<?php
    
global $CONFIG;
    
function competencies_init() {
    extend_view('css', 'competencies/css');
}

function get_competencies() {
    // at the moment competencies are in competencies.xml file
    global $CONFIG;
    $filename = $CONFIG->wwwroot . "/mod/competencies/competencies.xml";
    $all_standards = array();
    $all_competencies = array();
    $doc = new DOMDocument("1.0", "UTF-8");
    $doc->load($filename);
    $standards = $doc->getElementsByTagName("competencystandard");
    foreach ($standards as $standard) {
        $ids = $standard->getElementsByTagName("id");
        $id = $ids->item(0)->nodeValue;
        $titles = $standard->getElementsByTagName("title");
        $title = $titles->item(0)->nodeValue;
        $all_standards[] = $id;
        $all_competencies[$id] = $title;
        // get standard competencies
        $competencies = $standard->getElementsByTagName("competency");
        foreach($competencies as $competency) {
            $cids = $competency->getElementsByTagName("id");
            $cid = $cids->item(0)->nodeValue;
            $ctitles = $competency->getElementsByTagName("title");
            $ctitle = $ctitles->item(0)->nodeValue;
            $all_competencies[$cid] = $ctitle;   
        }
    }
    return array($all_standards, $all_competencies);
}

function get_competency($id) {
    $all = get_competencies();
    return $all[1][$id];
}

function competencies_save($event, $object_type, $object) {
    if ($object instanceof ElggEntity) {
        $marker = get_input("competencies_marker");
        if ($marker == "on") {
            $competencies = get_input('competencies');
            if (empty($competencies)) $competencies = array();
            $object->competencies = $competencies;
        }
    }
}

register_elgg_event_handler('init','system','competencies_init');
register_elgg_event_handler('create', 'all', 'competencies_save');
register_elgg_event_handler('update', 'all', 'competencies_save');

?>