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, $table)
  43 {
  44     if (strstr($table['Comment'], '; InnoDB free') === false) {
  45         if (!strstr($table['Comment'], 'InnoDB free') === false) {
  46             // here we have just InnoDB generated part
  47             $table['Comment'] = '';
  48         }
  49     } else {
  50         // remove InnoDB comment from end, just the minimal part (*? is non greedy)
  51         $table['Comment'] = preg_replace('@; InnoDB free:.*?$@', '', $table['Comment']);
  52     }
  53     // views have VIEW as comment so it's not a real comment put by a user
  54     if ('VIEW' == $table['Comment']) {
  55         $table['Comment'] = '';
  56     }
  57     if (empty($table['Comment'])) {
  58         $table['Comment'] = $table['Name'];
  59     } else {
  60         // why?
  61         $table['Comment'] .= ' ';
  62     }
  63
  64     if ($GLOBALS['cfg']['ShowTooltipAliasTB']
  65      && $GLOBALS['cfg']['ShowTooltipAliasTB'] != 'nested') {
  66         $tooltip_truename[$table['Name']] = $table['Comment'];
  67         $tooltip_aliasname[$table['Name']] = $table['Name'];
  68     } else {
  69         $tooltip_truename[$table['Name']] = $table['Name'];
  70         $tooltip_aliasname[$table['Name']] = $table['Comment'];
  71     }
  72
  73     if (isset($table['Create_time']) && !empty($table['Create_time'])) {
  74         $tooltip_aliasname[$table['Name']] .= ', ' . __('Creation')
  75              . ': ' . PMA_localisedDate(strtotime($table['Create_time']));
  76     }
  77
  78     if (! empty($table['Update_time'])) {
  79         $tooltip_aliasname[$table['Name']] .= ', ' . __('Last update')
  80              . ': ' . PMA_localisedDate(strtotime($table['Update_time']));
  81     }
  82
  83     if (! empty($table['Check_time'])) {
  84         $tooltip_aliasname[$table['Name']] .= ', ' . __('Last check')
  85              . ': ' . PMA_localisedDate(strtotime($table['Check_time']));
  86     }
  87 }
  88
  89 PMA_checkParameters(array('db'));
  90
  91 /**
  92  * @global bool whether to display extended stats
  93  */
  94 $is_show_stats = $cfg['ShowStats'];
  95
  96 /**
  97  * @global bool whether selected db is information_schema
  98  */
  99 $db_is_information_schema = false;
 100
 101 if (PMA_is_system_schema($db)) {
 102     $is_show_stats = false;
 103     $db_is_information_schema = true;
 104 }
 105
 106 /**
 107  * @global array information about tables in db
 108  */
 109 $tables = array();
 110
 111 // When used in Nested table group mode, only show tables matching the given groupname
 112 if (PMA_isValid($tbl_group) && !$cfg['ShowTooltipAliasTB']) {
 113     $tbl_group_sql = ' LIKE "' . PMA_escape_mysql_wildcards($tbl_group) . '%"';
 114 } else {
 115     $tbl_group_sql = '';
 116 }
 117
 118 if ($cfg['ShowTooltip']) {
 119     $tooltip_truename = array();
 120     $tooltip_aliasname = array();
 121 }
 122
 123 // Special speedup for newer MySQL Versions (in 4.0 format changed)
 124 if (true === $cfg['SkipLockedTables']) {
 125     $db_info_result = PMA_DBI_query('SHOW OPEN TABLES FROM ' . PMA_backquote($db) . ';');
 126
 127     // Blending out tables in use
 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 in use memorize tablename
 131             if (preg_match('@in_use=[1-9]+@i', $tmp[1])) {
 132                 $sot_cache[$tmp[0]] = true;
 133             }
 134         }
 135         PMA_DBI_free_result($db_info_result);
 136
 137         if (isset($sot_cache)) {
 138             $db_info_result = PMA_DBI_query(
 139                 'SHOW TABLES FROM ' . PMA_backquote($db) . $tbl_group_sql . ';',
 140                 null, PMA_DBI_QUERY_STORE);
 141             if ($db_info_result && PMA_DBI_num_rows($db_info_result) > 0) {
 142                 while ($tmp = PMA_DBI_fetch_row($db_info_result)) {
 143                     if (! isset($sot_cache[$tmp[0]])) {
 144                         $sts_result  = PMA_DBI_query(
 145                             'SHOW TABLE STATUS FROM ' . PMA_backquote($db)
 146                              . ' LIKE \'' . PMA_sqlAddSlashes($tmp[0], true) . '\';');
 147                         $sts_tmp     = PMA_DBI_fetch_assoc($sts_result);
 148                         PMA_DBI_free_result($sts_result);
 149                         unset($sts_result);
 150
 151                         if (! isset($sts_tmp['Type']) && isset($sts_tmp['Engine'])) {
