store metadata per user. remove primaryid. only store isbn13

oml/media/opf.py

@@ -4,11 +4,9 @@
 
 import xml.etree.ElementTree as ET
 
-import stdnum.isbn
 
-from utils import normalize_isbn, get_language
+from utils import get_language, to_isbn13
 from ox import strip_tags
-import ox.iso
 
 import logging
 logger = logging.getLogger(__name__)
@@ -31,12 +29,9 @@ def info(opf):
             }.get(key, key)
             value = e.text
             if key == 'identifier':
-                isbn = normalize_isbn(value)
-                if stdnum.isbn.is_valid(isbn):
-                    if not 'isbn' in data:
-                        data['isbn'] = [isbn]
-                    else:
-                        data['isbn'].append(isbn)
+                isbn = to_isbn13(value)
+                if isbn:
+                    data['isbn'] = isbn
                 if e.attrib.get(ns + 'scheme') == 'AMAZON':
                     if not 'asin' in data:
                         data['asin'] = [value]