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pma/libraries/tbl_info.inc.php 3.58 KB
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  <?php
  /* vim: set expandtab sw=4 ts=4 sts=4: */
  /**
   * extracts table properties from create statement
   *
   * @todo should be handled by class Table
   * @todo this should be recoded as functions, to avoid messing with global variables
   *
   * @package PhpMyAdmin
   */
  if (! defined('PHPMYADMIN')) {
      exit;
  }
  
  /**
   * requirements
   */
  require_once './libraries/common.inc.php';
  
  // Check parameters
  PMA_checkParameters(array('db', 'table'));
  
  /**
   * Defining global variables, in case this script is included by a function.
   * This is necessary because this script can be included by libraries/header.inc.php.
   */
  global $showtable, $tbl_is_view, $tbl_type, $show_comment, $tbl_collation,
         $table_info_num_rows, $auto_increment;
  
  /**
   * Gets table informations
   */
  // Seems we need to do this in MySQL 5.0.2,
  // otherwise error #1046, no database selected
  PMA_DBI_select_db($GLOBALS['db']);
  
  
  /**
   * Holds information about the current table
   *
   * @todo replace this by PMA_Table
   * @global array $GLOBALS['showtable']
   * @name $showtable
   */
  $GLOBALS['showtable'] = array();
  
  // PMA_Table::sGetStatusInfo() does caching by default, but here
  // we force reading of the current table status
  // if $reread_info is true (for example, coming from tbl_operations.php
  // and we just changed the table's storage engine)
  $GLOBALS['showtable'] = PMA_Table::sGetStatusInfo($GLOBALS['db'], $GLOBALS['table'], null, (isset($reread_info) && $reread_info ? true : false));
  
  // need this test because when we are creating a table, we get 0 rows
  // from the SHOW TABLE query
  // and we don't want to mess up the $tbl_type coming from the form
  
  if ($showtable) {
      if (PMA_Table::isView($GLOBALS['db'], $GLOBALS['table'])) {
          $tbl_is_view     = true;
          $tbl_type        = __('View');
          $show_comment    = null;
      } else {
          $tbl_is_view     = false;
          $tbl_type        = isset($showtable['Engine'])
              ? strtoupper($showtable['Engine'])
              : '';
          // a new comment could be coming from tbl_operations.php
          // and we want to show it in the header
          if (isset($submitcomment) && isset($comment)) {
              $show_comment = $comment;
          } else {
              $show_comment    = isset($showtable['Comment'])
                  ? $showtable['Comment']
                  : '';
          }
      }
      $tbl_collation       = empty($showtable['Collation'])
          ? ''
          : $showtable['Collation'];
  
      if (null === $showtable['Rows']) {
          $showtable['Rows']   = PMA_Table::countRecords($GLOBALS['db'],
              $showtable['Name'], true);
      }
      $table_info_num_rows = isset($showtable['Rows']) ? $showtable['Rows'] : 0;
      $row_format = isset($showtable['Row_format']) ? $showtable['Row_format'] : '';
      $auto_increment      = isset($showtable['Auto_increment'])
          ? $showtable['Auto_increment']
          : '';
  
      $create_options      = isset($showtable['Create_options'])
          ? explode(' ', $showtable['Create_options'])
          : array();
  
      // export create options by its name as variables into global namespace
      // f.e. pack_keys=1 becomes available as $pack_keys with value of '1'
      unset($pack_keys);
      foreach ($create_options as $each_create_option) {
          $each_create_option = explode('=', $each_create_option);
          if (isset($each_create_option[1])) {
              $$each_create_option[0]    = $each_create_option[1];
          }
      }
      // we need explicit DEFAULT value here (different from '0')
      $pack_keys = (! isset($pack_keys) || strlen($pack_keys) == 0) ? 'DEFAULT' : $pack_keys;
      unset($create_options, $each_create_option);
  } // end if
  ?>