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  * @uses    $cfg['ShowStats']
  13  * @uses    $cfg['ShowTooltip']
  14  * @uses    $cfg['ShowTooltipAliasTB']
  15  * @uses    $cfg['SkipLockedTables']
  16  * @uses    $GLOBALS['db']
  17  * @uses    PMA_fillTooltip()
  18  * @uses    PMA_checkParameters()
  19  * @uses    PMA_escape_mysql_wildcards()
  20  * @uses    PMA_DBI_query()
  21  * @uses    PMA_backquote()
  22  * @uses    PMA_DBI_num_rows()
  23  * @uses    PMA_DBI_fetch_row()
  24  * @uses    PMA_DBI_fetch_assoc()
  25  * @uses    PMA_DBI_free_result()
  26  * @uses    PMA_DBI_get_tables_full()
  27  * @uses    PMA_isValid()
  28  * @uses    preg_match()
  29  * @uses    preg_quote()
  30  * @uses    uksort()
  31  * @uses    strnatcasecmp()
  32  * @uses    count()
  33  * @uses    addslashes()
  34  * @package phpMyAdmin
  35  */
  36 if (! defined('PHPMYADMIN')) {
  37     exit;
  38 }
  39
  40 /**
  41  * requirements
  42  */
  43 require_once './libraries/common.inc.php';
  44
  45 /**
  46  * limits for table list
  47  */
  48 if (! isset($_SESSION['tmp_user_values']['table_limit_offset']) || $_SESSION['tmp_user_values']['table_limit_offset_db'] != $db) {
  49     $_SESSION['tmp_user_values']['table_limit_offset'] = 0;
  50     $_SESSION['tmp_user_values']['table_limit_offset_db'] = $db;
  51 }
  52 if (isset($_REQUEST['pos'])) {
  53     $_SESSION['tmp_user_values']['table_limit_offset'] = (int) $_REQUEST['pos'];
  54 }
  55 $pos = $_SESSION['tmp_user_values']['table_limit_offset'];
  56
  57 /**
  58  * fills given tooltip arrays
  59  *
  60  * @uses    $cfg['ShowTooltipAliasTB']
  61  * @uses    PMA_localisedDate()
  62  * @uses    strtotime()
  63  * @param   array   $tooltip_truename   tooltip data
  64  * @param   array   $tooltip_aliasname  tooltip data
  65  * @param   array   $table              tabledata
  66  */
  67 function PMA_fillTooltip(&$tooltip_truename, &$tooltip_aliasname, $table)
  68 {
  69     if (empty($table['Comment'])) {
  70         $table['Comment'] = $table['Name'];
  71     } else {
  72         // why?
  73         $table['Comment'] .= ' ';
  74     }
  75
  76     if ($GLOBALS['cfg']['ShowTooltipAliasTB']
  77      && $GLOBALS['cfg']['ShowTooltipAliasTB'] != 'nested') {
  78         $tooltip_truename[$table['Name']] = $table['Comment'];
  79         $tooltip_aliasname[$table['Name']] = $table['Name'];
  80     } else {
  81         $tooltip_truename[$table['Name']] = $table['Name'];
  82         $tooltip_aliasname[$table['Name']] = $table['Comment'];
  83     }
  84
  85     if (isset($table['Create_time']) && !empty($table['Create_time'])) {
  86         $tooltip_aliasname[$table['Name']] .= ', ' . __('Creation')
  87              . ': ' . PMA_localisedDate(strtotime($table['Create_time']));
  88     }
  89
  90     if (! empty($table['Update_time'])) {
  91         $tooltip_aliasname[$table['Name']] .= ', ' . __('Last update')
  92              . ': ' . PMA_localisedDate(strtotime($table['Update_time']));
  93     }
  94
  95     if (! empty($table['Check_time'])) {
  96         $tooltip_aliasname[$table['Name']] .= ', ' . __('Last check')
  97              . ': ' . PMA_localisedDate(strtotime($table['Check_time']));
  98     }
  99 }
 100
 101 PMA_checkParameters(array('db'));
 102
 103 /**
 104  * @global bool whether to display extended stats
 105  */
 106 $is_show_stats = $cfg['ShowStats'];
 107
 108 /**
 109  * @global bool whether selected db is information_schema
 110  */
 111 $db_is_information_schema = false;
 112
 113 if ($db == 'information_schema') {
 114     $is_show_stats = false;
 115     $db_is_information_schema = true;
 116 }
 117
 118 /**
 119  * @global array information about tables in db
 120  */
 121 $tables = array();
 122
 123 // When used in Nested table group mode, only show tables matching the given groupname
 124 if (PMA_isValid($tbl_group) && !$cfg['ShowTooltipAliasTB']) {
 125     $tbl_group_sql = ' LIKE "' . PMA_escape_mysql_wildcards($tbl_group) . '%"';
 126 } else {
 127     $tbl_group_sql = '';
 128 }
 129
 130 if ($cfg['ShowTooltip']) {
 131     $tooltip_truename = array();
 132     $tooltip_aliasname = array();
 133 }
 134
 135 // Special speedup for newer MySQL Versions (in 4.0 format changed)
 136 if (true === $cfg['SkipLockedTables']) {
 137     $db_info_result = PMA_DBI_query('SHOW OPEN TABLES FROM ' . PMA_backquote($db) . ';');
 138
 139     // Blending out tables in use
 140     if ($db_info_result && PMA_DBI_num_rows($db_info_result) > 0) {
 141         while ($tmp = PMA_DBI_fetch_row($db_info_result)) {
 142             // if in use memorize tablename
 143             if (preg_match('@in_use=[1-9]+@i', $tmp[1])) {
 144                 $sot_cache[$tmp[0]] = true;
 145             }
 146         }
 147         PMA_DBI_free_result($db_info_result);
 148
 149         if (isset($sot_cache)) {
 150             $db_info_result = PMA_DBI_query(
 151                 'SHOW TABLES FROM ' . PMA_backquote($db) . $tbl_group_sql . ';',
 152                 null, PMA_DBI_QUERY_STORE);
 153             if ($db_info_result && PMA_DBI_num_rows($db_info_result) > 0) {
