libraries/tbl_info.inc.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * extracts table properties from create statement
   5  *
   6  * @todo should be handled by class Table
   7  * @todo this should be recoded as functions, to avoid messing with global variables
   8  *
   9  * @package phpMyAdmin
  10  */
  11 if (! defined('PHPMYADMIN')) {
  12     exit;
  13 }
  14
  15 /**
  16  * requirements
  17  */
  18 require_once './libraries/common.inc.php';
  19
  20 // Check parameters
  21 PMA_checkParameters(array('db', 'table'));
  22
  23 /**
  24  * Defining global variables, in case this script is included by a function.
  25  * This is necessary because this script can be included by libraries/header.inc.php.
  26  */
  27 global $showtable, $tbl_is_view, $tbl_type, $show_comment, $tbl_collation,
  28        $table_info_num_rows, $auto_increment;
  29
  30 /**
  31  * Gets table informations
  32  */
  33 // Seems we need to do this in MySQL 5.0.2,
  34 // otherwise error #1046, no database selected
  35 PMA_DBI_select_db($GLOBALS['db']);
  36
  37
  38 /**
  39  * Holds information about the current table
  40  *
  41  * @todo replace this by PMA_Table
  42  * @global array $GLOBALS['showtable']
  43  * @name $showtable
  44  */
  45 $GLOBALS['showtable'] = array();
  46
  47 // PMA_Table::sGetStatusInfo() does caching by default, but here
  48 // we force reading of the current table status
  49 // if $reread_info is true (for example, coming from tbl_operations.php
  50 // and we just changed the table's storage engine)
  51 $GLOBALS['showtable'] = PMA_Table::sGetStatusInfo($GLOBALS['db'], $GLOBALS['table'], null, (isset($reread_info) && $reread_info ? true : false));
  52
  53 // need this test because when we are creating a table, we get 0 rows
  54 // from the SHOW TABLE query
  55 // and we don't want to mess up the $tbl_type coming from the form
  56
  57 if ($showtable) {
  58     if (PMA_Table::isView($GLOBALS['db'], $GLOBALS['table'])) {
  59         $tbl_is_view     = true;
  60         $tbl_type        = __('View');
  61         $show_comment    = null;
  62     } else {
  63         $tbl_is_view     = false;
  64         $tbl_type        = isset($showtable['Engine'])
  65             ? strtoupper($showtable['Engine'])
  66             : '';
  67         // a new comment could be coming from tbl_operations.php
  68         // and we want to show it in the header
  69         if (isset($submitcomment) && isset($comment)) {
  70             $show_comment = $comment;
  71         } else {
  72             $show_comment    = isset($showtable['Comment'])
  73                 ? $showtable['Comment']
  74                 : '';
  75         }
  76     }
  77     $tbl_collation       = empty($showtable['Collation'])
  78         ? ''
  79         : $showtable['Collation'];
  80
  81     if (null === $showtable['Rows']) {
  82         $showtable['Rows']   = PMA_Table::countRecords($GLOBALS['db'],
  83             $showtable['Name'], true);
  84     }
  85     $table_info_num_rows = isset($showtable['Rows']) ? $showtable['Rows'] : 0;
  86     $row_format = isset($showtable['Row_format']) ? $showtable['Row_format'] : '';
  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 global 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 ?>