Adding rules

Hi again

Does any one know how to add a rule to the date element that insures that is does not validate if the date is not complete.

This only insure that the date must be selected.

$form->addGroupRule('start_date', 'enter a date', 'required');

I want to be prepared incase some one just add a day and not a month or year for example.

Using addGroupRule() isn't right, although it might be obvious because of the grouped elements that are generated by the 'date' element.

http://pear.php.net/manual/en/package.html.html-quickform.intro-validation.php, first paragraph in the "Group validation" section:
"Groups of elements can be validated the same way other elements are, or use a more complex validation scheme. To validate a group as a whole, just use HTML_QuickForm::addRule(). The group elements' values will be passed to the validation function as an array."

=> addRule() should be used in your case