Source for file WAddFromListRepeatableComponentCollection.class.php

<?php
/**
 * @since Aug 1, 2005
 * @package polyphony.wizard.components
 * 
 * @copyright Copyright &copy; 2005, Middlebury College
 * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License (GPL)
 *
 * @version $Id: WAddFromListRepeatableComponentCollection.class.php,v 1.4 2007/09/19 14:04:51 adamfranco Exp $
 */ 
 
/**
 * This component allows for the creation of repeatable components or groups of
 * components. Only the newly added comonents are editable. Existing ones can only
 * be removed.
 * 
 * @since Aug 1, 2005
 * @package polyphony.wizard.components
 * 
 * @copyright Copyright &copy; 2005, Middlebury College
 * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License (GPL)
 *
 * @version $Id: WAddFromListRepeatableComponentCollection.class.php,v 1.4 2007/09/19 14:04:51 adamfranco Exp $
 */
 
class WAddFromListRepeatableComponentCollection
    extends WRepeatableComponentCollection 
{
    function WAddFromListRepeatableComponentCollection() {
        parent::WRepeatableComponentCollection();
        $this->_addButton = WChooseOptionButton::withLabel($this->_addLabel);
        $this->_addButton->setParent($this);
    }
    
    /**
     * Add an array of value collections for use when adding
     * 
     * @param string $name 
     * @param array $valueCollection 
     * @return void 
     * @access public
     * @since 11/1/05
     */
    function addOptionCollection ( $name, $valueCollection ) {
        $this->_addButton->addOptionValue($name, $valueCollection);
    }
    
        /**
     * Tells the wizard component to update itself - this may include getting
     * form post data or validation - whatever this particular component wants to
     * do every pageload.
     * @param string $fieldName The field name to use when outputting form data or
     *  similar parameters/information.
     * @access public
     * @return boolean - TRUE if everything is OK
     */
    function update ($fieldName) {
        $ok = true;
//        $this->_removeElements(array(2));
        // first update all our components in the collections
        $toRemove = array();
        foreach(array_keys($this->_collections) as $key) {
            foreach(array_keys($this->_collections[$key]) as $name) {
//                print "$name in $key is a ".gettype($this->_collections[$key][$name])."<br/>";
//                if (!is_object($this->_collections[$key][$name])) continue;
                if (!$this->_collections[$key][$name]->update($fieldName."_".$key."_".$name)) $ok = false;
            }
            if ($this->_collections[$key]["_remove"]->getAllValues()) $toRemove[] = $key;
        }
        $this->_removeElements($toRemove);
        
        // then, check if any "buttons" or anything were pressed to add/remove elements
        $this->_addButton->update($fieldName."_add");
        $addButtonValues = $this->_addButton->getAllValues();
        if ($addButtonValues['pressed']) {
//            print "adding element.<br/>";
            if (is_array($addButtonValues['option']))
                $this->addValueCollection($addButtonValues['option']);
            else
                $this->_addElement();
        }
        
        return $ok;
    }
}
?>