@' . preg_quote($tbl_group, '@') . '@i', $sts_tmp['Comment'])
 105                         ) {
 106                             continue;
 107                         }
 108
 109                         if ($cfg['ShowTooltip']) {
 110                             PMA_Util::fillTooltip(
 111                                 $tooltip_truename, $tooltip_aliasname, $sts_tmp
 112                             );
 113                         }
 114
 115                         $tables[$sts_tmp['Name']]    = $sts_tmp;
 116                     } else { // table in use
 117                         $tables[$tmp[0]]    = array('Name' => $tmp[0]);
 118                     }
 119                 }
 120                 if ($GLOBALS['cfg']['NaturalOrder']) {
 121                     uksort($tables, 'strnatcasecmp');
 122                 }
 123
 124                 $sot_ready = true;
 125             } elseif ($db_info_result) {
 126                 PMA_DBI_free_result($db_info_result);
 127             }
 128             unset($sot_cache);
 129         }
 130         unset($tmp);
 131     } elseif ($db_info_result) {
 132         PMA_DBI_free_result($db_info_result);
 133     }
 134 }
 135
 136 if (! isset($sot_ready)) {
 137
 138     // Set some sorting defaults
 139     $sort = 'Name';
 140     $sort_order = 'ASC';
 141
 142     if (isset($_REQUEST['sort'])) {
 143         $sortable_name_mappings = array(
 144             'table'       => 'Name',
 145             'records'     => 'Rows',
 146             'type'        => 'Engine',
 147             'collation'   => 'Collation',
 148             'size'        => 'Data_length',
 149             'overhead'    => 'Data_free',
 150             'creation'    => 'Create_time',
 151             'last_update' => 'Update_time',
 152             'last_check'  => 'Check_time'
 153         );
 154
 155         // Make sure the sort type is implemented
 156         if (isset($sortable_name_mappings[$_REQUEST['sort']])) {
 157             $sort = $sortable_name_mappings[$_REQUEST['sort']];
 158             if ($_REQUEST['sort_order'] == 'DESC') {
 159                 $sort_order = 'DESC';
 160             }
 161         }
 162     }
 163
 164     if (! empty($tbl_group)) {
 165         // only tables for selected group
 166         $tables = PMA_DBI_get_tables_full(
 167             $db, $tbl_group, true, null, 0, false, $sort, $sort_order
 168         );
 169     } else {
 170         // all tables in db
 171         // - get the total number of tables
 172         //  (needed for proper working of the MaxTableList feature)
 173         $tables = PMA_DBI_get_tables($db);
 174         $total_num_tables = count($tables);
 175         if (isset($sub_part) && $sub_part == '_export') {
 176             // (don't fetch only a subset if we are coming from db_export.php,
 177             // because I think it's too risky to display only a subset of the
 178             // table names when exporting a db)
 179             /**
 180              *
 181              * @todo Page selector for table names?
 182              */
 183             $tables = PMA_DBI_get_tables_full(
 184                 $db, false, false, null, 0, false, $sort, $sort_order
 185             );
 186         } else {
 187             // fetch the details for a possible limited subset
 188             $tables = PMA_DBI_get_tables_full(
 189                 $db, false, false, null, $pos, true, $sort, $sort_order
 190             );
 191         }
 192     }
 193
 194     if ($cfg['ShowTooltip']) {
 195         foreach ($tables as $each_table) {
 196             PMA_Util::fillTooltip(
 197                 $tooltip_truename, $tooltip_aliasname, $each_table
 198             );
 199         }
 200     }
 201 }
 202
 203 /**
 204  * @global int count of tables in db
 205  */
 206 $num_tables = count($tables);
 207 //  (needed for proper working of the MaxTableList feature)
 208 if (! isset($total_num_tables)) {
 209     $total_num_tables = $num_tables;
 210 }
 211
 212 /**
 213  * cleanup
 214  */
 215 unset($each_table, $tbl_group_sql, $db_info_result);
 216
 217 /**
 218  * If coming from a Show MySQL link on the home page,
 219  * put something in $sub_part
 220  */
 221 if (empty($sub_part)) {
 222     $sub_part = '_structure';
 223 }
 224 ?>