js/indexes.js

   1 /* vim: set expandtab sw=4 ts=4 sts=4: */
   2 /**
   3  * function used for index manipulation pages
   4  *
   5  */
   6
   7 /**
   8  * Ensures indexes names are valid according to their type and, for a primary
   9  * key, lock index name to 'PRIMARY'
  10  *
  11  * @return  boolean  false if there is no index form, true else
  12  */
  13 function checkIndexName()
  14 {
  15     if (typeof(document.forms['index_frm']) == 'undefined') {
  16         return false;
  17     }
  18
  19     // Gets the elements pointers
  20     var the_idx_name = document.forms['index_frm'].elements['index'];
  21     var the_idx_type = document.forms['index_frm'].elements['index_type'];
  22
  23     // Index is a primary key
  24     if (the_idx_type.options[0].value == 'PRIMARY' && the_idx_type.options[0].selected) {
  25         document.forms['index_frm'].elements['index'].value = 'PRIMARY';
  26         if (typeof(the_idx_name.disabled) != 'undefined') {
  27             document.forms['index_frm'].elements['index'].disabled = true;
  28         }
  29     }
  30
  31     // Other cases
  32     else {
  33         if (the_idx_name.value == 'PRIMARY') {
  34             document.forms['index_frm'].elements['index'].value = '';
  35         }
  36         if (typeof(the_idx_name.disabled) != 'undefined') {
  37             document.forms['index_frm'].elements['index'].disabled = false;
  38         }
  39     }
  40
  41     return true;
  42 } // end of the 'checkIndexName()' function
  43
  44
  45 onload = checkIndexName;