 154                 while ($tmp = PMA_DBI_fetch_row($db_info_result)) {
 155                     if (! isset($sot_cache[$tmp[0]])) {
 156                         $sts_result  = PMA_DBI_query(
 157                             'SHOW TABLE STATUS FROM ' . PMA_backquote($db)
 158                              . ' LIKE \'' . addslashes($tmp[0]) . '\';');
 159                         $sts_tmp     = PMA_DBI_fetch_assoc($sts_result);
 160                         PMA_DBI_free_result($sts_result);
 161                         unset($sts_result);
 162
 163                         if (! isset($sts_tmp['Type']) && isset($sts_tmp['Engine'])) {
 164                             $sts_tmp['Type'] =& $sts_tmp['Engine'];
 165                         }
 166
 167                         if (!empty($tbl_group) && $cfg['ShowTooltipAliasTB']
 168                          && !preg_match('@' . preg_quote($tbl_group, '@') . '@i', $sts_tmp['Comment'])) {
 169                             continue;
 170                         }
 171
 172                         if ($cfg['ShowTooltip']) {
 173                             PMA_fillTooltip($tooltip_truename, $tooltip_aliasname, $sts_tmp);
 174                         }
 175
 176                         $tables[$sts_tmp['Name']]    = $sts_tmp;
 177                     } else { // table in use
 178                         $tables[$tmp[0]]    = array('Name' => $tmp[0]);
 179                     }
 180                 }
 181                 if ($GLOBALS['cfg']['NaturalOrder']) {
 182                     uksort($tables, 'strnatcasecmp');
 183                 }
 184
 185                 $sot_ready = true;
 186             } elseif ($db_info_result) {
 187                 PMA_DBI_free_result($db_info_result);
 188             }
 189             unset($sot_cache);
 190         }
 191         unset($tmp);
 192     } elseif ($db_info_result) {
 193         PMA_DBI_free_result($db_info_result);
 194     }
 195 }
 196
 197 if (! isset($sot_ready)) {
 198
 199     // Set some sorting defaults
 200     $sort = 'Name';
 201     $sort_order = 'ASC';
 202
 203     if (isset($_REQUEST['sort'])) {
 204         $sortable_name_mappings = array(
 205             'table'     => 'Name',
 206             'records'   => 'Rows',
 207             'type'      => 'Engine',
 208             'collation' => 'Collation',
 209             'size'      => 'Data_length',
 210             'overhead'  => 'Data_free'
 211         );
 212
 213         // Make sure the sort type is implemented
 214         if (isset($sortable_name_mappings[$_REQUEST['sort']])) {
 215             $sort = $sortable_name_mappings[$_REQUEST['sort']];
 216             if ($_REQUEST['sort_order'] == 'DESC') {
 217                 $sort_order = 'DESC';
 218             }
 219         }
 220     }
 221
 222     if (! empty($tbl_group) && ! $cfg['ShowTooltipAliasTB']) {
 223         // only tables for selected group
 224         $tables = PMA_DBI_get_tables_full($db, $tbl_group, true, null, 0, false, $sort, $sort_order);
 225     } elseif (! empty($tbl_group) && $cfg['ShowTooltipAliasTB']) {
 226         // only tables for selected group,
 227         // but grouping is done on comment ...
 228         $tables = PMA_DBI_get_tables_full($db, $tbl_group, 'comment', null, 0, false, $sort, $sort_order);
 229     } else {
 230         // all tables in db
 231         // - get the total number of tables
 232         //  (needed for proper working of the MaxTableList feature)
 233         $tables = PMA_DBI_get_tables($db);
 234         $total_num_tables = count($tables);
 235         if (isset($sub_part) && $sub_part == '_export') {
 236             // (don't fetch only a subset if we are coming from db_export.php,
 237             // because I think it's too risky to display only a subset of the
 238             // table names when exporting a db)
 239             /**
 240              *
 241              * @todo Page selector for table names?
 242              */
 243             $tables = PMA_DBI_get_tables_full($db, false, false, null, 0, false, $sort, $sort_order);
 244         } else {
 245             // fetch the details for a possible limited subset
 246             $tables = PMA_DBI_get_tables_full($db, false, false, null, $pos, true, $sort, $sort_order);
 247         }
 248     }
 249
 250     if ($cfg['ShowTooltip']) {
 251         foreach ($tables as $each_table) {
 252             PMA_fillTooltip($tooltip_truename, $tooltip_aliasname, $each_table);
 253         }
 254     }
 255 }
 256
 257 /**
 258  * @global int count of tables in db
 259  */
 260 $num_tables = count($tables);
 261 //  (needed for proper working of the MaxTableList feature)
 262 if (! isset($total_num_tables)) {
 263     $total_num_tables = $num_tables;
 264 }
 265
 266 /**
 267  * cleanup
 268  */
 269 unset($each_table, $tbl_group_sql, $db_info_result);
 270
 271 /**
 272  * Displays top menu links
 273  * If in an Ajax request, we do not need to show this
 274  */
 275 if($GLOBALS['is_ajax_request'] != true) {
 276     require './libraries/db_links.inc.php';
 277 }
 278 ?>