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  * @version $Id$
  10  */
  11 if (! defined('PHPMYADMIN')) {
  12     exit;
  13 }
  14
  15 /**
  16  *
  17  */
  18 require_once './libraries/Table.class.php';
  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 // PMA_Table::sGetStatusInfo() does caching by default, but here
  43 // we force reading of the current table status
  44 // if $reread_info is true (for example, coming from tbl_operations.php
  45 // and we just changed the table's storage engine)
  46 $showtable = PMA_Table::sGetStatusInfo($GLOBALS['db'], $GLOBALS['table'], null, (isset($reread_info) && $reread_info ? true : false));
  47
  48 // need this test because when we are creating a table, we get 0 rows
  49 // from the SHOW TABLE query
  50 // and we don't want to mess up the $tbl_type coming from the form
  51
  52 if ($showtable) {
  53     if (PMA_Table::isView($GLOBALS['db'], $GLOBALS['table'])) {
  54         $tbl_is_view     = true;
  55         $tbl_type        = $GLOBALS['strView'];
  56         $show_comment    = null;
  57     } else {
  58         $tbl_is_view     = false;
  59         $tbl_type        = isset($showtable['Engine'])
  60             ? strtoupper($showtable['Engine'])
  61             : '';
  62         // a new comment could be coming from tbl_operations.php
  63         // and we want to show it in the header
  64         if (isset($submitcomment) && isset($comment)) {
  65             $show_comment = $comment;
  66         } else {
  67             $show_comment    = isset($showtable['Comment'])
  68                 ? $showtable['Comment']
  69                 : '';
  70         }
  71     }
  72     $tbl_collation       = empty($showtable['Collation'])
  73         ? ''
  74         : $showtable['Collation'];
  75
  76     if (null === $showtable['Rows']) {
  77         $showtable['Rows']   = PMA_Table::countRecords($GLOBALS['db'],
  78             $showtable['Name'], true, true);
  79     }
  80     $table_info_num_rows = isset($showtable['Rows']) ? $showtable['Rows'] : 0;
  81     $row_format = isset($showtable['Row_format']) ? $showtable['Row_format'] : '';
  82     $auto_increment      = isset($showtable['Auto_increment'])
  83         ? $showtable['Auto_increment']
  84         : '';
  85
  86     $create_options      = isset($showtable['Create_options'])
  87         ? explode(' ', $showtable['Create_options'])
  88         : array();
  89
  90     // export create options by its name as variables into global namespace
  91     // f.e. pack_keys=1 becomes available as $pack_keys with value of '1'
  92     unset($pack_keys);
  93     foreach ($create_options as $each_create_option) {
  94         $each_create_option = explode('=', $each_create_option);
  95         if (isset($each_create_option[1])) {
  96             $$each_create_option[0]    = $each_create_option[1];
  97         }
  98     }
  99     // we need explicit DEFAULT value here (different from '0')
 100     $pack_keys = (!isset($pack_keys) || strlen($pack_keys) == 0) ? 'DEFAULT' : $pack_keys;
 101     unset($create_options, $each_create_option);
 102 } // end if
 103 ?>