Django migrations not picking up max_length change on FileField

[Gerben Morsink]

I have subclassed a FileField (call it S3storage) which first had no max_length

Now I changed max_length to 1000. Then running ./manage.py makemigrations it does not seems to be picked up.

The only thing I did was:

class S3FileField(models.FileField):
    def __init__(self, *args, **kwargs):
        super(S3PrivateFileField, self).__init__(*args, **kwargs)
        self.storage.default_acl = "private"

[Baptiste Mispelon]

Hi,

What you're describing seems to work for me (Django detects the change and writes a migration).

Could you show the full code of your model and custom field?

Thanks.

[Gerben Morsink]

Ah, sorry! It works like I posted. But I wanted to do:

class S3PrivateFileField(models.FileField):
    def __init__(self, *args, **kwargs):
        if not kwargs.get('max_length',None):
            kwargs.update({'max_length':1000})
        super(S3PrivateFileField, self).__init__(*args, **kwargs)
        self.storage.default_acl = "private"