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