#10244: FileFields can't be set to NULL in the db
-------------------------------------+-------------------------------------
     Reporter:  oyvind               |                    Owner:  nobody
         Type:  Bug                  |                   Status:  new
    Component:  Database layer       |                  Version:  1.0
  (models, ORM)                      |               Resolution:
     Severity:  Normal               |             Triage Stage:  Accepted
     Keywords:  filefield NULL       |      Needs documentation:  1
  empty                              |  Patch needs improvement:  0
    Has patch:  1                    |                    UI/UX:  0
  Needs tests:  1                    |
Easy pickings:  0                    |
-------------------------------------+-------------------------------------

Comment (by siroky@…):

 I bumped into a problem. If `instance.null_file_field` is None then
 methods like `save()` will not work (AttributeError: 'NoneType' object has
 no attribute 'save'). I'm thinking about 2 solutions:
 1) Make the descriptor return value comparable to None (via `__eq__`).
 This is not very clean because the best practise is to use operator `is`
 (`is_none = x is None`).
 2) Keep the empty string ("") on the Python side as a representation of
 file's database NULL. Not very consistent but it has better backward
 compatibility if someone already uses the string comparison (`has_no_file
 = filefield.name == ""`).

 Any suggestions?

-- 
Ticket URL: <https://code.djangoproject.com/ticket/10244#comment:14>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.

-- 
You received this message because you are subscribed to the Google Groups 
"Django updates" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to [email protected].
To post to this group, send email to [email protected].
To view this discussion on the web visit 
https://groups.google.com/d/msgid/django-updates/064.f759c7f6c751ddb7041701c594733bb6%40djangoproject.com.
For more options, visit https://groups.google.com/groups/opt_out.

Reply via email to