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