libraries/db_table_exists.lib.php

   1 <?php
   2 /* $Id$ */
   3 // vim: expandtab sw=4 ts=4 sts=4:
   4
   5 /**
   6  * Ensure the database and the table exist (else move to the "parent" script)
   7  * and display headers
   8  */
   9 if (empty($is_db)) {
  10     if (isset($db) && strlen($db)) {
  11         $is_db = @PMA_DBI_select_db($db);
  12     } else {
  13         $is_db = false;
  14     }
  15
  16     if (! $is_db) {
  17         // not a valid db name -> back to the welcome page
  18         if (! defined('IS_TRANSFORMATION_WRAPPER')) {
  19             $url_params = array('reload' => 1);
  20             if (isset($message)) {
  21                 $url_params['message'] = $message;
  22             }
  23             PMA_sendHeaderLocation(
  24                 $cfg['PmaAbsoluteUri'] . 'main.php'
  25                     . PMA_generate_common_url($url_params, '&'));
  26         }
  27         exit;
  28     }
  29 } // end if (ensures db exists)
  30
  31 if (empty($is_table) && !defined('PMA_SUBMIT_MULT')) {
  32     // Not a valid table name -> back to the db_details.php
  33     if (isset($table) && strlen($table)) {
  34         $_result = PMA_DBI_try_query(
  35             'SHOW TABLES LIKE \'' . PMA_sqlAddslashes($table, true) . '\';',
  36             null, PMA_DBI_QUERY_STORE);
  37         $is_table = @PMA_DBI_num_rows($_result);
  38         PMA_DBI_free_result($_result);
  39     } else {
  40         $is_table = false;
  41     }
  42
  43     if (! $is_table) {
  44         if (! defined('IS_TRANSFORMATION_WRAPPER')) {
  45             if (isset($table) && strlen($table)) {
  46                 // SHOW TABLES doesn't show temporary tables, so try select
  47                 // (as it can happen just in case temporary table, it should be
  48                 // fast):
  49
  50                 // @todo should this check really only happen if IS_TRANSFORMATION_WRAPPER?
  51                 $_result = PMA_DBI_try_query(
  52                     'SELECT COUNT(*) FROM `' . PMA_sqlAddslashes($table, true) . '`;',
  53                     null, PMA_DBI_QUERY_STORE);
  54                 $is_table = ($_result && @PMA_DBI_num_rows($_result));
  55                 PMA_DBI_free_result($_result);
  56             }
  57
  58             if (! $is_table) {
  59                 $url_params = array('reload' => 1, 'db' => $db);
  60                 if (isset($message)) {
  61                     $url_params['message'] = $message;
  62                 }
  63                 PMA_sendHeaderLocation(
  64                     $cfg['PmaAbsoluteUri'] . 'db_details.php'
  65                         . PMA_generate_common_url($url_params, '&'));
  66             }
  67         }
  68
  69         if (! $is_table) {
  70             exit;
  71         }
  72     }
  73 } // end if (ensures table exists)
  74 ?>