tsd/TSDBook.php5

<?php

class TSDBook extends TSDObject {
    public static $ATTRIBUTES = array(
        'id' => false,
        'title' => 'edit',
        'gradeOrCourse' => 'edit',
        'coverImage' => false
    );

    public function __construct($id = '') {
        parent::__construct('TSDBook', self::$ATTRIBUTES, 'id', $id);
    }

    public function isValid() {
        return (
            ($this->id == '' || ctype_digit((string) $this->id)) &&
            (is_string($this->title) && $this->title != '') &&
            ($this->gradeOrCourse == '' || is_string($this->gradeOrCourse)) &&
            ($this->coverImage === null || ctype_digit((string) $this->coverImage))
        );
    }

    public static function getList($constraints = array(), $limit = array(), $order = array(), $cnt = false) {
        return self::getListImpl('TSDBook', 'TSDBook', array_keys(self::$ATTRIBUTES), $constraints,
                                    array(), $limit, $order, $cnt);
    }

    public function listChildren($constraints = array(), $limit = array(), $order = array(), $cnt = false) {
        return self::getListImpl('TSDChapter', 'TSDChapter', array_keys(TSDChapter::$ATTRIBUTES), $constraints,
                                    array('bookId' => $this->id), $limit, $order, $cnt);
    }

    public function listValidChildren($constraints = array(), $limit = array(), $order = array(), $cnt = false) {
        $ljoin = 'LEFT JOIN TSDChapter ON TSDChapter.bookId = Book.id
                LEFT JOIN TSDSection ON TSDSection.chapterId = Chapter.id';
        return self::getListImpl('TSDChapter', 'TSDChapter', null, $constraints,
                                    array('bookId' => $this->id, 'IS NOT NULL', 'TSDSection.id' => 0),
                                    $limit, $order, $cnt, $ljoin);
    }

    public function setCoverImage($snapPath) {
        if(!$this->checkInit('Cannot set cover image')) return null;
        if(!TSD::can('edit')) {
            $this->setError('Permission denied');
            return false;
        }

        $img = SnapResource::lookup($snapPath);

        if(!$img) {
            $this->setError('Could not find image with path \'' . $snapPath . '\'');
            return false;
        }

        $this->setAttr('coverImage', $img->getId());
        return true;
    }

    public function uploadCoverImage($tmpFile, $fileName = '') {
        if(!$this->checkInit('Cannot set cover image')) return null;
        if(!TSD::can('edit')) {
            $this->setError('Permission denied');
            return false;
        }

        Snap2::reinit('admin');

        if($fileName == '')
            $fileName = basename($tmpFile);

        $basePath = SConfig::getDefault('tsd.snapPath');
        $imgPath = SConfig::getDefault('tsd.imageDir');
        $path = $basePath . $imgPath . '/';
        $imgDir = SnapDirectory::lookup($path);
        if(!$imgDir)
            $imgDir = SnapDirectory::lookup($basePath)->createDirectory($imgPath, "Textbook Images");

        $sn = substr(preg_replace('/[^a-zA-Z0-9_\-]/', '_', $this->gradeOrCourse . $this->title), 0, 64);
        $img = SnapResource::lookup($path . $sn);
        if(!$img)
            $img = $imgDir->createResource($sn, SnapResource::TYPE_MEDIA_IMAGE, $this->title);
        if(!$img) {
            $this->setError('Could not create image resource: ' . $imgDir->getLastError());
            return false;
        }

        $v = $img->createVersion();
        $cm = new SnapContentMediaImage($v);

        if(!$cm->uploadImage($tmpFile, $fileName, array('thumbSize' => array('width' => 159.0, 'height' => 100.0),
                                'thumbCropScale' => true, 'medium_resize' => 'standard', 'display_resize' => 'standard')))
        {
            $cm->delete();
            $v->defunct();
            $v->destroy();
            $this->setError('Could not upload image: ' . $cm->getLastError());
            return false;
        }

        if(!$v->update($cm)) {
            $cm->delete();
            $v->defunct();
            $v->destroy();
            $this->setError('Could not update image: ' . $v->getLastError());
            return false;
        }

        $v->submit();
        $v->approveForDev();

        $this->setAttr('coverImage', $img->getId());

        return true;
    }

    public function addChapter($name) {
        if(!$this->checkInit('Cannot add chapter')) return null;
        if(!TSD::can('edit')) {
            $this->setError('Permission denied');
            return false;
        }

        $chapter = new TSDChapter();
        $chapter->setAttr('name', $name);
        $chapter->setAttr('bookId', $this->id);
        if(!$chapter->commit())
            return null;

        return $chapter;
    }

    public function deleteChapterByName($name) {
        if(!$this->checkInit('Cannot delete chapter(s)')) return null;
        if(!TSD::can('edit')) {
            $this->setError('Permission denied');
            return false;
        }

        $chapters = $this->listChildren(array('name' => $name));
        foreach($chapters as $c)
            if(!$c->delete())
                return false;
        return true;
    }

    public function getParent() {
        return null;
    }

    public function getIdentifier() {
        return $this->title . ' ' . $this->gradeOrCourse;
    }

    public function delete() {
        $imgID = $this->coverImage;
        if(parent::delete()) {
            Snap2::reinit('admin');
            $img = SnapResource::retrieve($imgID);
            if(!$img->delete()) {
                foreach($img->getError() as $err)
                    $this->setError($err);
                return false;
            }
            return true;
        }
        else
            return false;
    }
}

?>

---