libraries/tbl_info.inc.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  *
   5  * @version $Id$
   6  */
   7
   8 /**
   9  *
  10  */
  11 require_once './libraries/Table.class.php';
  12
  13 /**
  14  * extracts table properties from create statement
  15  *
  16  * @todo this should be recoded as functions,
  17  * to avoid messing with global variables
  18  */
  19
  20 /**
  21  * requirements
  22  */
  23 require_once './libraries/common.inc.php';
  24
  25 // Check parameters
  26 PMA_checkParameters(array('db', 'table'));
  27
  28 /**
  29  * Defining global variables, in case this script is included by a function.
  30  * This is necessary because this script can be included by libraries/header.inc.php.
  31  */
  32 global $showtable, $tbl_is_view, $tbl_type, $show_comment, $tbl_collation,
  33        $table_info_num_rows, $auto_increment;
  34
  35 /**
  36  * Gets table informations
  37  */
  38 // Seems we need to do this in MySQL 5.0.2,
  39 // otherwise error #1046, no database selected
  40 PMA_DBI_select_db($GLOBALS['db']);
  41
  42 // The 'show table' statement works correct since 3.23.03
  43 $table_info_result   = PMA_DBI_query(
  44     'SHOW TABLE STATUS LIKE \'' . PMA_sqlAddslashes($GLOBALS['table'], true) . '\';',
  45     null, PMA_DBI_QUERY_STORE);
  46
  47 // need this test because when we are creating a table, we get 0 rows
  48 // from the SHOW TABLE query
  49 // and we don't want to mess up the $tbl_type coming from the form
  50
  51 if ($table_info_result && PMA_DBI_num_rows($table_info_result) > 0) {
  52     $showtable           = PMA_DBI_fetch_assoc($table_info_result);
  53     PMA_DBI_free_result($table_info_result);
  54     unset($table_info_result);
  55
  56     if (!isset($showtable['Type']) && isset($showtable['Engine'])) {
  57         $showtable['Type'] =& $showtable['Engine'];
  58     }
  59     if (PMA_Table::isView($GLOBALS['db'], $GLOBALS['table'])) {
  60         $tbl_is_view     = true;
  61         $tbl_type        = $GLOBALS['strView'];
  62         $show_comment    = null;
  63     } else {
  64         $tbl_is_view     = false;
  65         $tbl_type        = isset($showtable['Type'])
  66             ? strtoupper($showtable['Type'])
  67             : '';
  68         // a new comment could be coming from tbl_operations.php
  69         // and we want to show it in the header
  70         if (isset($submitcomment) && isset($comment)) {
  71             $show_comment = $comment;
  72         } else {
  73             $show_comment    = isset($showtable['Comment'])
  74                 ? $showtable['Comment']
  75                 : '';
  76         }
  77     }
  78     $tbl_collation       = empty($showtable['Collation'])
  79         ? ''
  80         : $showtable['Collation'];
  81
  82     if (null === $showtable['Rows']) {
  83         $showtable['Rows']   = PMA_Table::countRecords($GLOBALS['db'],
  84             $showtable['Name'], true, true);
  85     }
  86     $table_info_num_rows = isset($showtable['Rows']) ? $showtable['Rows'] : 0;
  87     $auto_increment      = isset($showtable['Auto_increment'])
  88         ? $showtable['Auto_increment']
  89         : '';
  90
  91     $create_options      = isset($showtable['Create_options'])
  92         ? explode(' ', $showtable['Create_options'])
  93         : array();
  94
  95     // export create options by its name as variables into gloabel namespace
  96     // f.e. pack_keys=1 becomes available as $pack_keys with value of '1'
  97     unset($pack_keys);
  98     foreach ($create_options as $each_create_option) {
  99         $each_create_option = explode('=', $each_create_option);
 100         if (isset($each_create_option[1])) {
 101             $$each_create_option[0]    = $each_create_option[1];
 102         }
 103     }
 104     // we need explicit DEFAULT value here (different from '0')
 105     $pack_keys = (!isset($pack_keys) || strlen($pack_keys) == 0) ? 'DEFAULT' : $pack_keys;
 106     unset($create_options, $each_create_option);
 107 } // end if
 108 ?>