handle patent data migration in import script

ippisite/ippidb/management/commands/import_v1_data.py

@@ -15,7 +15,10 @@ class Command(BaseCommand):
         for row in rows:
             try:
                 b = Bibliography()
-                b.source = 'PM'
+                if row[1]=='article':
+                    b.source = 'PM'
+                else:
+                    b.source = 'PT'
                 b.id_source = row[2]
                 b.save()
             except Exception as e: