Using form information for validation

[Alex Leverington]

---------------------- multipart/mixed attachment

Ok...I'm trying to setup the ticket mdify page in whups so that when you input a
user, there is a drop down menu that lets you select whether you are picking a
username or a user email address. I have _that_ part done. Now, what I'm having
a problem with is that I need the validation of the information to have access
to the value of the usertype selected from the dropdown box.

Search.php:Line 121 (I think, i've changed stuff) says:

$var3 = new Variable('Assignee', 'assignee', getUserType(), true);

This means that the Assignee is verifified via getUserType().

Eventually, that leads to the UserType class defined in Forms.php. The
validation is as below:

    function isValid(&$vars, $value, &$message) {
        $uid = $this->backend->getUserFromEmail($value);

        if (!isset($uid)) {
            $message = "no such user " . htmlspecialchars($value);
            return false;
        }

Which is ok if the person enters an email address. It's not ok if a person
enters a username. So, now I want to change that to something like:

    function isValid(&$vars, $values, &$message) {
        if($values['usertype']=='1')
        $uid = $this->backend->getUserFromEmail($values['input']);
        if($values['usertype']=='2')
        $uid = $this->backend->getUserFromName($values['input']);

        if (!isset($uid)) {
            $message = "no such user " . htmlspecialchars($value);
            return false;
        }

In essence, the problem is that I don't know how to get the $backend (up above)
to use other information from the form for validation. Any ideas?

Attached is a diff of where I'm at.

-Alex

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