Hi, Here's my model :
class Image(meta.Model): paragraph = meta.ForeignKey(Paragraph) creation_date = meta.DateTimeField(null=False, auto_now_add=True) update_date = meta.DateTimeField(null=False, auto_now=True) name = meta.CharField(maxlength = 255, blank = True) img = meta.ImageField(upload_to='imgs') Here's the traceback File "/home/saruman/dev/python/django/lang/python241/lib/python2.4/site-packages/django/core/handlers/base.py", line 64, in get_response response = callback(request, **param_dict) File "/home/saruman/dev/python/django/lang/python241/lib/python2.4/site-packages/django/views/admin/main.py", line 778, in add_stage pk_value = getattr(new_object, opts.pk.column) File "/home/saruman/dev/python/django/lang/python241/lib/python2.4/site-packages/django/utils/functional.py", line 3, in _curried return args[0](*(args[1:]+moreargs), **dict(kwargs.items() + morekwargs.items())) File "/home/saruman/dev/python/django/lang/python241/lib/python2.4/site-packages/django/core/meta/__init__.py", line 1471, in manipulator_save f.save_file(new_data, new_object, change and self.original_object or None, change, rel=False) File "/home/saruman/dev/python/django/lang/python241/lib/python2.4/site-packages/django/core/meta/fields.py", line 445, in save_file FileField.save_file(self, new_data, new_object, original_object, change, rel) File "/home/saruman/dev/python/django/lang/python241/lib/python2.4/site-packages/django/core/meta/fields.py", line 417, in save_file getattr(new_object, 'save_%s_file' % self.name)(new_data[upload_field_name]["filename"], new_data[upload_field_name]["content"]) File "/home/saruman/dev/python/django/lang/python241/lib/python2.4/site-packages/django/utils/functional.py", line 3, in _curried return args[0](*(args[1:]+moreargs), **dict(kwargs.items() + morekwargs.items())) File "/home/saruman/dev/python/django/lang/python241/lib/python2.4/site-packages/django/core/meta/__init__.py", line 1042, in method_save_file self.save() File "/home/saruman/dev/python/django/lang/python241/lib/python2.4/site-packages/django/utils/functional.py", line 3, in _curried return args[0](*(args[1:]+moreargs), **dict(kwargs.items() + morekwargs.items())) File "/home/saruman/dev/python/django/lang/python241/lib/python2.4/site-packages/django/core/meta/__init__.py", line 787, in method_save db_values + [pk_val]) File "/home/saruman/dev/python/django/lang/python241/lib/python2.4/site-packages/django/core/db/base.py", line 10, in execute result = self.cursor.execute(sql, params) ProgrammingError: ERREUR: Syntaxe en entrée invalide pour le type timestamp with time zone: «» UPDATE maccaferri_images SET paragraph_id='1',creation_date='',update_date='2005-09-24 07:29:45.401427',legende='yoyo',img='imgs/photo1.jpg',position='0' WHERE id=1 I guess that the problem occurs when using a conjunction of a : meta.DateTimeField(null=False, auto_now_add=True) meta.ImageField(upload_to='imgs') or FileField I suppose. It looks like during an insert : 1 - The entry is created in the DB 2 - The file is checked and saved on the filesystem 3 - The DB entry is update with the file informations But the creation_date shouldn't be in the update query or shouldn't be empty. Am I right ?? Laurent.