class.ilPCSkills.php

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<?php

/* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */


require_once("./Services/COPage/classes/class.ilPageContent.php");

class ilPCSkills extends ilPageContent
{
    protected $user;

    public $dom;

    public function init()
    {
        global $DIC;

        $this->user = $DIC->user();
        $this->setType("skills");
    }

    public function setNode($a_node)
    {
        parent::setNode($a_node);               // this is the PageContent node
        $this->skill_node = $a_node->first_child();             // this is the skill node
    }

    public function create(&$a_pg_obj, $a_hier_id, $a_pc_id = "")
    {
        $this->node = $this->createPageContentNode();
        $a_pg_obj->insertContent($this, $a_hier_id, IL_INSERT_AFTER, $a_pc_id);
        $this->skill_node = $this->dom->create_element("Skills");
        $this->skill_node = $this->node->append_child($this->skill_node);
    }

    public function setData($a_skill_id)
    {
        $ilUser = $this->user;
        
        $this->skill_node->set_attribute("Id", $a_skill_id);
        $this->skill_node->set_attribute("User", $ilUser->getId());
    }

    public function getSkillId()
    {
        if (is_object($this->skill_node)) {
            return $this->skill_node->get_attribute("Id");
        }
    }
    
    public static function afterPageUpdate($a_page, DOMDocument $a_domdoc, $a_xml, $a_creation)
    {
        // pc skill
        self::saveSkillUsage($a_page, $a_domdoc);
    }
    
    public static function beforePageDelete($a_page)
    {
        require_once('Services/COPage/classes/class.ilPageContentUsage.php'); // Mantis #18636
        ilPageContentUsage::deleteAllUsages(
            "skmg",
            $a_page->getParentType() . ":pg",
            $a_page->getId(),
            false,
            $a_page->getLanguage()
        );
    }

    public static function afterPageHistoryEntry($a_page, DOMDocument $a_old_domdoc, $a_old_xml, $a_old_nr)
    {
        self::saveSkillUsage($a_page, $a_old_domdoc, $a_old_nr);
    }
    
    public static function saveSkillUsage($a_page, $a_domdoc, $a_old_nr = 0)
    {
        include_once("./Services/COPage/classes/class.ilPageContentUsage.php");
        $skl_ids = self::collectSkills($a_page, $a_domdoc);
        ilPageContentUsage::deleteAllUsages(
            "skmg",
            $a_page->getParentType() . ":pg",
            $a_page->getId(),
            $a_old_nr,
            $a_page->getLanguage()
        );
        foreach ($skl_ids as $skl_id) {
            if ((int) $skl_id["inst_id"] <= 0) {
                ilPageContentUsage::saveUsage(
                    "skmg",
                    $skl_id["id"],
                    $a_page->getParentType() . ":pg",
                    $a_page->getId(),
                    $a_old_nr,
                    $a_page->getLanguage()
                );
            }
        }
    }

    public static function collectSkills($a_page, $a_domdoc)
    {
        $xpath = new DOMXPath($a_domdoc);
        $nodes = $xpath->query('//Skills');

        $skl_ids = array();
        foreach ($nodes as $node) {
            $user = $node->getAttribute("User");
            $id = $node->getAttribute("Id");
            $inst_id = $node->getAttribute("InstId");
            $skl_ids[$user . ":" . $id . ":" . $inst_id] = array(
                "user" => $user, "id" => $id, "inst_id" => $inst_id);
        }

        return $skl_ids;
    }
}