Ansel_Faces_Base::getFromPicture PHP Method

    public function getFromPicture($image, $create = false)
    {
        // get image if ID is passed
        if (!$image instanceof Ansel_Image) {
            $image = $GLOBALS['injector']->getInstance('Ansel_Storage')->getImage($image);
            $gallery = $GLOBALS['injector']->getInstance('Ansel_Storage')->getGallery($image->gallery);
            if (!$gallery->hasPermission($GLOBALS['registry']->getAuth(), Horde_Perms::EDIT)) {
                throw new Horde_Exception_PermissionDenied(_("Access denied editing the photo."));
            }
        }
        // Get the rectangles for any faces in this image.
        $faces = $this->getFaces($image);
        if (empty($faces)) {
            return array();
        }
        // Clean up any existing faces we may have had in this image.
        Ansel_Faces::delete($image);
        // Process faces
        $fids = array();
        foreach ($faces as $i => $rect) {
            // Store face id db
            $sql = 'INSERT INTO ansel_faces (image_id, gallery_id, face_x1, ' . ' face_y1, face_x2, face_y2)' . ' VALUES (?, ?, ?, ?, ?, ?)';
            $params = $this->_getParamsArray($image, $rect);
            try {
                $face_id = $GLOBALS['ansel_db']->insert($sql, $params);
            } catch (Horde_Db_Exception $e) {
                throw new Ansel_Exception($result);
            }
            if ($create) {
                $this->_createView($face_id, $image, $rect);
                // Clear any loaded views to save on memory usage.
                $image->reset();
                $this->saveSignature($image->id, $face_id);
            }
            $fids[$face_id] = '';
        }
        // Update gallery and image counts
        try {
            $GLOBALS['ansel_db']->update('UPDATE ansel_images SET image_faces = ' . count($fids) . ' WHERE image_id = ' . $image->id);
            $GLOBALS['ansel_db']->update('UPDATE ansel_shares ' . 'SET attribute_faces = attribute_faces + ' . count($fids) . ' WHERE share_id = ' . $image->gallery);
        } catch (Horde_Db_Exception $e) {
            throw new Ansel_Exception($e);
        }
        // Expire gallery cache
        if ($GLOBALS['conf']['ansel_cache']['usecache']) {
            $GLOBALS['injector']->getInstance('Horde_Cache')->expire('Ansel_Gallery' . $gallery->id);
        }
        return $fids;
    }