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   1  /* $Id: indexes.js 7886 2005-11-23 19:10:30Z nijel $ */
   2  
   3  
   4  /**
   5   * Ensures a value submitted in a form is numeric and is in a range
   6   *
   7   * @param   object   the form
   8   * @param   string   the name of the form field to check
   9   * @param   integer  the minimum authorized value
  10   * @param   integer  the maximum authorized value
  11   *
  12   * @return  boolean  whether a valid number has been submitted or not
  13   */
  14  function checkFormElementInRange(theForm, theFieldName, message, min, max)
  15  {
  16      var theField         = theForm.elements[theFieldName];
  17      var val              = parseInt(theField.value);
  18  
  19      if (typeof(min) == 'undefined') {
  20          min = 0;
  21      }
  22      if (typeof(max) == 'undefined') {
  23          max = Number.MAX_VALUE;
  24      }
  25  
  26      // It's not a number
  27      if (isNaN(val)) {
  28          theField.select();
  29          alert(errorMsg1);
  30          theField.focus();
  31          return false;
  32      }
  33      // It's a number but it is not between min and max
  34      else if (val < min || val > max) {
  35          theField.select();
  36          alert(message.replace('%d', val));
  37          theField.focus();
  38          return false;
  39      }
  40      // It's a valid number
  41      else {
  42          theField.value = val;
  43      }
  44  
  45      return true;
  46  } // end of the 'checkFormElementInRange()' function
  47  
  48  
  49  /**
  50   * Ensures indexes names are valid according to their type and, for a primary
  51   * key, lock index name to 'PRIMARY'
  52   *
  53   * @return  boolean  false if there is no index form, true else
  54   */
  55  function checkIndexName()
  56  {
  57      if (typeof(document.forms['index_frm']) == 'undefined') {
  58          return false;
  59      }
  60  
  61      // Gets the elements pointers
  62      var the_idx_name = document.forms['index_frm'].elements['index'];
  63      var the_idx_type = document.forms['index_frm'].elements['index_type'];
  64  
  65      // Index is a primary key
  66      if (the_idx_type.options[0].value == 'PRIMARY' && the_idx_type.options[0].selected) {
  67          document.forms['index_frm'].elements['index'].value = 'PRIMARY';
  68          if (typeof(the_idx_name.disabled) != 'undefined') {
  69              document.forms['index_frm'].elements['index'].disabled = true;
  70          }
  71      }
  72  
  73      // Other cases
  74      else {
  75          if (the_idx_name.value == 'PRIMARY') {
  76              document.forms['index_frm'].elements['index'].value = '';
  77          }
  78          if (typeof(the_idx_name.disabled) != 'undefined') {
  79              document.forms['index_frm'].elements['index'].disabled = false;
  80          }
  81      }
  82  
  83      return true;
  84  } // end of the 'checkIndexName()' function
  85  
  86  
  87  onload = checkIndexName;