 152                             $sts_tmp['Type'] =& $sts_tmp['Engine'];
 153                         }
 154
 155                         if (!empty($tbl_group) && $cfg['ShowTooltipAliasTB']
 156                          && !preg_match('@' . preg_quote($tbl_group, '@') . '@i', $sts_tmp['Comment'])) {
 157                             continue;
 158                         }
 159
 160                         if ($cfg['ShowTooltip']) {
 161                             PMA_fillTooltip($tooltip_truename, $tooltip_aliasname, $sts_tmp);
 162                         }
 163
 164                         $tables[$sts_tmp['Name']]    = $sts_tmp;
 165                     } else { // table in use
 166                         $tables[$tmp[0]]    = array('Name' => $tmp[0]);
 167                     }
 168                 }
 169                 if ($GLOBALS['cfg']['NaturalOrder']) {
 170                     uksort($tables, 'strnatcasecmp');
 171                 }
 172
 173                 $sot_ready = true;
 174             } elseif ($db_info_result) {
 175                 PMA_DBI_free_result($db_info_result);
 176             }
 177             unset($sot_cache);
 178         }
 179         unset($tmp);
 180     } elseif ($db_info_result) {
 181         PMA_DBI_free_result($db_info_result);
 182     }
 183 }
 184
 185 if (! isset($sot_ready)) {
 186
 187     // Set some sorting defaults
 188     $sort = 'Name';
 189     $sort_order = 'ASC';
 190
 191     if (isset($_REQUEST['sort'])) {
 192         $sortable_name_mappings = array(
 193             'table'     => 'Name',
 194             'records'   => 'Rows',
 195             'type'      => 'Engine',
 196             'collation' => 'Collation',
 197             'size'      => 'Data_length',
 198             'overhead'  => 'Data_free'
 199         );
 200
 201         // Make sure the sort type is implemented
 202         if (isset($sortable_name_mappings[$_REQUEST['sort']])) {
 203             $sort = $sortable_name_mappings[$_REQUEST['sort']];
 204             if ($_REQUEST['sort_order'] == 'DESC') {
 205                 $sort_order = 'DESC';
 206             }
 207         }
 208     }
 209
 210     if (! empty($tbl_group) && ! $cfg['ShowTooltipAliasTB']) {
 211         // only tables for selected group
 212         $tables = PMA_DBI_get_tables_full($db, $tbl_group, true, null, 0, false, $sort, $sort_order);
 213     } elseif (! empty($tbl_group) && $cfg['ShowTooltipAliasTB']) {
 214         // only tables for selected group,
 215         // but grouping is done on comment ...
 216         $tables = PMA_DBI_get_tables_full($db, $tbl_group, 'comment', null, 0, false, $sort, $sort_order);
 217     } else {
 218         // all tables in db
 219         // - get the total number of tables
 220         //  (needed for proper working of the MaxTableList feature)
 221         $tables = PMA_DBI_get_tables($db);
 222         $total_num_tables = count($tables);
 223         if (isset($sub_part) && $sub_part == '_export') {
 224             // (don't fetch only a subset if we are coming from db_export.php,
 225             // because I think it's too risky to display only a subset of the
 226             // table names when exporting a db)
 227             /**
 228              *
 229              * @todo Page selector for table names?
 230              */
 231             $tables = PMA_DBI_get_tables_full($db, false, false, null, 0, false, $sort, $sort_order);
 232         } else {
 233             // fetch the details for a possible limited subset
 234             $tables = PMA_DBI_get_tables_full($db, false, false, null, $pos, true, $sort, $sort_order);
 235         }
 236     }
 237
 238     if ($cfg['ShowTooltip']) {
 239         foreach ($tables as $each_table) {
 240             PMA_fillTooltip($tooltip_truename, $tooltip_aliasname, $each_table);
 241         }
 242     }
 243 }
 244
 245 /**
 246  * @global int count of tables in db
 247  */
 248 $num_tables = count($tables);
 249 //  (needed for proper working of the MaxTableList feature)
 250 if (! isset($total_num_tables)) {
 251     $total_num_tables = $num_tables;
 252 }
 253
 254 /**
 255  * cleanup
 256  */
 257 unset($each_table, $tbl_group_sql, $db_info_result);
 258
 259 /**
 260  * Displays top menu links
 261  * If in an Ajax request, we do not need to show this
 262  */
 263 if ($GLOBALS['is_ajax_request'] != true) {
 264     include './libraries/db_links.inc.php';
 265 }
 266 ?>