<?php
class Plugg_User_Model_FriendHTMLQuickForm extends Plugg_User_Model_Base_FriendHTMLQuickForm
{
    protected function _onInit(array $params)
    {
        // things that should be applied to all forms should come here (e.g., add validators)

        // remove user id form element by default
        $this->removeElement('userid');
    }

    protected function _onEntity(Sabai_Model_Entity $entity)
    {
        // things that should be applied to a specific entity form should come here
    }

    protected function _onFillEntity(Sabai_Model_Entity $entity)
    {
        // things that should be applied to the entity after form submit should come here
    }
}