trait.ilObjFileMetadata.php

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<?php
 
trait ilObjFileMetadata
{
    protected ?bool $no_meta_data_creation = null;
 
    protected function updateFileData(): void
    {
        global $DIC;
        $check_existing = $DIC->database()->queryF(
            'SELECT file_id FROM file_data WHERE file_id = %s',
            ['integer'],
            [$this->getId()]
        );
        if ($check_existing->numRows() === 0) {
            $DIC->database()->insert('file_data', $this->getArrayForDatabase());
        } else {
            $DIC->database()->update(
                'file_data',
                $this->getArrayForDatabase(),
                ['file_id' => ['integer', $this->getId()]]
            );
        }
    }
 
    public function createProperties(bool $a_upload = false): void
    {
        global $DIC;
 
        // New Item
        if (isset($this->ref_id)) {
            $default_visibility = ilNewsItem::_getDefaultVisibilityForRefId($this->ref_id);
            if ($default_visibility === "public") {
                ilBlockSetting::_write("news", "public_notifications", 1, 0, $this->getId());
            }
        }
        $this->updateFileData();
 
        // no meta data handling for file list files
        if ($this->getMode() !== self::MODE_FILELIST) {
            $this->createMetaData();
        }
    }
 
    public function setNoMetaDataCreation(bool $a_status)
    {
        $this->no_meta_data_creation = $a_status;
    }
 
    protected function beforeCreateMetaData(): bool
    {
        return !(bool) $this->no_meta_data_creation;
    }
 
    protected function beforeUpdateMetaData(): bool
    {
        return !(bool) $this->no_meta_data_creation;
    }
 
    protected function doCreateMetaData(): void
    {
        return;   // add technical section with file size and format
        $md_obj = new ilMD($this->getId(), 0, $this->getType());
        $technical = $md_obj->addTechnical();
        $technical->setSize($this->getFileSize());
        $technical->save();
        $format = $technical->addFormat();
        $format->setFormat($this->getFileType());
        $format->save();
        $technical->update();
    }
 
    protected function beforeMDUpdateListener(string $a_element): bool
    {
        // Check file extension
        // Removing the file extension is not allowed
        $md = new ilMD($this->getId(), 0, $this->getType());
        if (!is_object($md_gen = $md->getGeneral())) {
            return false;
        }
        $title = $this->appendSuffixToTitle($md_gen->getTitle(), $this->getFileName());
        $md_gen->setTitle($title);
        $md_gen->update();
 
        return true;
    }
 
    protected function doMDUpdateListener(string $a_element): void
    {
        // handling for technical section
        switch ($a_element) {
            case 'Technical':
 
                // Update Format (size is not stored in db)
                $md = new ilMD($this->getId(), 0, $this->getType());
                if (!is_object($md_technical = $md->getTechnical())) {
                    return;
                }
 
                foreach ($md_technical->getFormatIds() as $id) {
                    $md_format = $md_technical->getFormat($id);
                    $this->setFileType($md_format->getFormat());
                    break;
                }
 
                break;
        }
    }
 
    protected function doUpdateMetaData(): void
    {
        return;// add technical section with file size and format
        $md_obj = new ilMD($this->getId(), 0, $this->getType());
        if (!is_object($technical = $md_obj->getTechnical())) {
            $technical = $md_obj->addTechnical();
            $technical->save();
        }
        $technical->setSize($this->getFileSize());
 
        $format_ids = $technical->getFormatIds();
        if (count($format_ids) > 0) {
            $format = $technical->getFormat($format_ids[0]);
            $format->setFormat($this->getFileType());
            $format->update();
        } else {
            $format = $technical->addFormat();
            $format->setFormat($this->getFileType());
            $format->save();
        }
        $technical->update();
    }
}