class.ilPCSkills.php

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<?php
 
class ilPCSkills extends ilPageContent
{
    protected ilObjUser $user;
 
    public function init(): void
    {
        global $DIC;
 
        $this->user = $DIC->user();
        $this->setType("skills");
    }
 
    public function create(
        ilPageObject $a_pg_obj,
        string $a_hier_id,
        string $a_pc_id = ""
    ): void {
        $this->createInitialChildNode($a_hier_id, $a_pc_id, "Skills");
    }
 
    public function setData(string $a_skill_id): void
    {
        $ilUser = $this->user;
        $this->getChildNode()->setAttribute("Id", $a_skill_id);
        $this->getChildNode()->setAttribute("User", $ilUser->getId());
    }
 
    public function getSkillId(): string
    {
        if (is_object($this->getChildNode())) {
            return $this->getChildNode()->getAttribute("Id");
        }
        return "";
    }
 
    public static function afterPageUpdate(
        ilPageObject $a_page,
        DOMDocument $a_domdoc,
        string $a_xml,
        bool $a_creation
    ): void {
        // pc skill
        self::saveSkillUsage($a_page, $a_domdoc);
    }
 
    public static function beforePageDelete(
        ilPageObject $a_page
    ): void {
        ilPageContentUsage::deleteAllUsages(
            "skmg",
            $a_page->getParentType() . ":pg",
            $a_page->getId(),
            0,
            $a_page->getLanguage()
        );
    }
 
    public static function afterPageHistoryEntry(
        ilPageObject $a_page,
        DOMDocument $a_old_domdoc,
        string $a_old_xml,
        int $a_old_nr
    ): void {
        self::saveSkillUsage($a_page, $a_old_domdoc, $a_old_nr);
    }
 
    public static function saveSkillUsage(
        ilPageObject $a_page,
        DOMDocument $a_domdoc,
        int $a_old_nr = 0
    ): void {
        $skl_ids = self::collectSkills($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(
        ilPageObject $a_page,
        DOMDocument $a_domdoc
    ): array {
        $xpath = new DOMXPath($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;
    }
 
    public static function deleteHistoryLowerEqualThan(
        string $parent_type,
        int $page_id,
        string $lang,
        int $delete_lower_than_nr
    ): void {
        global $DIC;
 
        $usage_repo = $DIC->copage()
                              ->internal()
                              ->repo()
                              ->usage();
 
        $usage_repo->deleteHistoryUsagesLowerEqualThan(
            "skmg",
            $parent_type . ":pg",
            $page_id,
            $delete_lower_than_nr,
            $lang
        );
    }
}