tbl_indexes.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * Displays index edit/creation form and handles it
   5  *
   6  * @package PhpMyAdmin
   7  */
   8
   9 /**
  10  * Gets some core libraries
  11  */
  12 require_once 'libraries/common.inc.php';
  13 require_once 'libraries/Index.class.php';
  14 require_once 'libraries/tbl_common.inc.php';
  15
  16 // Get fields and stores their name/type
  17 $fields = array();
  18 foreach ($GLOBALS['dbi']->getColumnsFull($db, $table) as $row) {
  19     if (preg_match('@^(set|enum)\((.+)\)$@i', $row['Type'], $tmp)) {
  20         $tmp[2] = substr(
  21             preg_replace('@([^,])\'\'@', '\\1\\\'', ',' . $tmp[2]), 1
  22         );
  23         $fields[$row['Field']] = $tmp[1] . '('
  24             . str_replace(',', ', ', $tmp[2]) . ')';
  25     } else {
  26         $fields[$row['Field']] = $row['Type'];
  27     }
  28 } // end while
  29
  30 // Prepares the form values
  31 if (isset($_REQUEST['index'])) {
  32     if (is_array($_REQUEST['index'])) {
  33         // coming already from form
  34         $index = new PMA_Index($_REQUEST['index']);
  35     } else {
  36         $index = PMA_Index::singleton($db, $table, $_REQUEST['index']);
  37     }
  38 } else {
  39     $index = new PMA_Index;
  40 }
  41
  42 /**
  43  * Process the data from the edit/create index form,
  44  * run the query to build the new index
  45  * and moves back to "tbl_sql.php"
  46  */
  47 if (isset($_REQUEST['do_save_data'])) {
  48     $error = false;
  49
  50     // $sql_query is the one displayed in the query box
  51     $sql_query = 'ALTER TABLE ' . PMA_Util::backquote($db)
  52         . '.' . PMA_Util::backquote($table);
  53
  54     // Drops the old index
  55     if (! empty($_REQUEST['old_index'])) {
  56         if ($_REQUEST['old_index'] == 'PRIMARY') {
  57             $sql_query .= ' DROP PRIMARY KEY,';
  58         } else {
  59             $sql_query .= ' DROP INDEX '
  60                 . PMA_Util::backquote($_REQUEST['old_index']) . ',';
  61         }
  62     } // end if
  63
  64     // Builds the new one
  65     switch ($index->getType()) {
  66     case 'PRIMARY':
  67         if ($index->getName() == '') {
  68             $index->setName('PRIMARY');
  69         } elseif ($index->getName() != 'PRIMARY') {
  70             $error = PMA_Message::error(
  71                 __('The name of the primary key must be "PRIMARY"!')
  72             );
  73         }
  74         $sql_query .= ' ADD PRIMARY KEY';
  75         break;
  76     case 'FULLTEXT':
  77     case 'UNIQUE':
  78     case 'INDEX':
  79     case 'SPATIAL':
  80         if ($index->getName() == 'PRIMARY') {
  81             $error = PMA_Message::error(__('Can\'t rename index to PRIMARY!'));
  82         }
  83         $sql_query .= ' ADD ' . $index->getType() . ' '
  84             . ($index->getName() ? PMA_Util::backquote($index->getName()) : '');
  85         break;
  86     } // end switch
  87
  88     $index_fields = array();
  89     foreach ($index->getColumns() as $key => $column) {
  90         $index_fields[$key] = PMA_Util::backquote($column->getName());
  91         if ($column->getSubPart()) {
  92             $index_fields[$key] .= '(' . $column->getSubPart() . ')';
  93         }
  94     } // end while
  95
  96     if (empty($index_fields)) {
  97         $error = PMA_Message::error(__('No index parts defined!'));
  98     } else {
  99         $sql_query .= ' (' . implode(', ', $index_fields) . ')';
 100     }
 101
 102     if (PMA_MYSQL_INT_VERSION > 50500) {
 103         $sql_query .= "COMMENT '"
 104             . PMA_Util::sqlAddSlashes($index->getComment())
 105             . "'";
 106     }
 107     $sql_query .= ';';
 108
 109     if (! $error) {
 110         $GLOBALS['dbi']->query($sql_query);
 111         $message = PMA_Message::success(
 112             __('Table %1$s has been altered successfully')
 113         );
 114         $message->addParam($table);
 115
 116         if ($GLOBALS['is_ajax_request'] == true) {
 117             $response = PMA_Response::getInstance();
 118             $response->addJSON('message', $message);
 119             $response->addJSON('index_table', PMA_Index::getView($table, $db));
 120             $response->addJSON(
 121                 'sql_query',
 122                 PMA_Util::getMessage(null, $sql_query)
 123             );
 124         } else {
 125             $active_page = 'tbl_structure.php';
 126             include 'tbl_structure.php';
 127         }
 128         exit;
 129     } else {
 130         if ($GLOBALS['is_ajax_request'] == true) {
 131             $response = PMA_Response::getInstance();
 132             $response->isSuccess(false);
 133             $response->addJSON('message', $error);
 134             exit;
 135         } else {
 136             $error->display();
 137         }
 138     }
 139 } // end builds the new index
 140
 141
 142 /**
 143  * Display the form to edit/create an index
 144  */
 145 require_once 'libraries/tbl_info.inc.php';
 146 require_once 'libraries/display_indexes.lib.php';
 147 ?>