pmd_relation_upd.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  *
   5  * @package PhpMyAdmin-Designer
   6  */
   7
   8 /**
   9  *
  10  */
  11 require_once './libraries/common.inc.php';
  12
  13 PMA_Response::getInstance()->disable();
  14
  15 require_once 'libraries/pmd_common.php';
  16 extract($_POST, EXTR_SKIP);
  17 extract($_GET, EXTR_SKIP);
  18 $die_save_pos = 0;
  19 require_once 'pmd_save_pos.php';
  20 list($DB1, $T1) = explode(".", $T1);
  21 list($DB2, $T2) = explode(".", $T2);
  22
  23 $tables = PMA_DBI_get_tables_full($db, $T1);
  24 $type_T1 = strtoupper($tables[$T1]['ENGINE']);
  25 $tables = PMA_DBI_get_tables_full($db, $T2);
  26 $type_T2 = strtoupper($tables[$T2]['ENGINE']);
  27
  28 $try_to_delete_internal_relation = false;
  29
  30 if (PMA_Util::isForeignKeySupported($type_T1)
  31     && PMA_Util::isForeignKeySupported($type_T2)
  32     && $type_T1 == $type_T2
  33 ) {
  34     // InnoDB
  35     $existrel_foreign = PMA_getForeigners($DB2, $T2, '', 'foreign');
  36
  37     if (isset($existrel_foreign[$F2]['constraint'])) {
  38         $upd_query  = 'ALTER TABLE ' . PMA_Util::backquote($DB2)
  39             . '.' . PMA_Util::backquote($T2) . ' DROP FOREIGN KEY '
  40             . PMA_Util::backquote($existrel_foreign[$F2]['constraint'])
  41             . ';';
  42         $upd_rs     = PMA_DBI_query($upd_query);
  43     } else {
  44         // there can be an internal relation even if InnoDB
  45         $try_to_delete_internal_relation = true;
  46     }
  47 } else {
  48     $try_to_delete_internal_relation = true;
  49 }
  50 if ($try_to_delete_internal_relation) {
  51     // internal relations
  52     PMA_queryAsControlUser(
  53         'DELETE FROM '
  54         . PMA_Util::backquote($GLOBALS['cfgRelation']['db']) . '.'
  55         . $cfg['Server']['relation'].' WHERE '
  56         . 'master_db = \'' . PMA_Util::sqlAddSlashes($DB2) . '\''
  57         . ' AND master_table = \'' . PMA_Util::sqlAddSlashes($T2) . '\''
  58         . ' AND master_field = \'' . PMA_Util::sqlAddSlashes($F2) . '\''
  59         . ' AND foreign_db = \'' . PMA_Util::sqlAddSlashes($DB1) . '\''
  60         . ' AND foreign_table = \'' . PMA_Util::sqlAddSlashes($T1) . '\''
  61         . ' AND foreign_field = \'' . PMA_Util::sqlAddSlashes($F1) . '\'',
  62         false,
  63         PMA_DBI_QUERY_STORE
  64     );
  65 }
  66 PMD_return_upd(1, __('Relation deleted'));
  67
  68 function PMD_return_upd($b, $ret)
  69 {
  70     global $K;
  71     header("Content-Type: text/xml; charset=utf-8");
  72     header("Cache-Control: no-cache");
  73     die('<root act="relation_upd" return="'.$ret.'" b="'.$b.'" K="'.$K.'"></root>');
  74 }
  75 ?>