class.ilPageMultiLang.php

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<?php

class ilPageMultiLang
{
    protected ilDBInterface $db;
    protected string $parent_type;
    protected int $parent_id;
    protected string $master_lang;
    protected array $languages = array();
    protected bool $activated = false;

    public function __construct(
        string $a_parent_type,
        int $a_parent_id
    ) {
        global $DIC;

        $ilDB = $DIC->database();

        $this->db = $ilDB;

        $this->setParentType($a_parent_type);
        $this->setParentId($a_parent_id);

        if ($this->getParentType() == "") {
            throw new ilCOPageException("ilPageMultiLang: No parent type passed.");
        }

        if ($this->getParentId() <= 0) {
            throw new ilCOPageException("ilPageMultiLang: No parent ID passed.");
        }

        $this->read();
    }

    public function setParentType(string $a_val): void
    {
        $this->parent_type = $a_val;
    }

    public function getParentType(): string
    {
        return $this->parent_type;
    }

    public function setParentId(int $a_val): void
    {
        $this->parent_id = $a_val;
    }

    public function getParentId(): int
    {
        return $this->parent_id;
    }

    public function setMasterLanguage(string $a_val): void
    {
        $this->master_lang = $a_val;
    }

    public function getMasterLanguage(): string
    {
        return $this->master_lang;
    }

    public function setLanguages(array $a_val): void
    {
        $this->languages = $a_val;
    }

    public function getLanguages(): array
    {
        return $this->languages;
    }

    public function addLanguage(string $a_lang): void
    {
        if ($a_lang != "" && !in_array($a_lang, $this->languages)) {
            $this->languages[] = $a_lang;
        }
    }

    protected function setActivated(bool $a_val): void
    {
        $this->activated = $a_val;
    }

    public function getActivated(): bool
    {
        return $this->activated;
    }

    public function read(): void
    {
        $set = $this->db->query(
            "SELECT * FROM copg_multilang " .
            " WHERE parent_type = " . $this->db->quote($this->getParentType(), "text") .
            " AND parent_id = " . $this->db->quote($this->getParentId(), "integer")
        );
        if ($rec = $this->db->fetchAssoc($set)) {
            $this->setMasterLanguage($rec["master_lang"]);
            $this->setActivated(true);
        } else {
            $this->setActivated(false);
        }

        $this->setLanguages(array());
        $set = $this->db->query(
            "SELECT * FROM copg_multilang_lang " .
            " WHERE parent_type = " . $this->db->quote($this->getParentType(), "text") .
            " AND parent_id = " . $this->db->quote($this->getParentId(), "integer")
        );
        while ($rec = $this->db->fetchAssoc($set)) {
            $this->addLanguage($rec["lang"]);
        }
    }

    public function delete(): void
    {
        $this->db->manipulate(
            "DELETE FROM copg_multilang " .
            " WHERE parent_type = " . $this->db->quote($this->getParentType(), "text") .
            " AND parent_id = " . $this->db->quote($this->getParentId(), "integer")
        );
        $this->db->manipulate(
            "DELETE FROM copg_multilang_lang " .
            " WHERE parent_type = " . $this->db->quote($this->getParentType(), "text") .
            " AND parent_id = " . $this->db->quote($this->getParentId(), "integer")
        );
    }

    public function save(): void
    {
        $this->delete();

        $this->db->manipulate("INSERT INTO copg_multilang " .
            "(parent_type, parent_id, master_lang) VALUES (" .
            $this->db->quote($this->getParentType(), "text") . "," .
            $this->db->quote($this->getParentId(), "integer") . "," .
            $this->db->quote($this->getMasterLanguage(), "text") .
            ")");

        foreach ($this->getLanguages() as $lang) {
            $this->db->manipulate("INSERT INTO copg_multilang_lang " .
                "(parent_type, parent_id, lang) VALUES (" .
                $this->db->quote($this->getParentType(), "text") . "," .
                $this->db->quote($this->getParentId(), "integer") . "," .
                $this->db->quote($lang, "text") .
                ")");
        }
    }

    public function copy(
        string $a_target_parent_type,
        int $a_target_parent_id
    ): ?ilPageMultiLang {
        if ($this->getActivated()) {
            $target_ml = new ilPageMultiLang($a_target_parent_type, $a_target_parent_id);
            $target_ml->setMasterLanguage($this->getMasterLanguage());
            $target_ml->setLanguages($this->getLanguages());
            $target_ml->save();
            return $target_ml;
        }

        return null;
    }


    public function getEffectiveLang(string $a_lang): string
    {
        if ($this->getActivated() &&
            in_array($a_lang, $this->getLanguages()) &&
            ilPageObject::_exists($this->getParentType(), $this->getParentId(), $a_lang)) {
            return $a_lang;
        }
        return "-";
    }
}