js/indexes.js

   1 /* vim: set expandtab sw=4 ts=4 sts=4: */
   2 /**
   3  * function used for index manipulation pages
   4  *
   5  * @version $Id$
   6  */
   7
   8 /**
   9  * Ensures a value submitted in a form is numeric and is in a range
  10  *
  11  * @param   object   the form
  12  * @param   string   the name of the form field to check
  13  * @param   integer  the minimum authorized value
  14  * @param   integer  the maximum authorized value
  15  *
  16  * @return  boolean  whether a valid number has been submitted or not
  17  */
  18 function checkFormElementInRange(theForm, theFieldName, message, min, max)
  19 {
  20     var theField         = theForm.elements[theFieldName];
  21     var val              = parseInt(theField.value);
  22
  23     if (typeof(min) == 'undefined') {
  24         min = 0;
  25     }
  26     if (typeof(max) == 'undefined') {
  27         max = Number.MAX_VALUE;
  28     }
  29
  30     // It's not a number
  31     if (isNaN(val)) {
  32         theField.select();
  33         alert(PMA_messages['strNotNumber']);
  34         theField.focus();
  35         return false;
  36     }
  37     // It's a number but it is not between min and max
  38     else if (val < min || val > max) {
  39         theField.select();
  40         alert(message.replace('%d', val));
  41         theField.focus();
  42         return false;
  43     }
  44     // It's a valid number
  45     else {
  46         theField.value = val;
  47     }
  48
  49     return true;
  50 } // end of the 'checkFormElementInRange()' function
  51
  52
  53 /**
  54  * Ensures indexes names are valid according to their type and, for a primary
  55  * key, lock index name to 'PRIMARY'
  56  *
  57  * @return  boolean  false if there is no index form, true else
  58  */
  59 function checkIndexName()
  60 {
  61     if (typeof(document.forms['index_frm']) == 'undefined') {
  62         return false;
  63     }
  64
  65     // Gets the elements pointers
  66     var the_idx_name = document.forms['index_frm'].elements['index'];
  67     var the_idx_type = document.forms['index_frm'].elements['index_type'];
  68
  69     // Index is a primary key
  70     if (the_idx_type.options[0].value == 'PRIMARY' && the_idx_type.options[0].selected) {
  71         document.forms['index_frm'].elements['index'].value = 'PRIMARY';
  72         if (typeof(the_idx_name.disabled) != 'undefined') {
  73             document.forms['index_frm'].elements['index'].disabled = true;
  74         }
  75     }
  76
  77     // Other cases
  78     else {
  79         if (the_idx_name.value == 'PRIMARY') {
  80             document.forms['index_frm'].elements['index'].value = '';
  81         }
  82         if (typeof(the_idx_name.disabled) != 'undefined') {
  83             document.forms['index_frm'].elements['index'].disabled = false;
  84         }
  85     }
  86
  87     return true;
  88 } // end of the 'checkIndexName()' function
  89
  90
  91 onload = checkIndexName;