Django: FileField name special chars replaced automatically -

my model:

class myfile(models.model):     file = models.filefield(upload_to="myfiles", max_length=500)     slug = models.slugfield(max_length=500, blank=true) 

when file names contain special chars, such ' '(space), special chars replaced underscore automatically. where (in function) happen? how disable automatic validation?

thanks

update

any comments on following codes? thanks

""" https://docs.djangoproject.com/en/1.9/_modules/django/core/files/storage/#storage.get_valid_name overwrite get_valid_name() function,  """ class overwritestorage(filesystemstorage):      def get_valid_name(self, name):         print "name=", name         return name  class myfile(models.model):     file = models.filefield(upload_to="myfiles", max_length=500, storage=overwritestorage()) 

it depends on storage. filefield calls storage.get_valid_name on sotrage. ref

you can overwrite function (depending on storage), think it's better leave is. can use name field.

if use filesystemstorage, call django.utils.text.py, replaces spaces underscores. ref

edit:

assuming use default filesystemstorage here's how override it:

create file (probably in main app)

storage.py:

from django.core.files.storage import filesystemstorage django.utils.deconstruct import deconstructible   @deconstructible class customfilesystemstorage(filesystemstorage):      def get_valid_name(self, name):         return name 

(you might need @deconstructible decorator migrations)

now have 2 options use storage. can either specify in models explicitly:

my model:

class myfile(models.model):     file = models.filefield(upload_to="myfiles", max_length=500, storage=customfilesystemstorage)     slug = models.slugfield(max_length=500, blank=true) 

or can set globally in settings.py:

default_file_storage = '{yourapp}.storage.customfilesystemstorage' 

ref