regards
-
Bayron

Please feel free to contact me directly should you want to see any of the code etc. I am running 2.9.3b – there are no javascript errors logged.

function is_valid_combination(value) {

  var checked_values = [];

  $('input[name="scope[]"]:checked').each(function(){
    checked_values.push($(this).val());
  });

  if (
    // return true only if first and last option are selected
    $(['0', '3']).not(checked_values).get().length == 0 &&
    $(checked_values).not(['0', '3']).get().length == 0
  ) return true;

  return false;

}

$form->add('label','label_scope','scope','Scope:');
$obj = & $form->add('checkboxes','scope[]',
  array(
    'v1',
    'v2',
    'v3',
    'v4'
  )
);
$obj->set_rule(array(
  'required'  =>  array('error', 'Error!'),
  'custom'    =>  array(
    'is_valid_combination',
    'error',
    'Error!'
  )
));

This custom validation function receives only one value (or so it appears to me):

function is_valid_combination(value) {
  // return false if the combination is not allowed, e.g., v1 and v3 only
  return true;
}

Now – how do I get in this JavaScript custom validation rule the actual checkboxes that were checked?

$obj->set_rule(
  'dependencies' => array(array(
    'my_checkboxes' => array('value_1', 'value_2'),
  ), 'mycallback'),
);