libraries/db_table_exists.lib.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * Ensure the database and the table exist (else move to the "parent" script)
   5  * and display headers
   6  *
   7  * @version $Id$
   8  */
   9
  10 /**
  11  *
  12  */
  13 if (empty($is_db)) {
  14     if (strlen($db)) {
  15         $is_db = @PMA_DBI_select_db($db);
  16     } else {
  17         $is_db = false;
  18     }
  19
  20     if (! $is_db) {
  21         // not a valid db name -> back to the welcome page
  22         if (! defined('IS_TRANSFORMATION_WRAPPER')) {
  23             $url_params = array('reload' => 1);
  24             if (isset($message)) {
  25                 $url_params['message'] = $message;
  26             }
  27             if (! empty($sql_query)) {
  28                 $url_params['sql_query'] = $sql_query;
  29             }
  30             if (isset($show_as_php)) {
  31                 $url_params['show_as_php'] = $show_as_php;
  32             }
  33             PMA_sendHeaderLocation(
  34                 $cfg['PmaAbsoluteUri'] . 'main.php'
  35                     . PMA_generate_common_url($url_params, '&'));
  36         }
  37         exit;
  38     }
  39 } // end if (ensures db exists)
  40
  41 if (empty($is_table) && !defined('PMA_SUBMIT_MULT')) {
  42     // Not a valid table name -> back to the db_sql.php
  43     if (strlen($table)) {
  44         $_result = PMA_DBI_try_query(
  45             'SHOW TABLES LIKE \'' . PMA_sqlAddslashes($table, true) . '\';',
  46             null, PMA_DBI_QUERY_STORE);
  47         $is_table = @PMA_DBI_num_rows($_result);
  48         PMA_DBI_free_result($_result);
  49     } else {
  50         $is_table = false;
  51     }
  52
  53     if (! $is_table) {
  54         if (! defined('IS_TRANSFORMATION_WRAPPER')) {
  55             if (strlen($table)) {
  56                 // SHOW TABLES doesn't show temporary tables, so try select
  57                 // (as it can happen just in case temporary table, it should be
  58                 // fast):
  59
  60                 /**
  61                  * @todo should this check really only happen if IS_TRANSFORMATION_WRAPPER?
  62                  */
  63                 $_result = PMA_DBI_try_query(
  64                     'SELECT COUNT(*) FROM `' . PMA_sqlAddslashes($table, true) . '`;',
  65                     null, PMA_DBI_QUERY_STORE);
  66                 $is_table = ($_result && @PMA_DBI_num_rows($_result));
  67                 PMA_DBI_free_result($_result);
  68             }
  69
  70             if (! $is_table) {
  71                 $url_params = array('reload' => 1, 'db' => $db);
  72                 if (isset($message)) {
  73                     $url_params['message'] = $message;
  74                 }
  75                 if (! empty($sql_query)) {
  76                     $url_params['sql_query'] = $sql_query;
  77                 }
  78                 if (isset($display_query)) {
  79                     $url_params['display_query'] = $display_query;
  80                 }
  81                 PMA_sendHeaderLocation(
  82                     $cfg['PmaAbsoluteUri'] . 'db_sql.php'
  83                         . PMA_generate_common_url($url_params, '&'));
  84             }
  85         }
  86
  87         if (! $is_table) {
  88             exit;
  89         }
  90     }
  91 } // end if (ensures table exists)
  92 ?>