id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
6635	Unable to save model with ImageField/FileField on Windows	anonymous	nobody	"Given the model, on Windows:

{{{

class StaffMember(models.Model):
    name = models.CharField(max_length=100, unique=True)
    photo = models.ImageField(upload_to=""img/staff/"", blank=True)
    #...

}}}

A validation error is raised whenever attempting to save from within the Django Admin interface. I found ticket #2923 and the issue seemed similar so I ran some tests on the code in django/db/models/fields/init.py. In the function ""isWithinMediaRoot"" ""field_data"" has a forward slash appended to the start of the path. On Windows ""os.path.join"" only returns the path after that leading forward slash resulting in an incorrect absolute path and a ValidationError. If you strip out the leading forward slash the absolute path is correctly determined.

Example (Python 2.5):

{{{

>>> root = 'F:\\root\\' # slash orientation doesn't matter here as far as os.path.join is concerned.
>>> path = '/path/to/file.txt'
>>> os.path.join(root, path)
'/path/to/file.txt'
>>> path = 'path/to/file.txt'
>>> os.path.join(root, path)
'F:\\root\\path/to/file.txt'

}}}"		closed	Database layer (models, ORM)	dev		invalid	filefield windows		Unreviewed	1	0	0	0	0	0