Hi everyone,
I'm getting the same error exactly while running the schemamigration
command:
TypeError: 'NoneType' object has no attribute '__getitem__'
In my case the model is cartridge.shop.models.Product but the situation is
really really close:
EXTRA_MODEL_FIELDS = (
# Four-item sequence for one field injected.
(
# Dotted path to field.
"cartridge.shop.models.Product.tags",
# Dotted path to field class.
"ManyToManyField",
# Positional args for field class.
('theme.Tag', ),
# Keyword args for field class.
{"related_name": "products", "blank": True, "null": True},
),
)
And the theme.Tag model is:
class Tag(models.Model):
"""
"""
nome = models.CharField(_("Nome"), blank=True, max_length=100)
Has anyone found the problem or what's wrong with this setup?
Thank you,
Maurizio
Il giorno venerdì 1 agosto 2014 16:59:19 UTC+2, Ryan Sadwick ha scritto:
>
> Make sure you run a south schemamigration on the blog app itself:
>
> Something like:
> manage.py schemamigration blog --auto
>
>
>
>
>
> On Tuesday, July 29, 2014 10:14:18 AM UTC-4, Beau Severson wrote:
>>
>> I was also wondering the answer to this. I'm trying to add a new M2M
>> field to the BlogPost model and I keep getting the exact same error. Is
>> this a bug for mezzanine using south? My EXTRA_MODEL_FIELDS contains the
>> following:
>>
>> (
>> "mezzanine.blog.models.BlogPost.industry",
>> "ManyToManyField", # type of field to add
>> ("users.Industry",),
>> {"blank": True, "null": True},
>> ),
>>
>> Everytime I attempt the migration though I get the same error you are
>> seeing.
>>
>> On Friday, January 11, 2013 8:40:05 AM UTC-6, Sam wrote:
>>>
>>>
>>> Hello,
>>>
>>> In the admin interface i would like it to be possible to select multiple
>>> genres for blogposts. These genres are from a different model so I used the
>>> technique described in the manual.
>>>
>>> I try to add a custom ManyToManyField to the blog app using the
>>> following syntax in my settings.py:
>>>
>>> (
>>> "mezzanine.blog.models.BlogPost.genre",
>>> "ManyToManyField",
>>> ('blog_custom.Genre',),
>>> {"null":True, "blank": True,},
>>> ),
>>>
>>> I started a custom app called blog_custom where I'd like to store the
>>> migrations. I have defined my Genre model as follows:
>>>
>>> class Genre(models.Model):
>>> name = models.CharField(max_length=300)
>>>
>>> Given the fact that I use South in this project, I have to perform a
>>> migration at which point I get the following error:
>>> TypeError: 'NoneType' object has no attribute '__getitem__'
>>>
>>> After some investigation I found out that this issue might actually be
>>> related to South, or related to the way the arguments are passed on from
>>> mezzanine to South. If I, for example, create the intermediare table that
>>> should have been created with the migration manually, and run the migration
>>> after this fact, it does complete since south does not have to create it.
>>> The problem with this approach is that Django will not use this
>>> intermediary model in the admin interface, which is what I need.
>>>
>>> Any thoughts?
>>>
>>> Thanks
>>>
>>
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