Django 1.7 compatibility

[ClaudiuLSH]

Not present in: commit 462edd22e5577ff9ee6477f7572b571700d1a2aa

I noticed this issue starting with: commit b787ef2dbff957c5b5a64be13f01f985d17ff05b
It might of been introduced in between those 2 commits. Please note that this 2 commits are for Django and not django-json-field.

Error bellow:

Internal Server Error: /phpanel/library/47/
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/Django-1.7a2-py2.7.egg/django/core/handlers/base.py", line 113, in get_response
response = wrapped_callback(request, _callback_args, *_callback_kwargs)
File "/usr/local/lib/python2.7/dist-packages/Django-1.7a2-py2.7.egg/django/contrib/admin/options.py", line 550, in wrapper
return self.admin_site.admin_view(view)(_args, *_kwargs)
File "/usr/local/lib/python2.7/dist-packages/Django-1.7a2-py2.7.egg/django/utils/decorators.py", line 105, in _wrapped_view
response = view_func(request, _args, *_kwargs)
File "/usr/local/lib/python2.7/dist-packages/Django-1.7a2-py2.7.egg/django/views/decorators/cache.py", line 52, in _wrapped_view_func
response = view_func(request, _args, *_kwargs)
File "/usr/local/lib/python2.7/dist-packages/Django-1.7a2-py2.7.egg/django/contrib/admin/sites.py", line 202, in inner
return view(request, _args, *_kwargs)
File "/usr/local/lib/python2.7/dist-packages/Django-1.7a2-py2.7.egg/django/contrib/admin/options.py", line 1420, in change_view
return self.changeform_view(request, object_id, form_url, extra_context)
File "/usr/local/lib/python2.7/dist-packages/Django-1.7a2-py2.7.egg/django/utils/decorators.py", line 29, in _wrapper
return bound_func(_args, *_kwargs)
File "/usr/local/lib/python2.7/dist-packages/Django-1.7a2-py2.7.egg/django/utils/decorators.py", line 105, in _wrapped_view
response = view_func(request, _args, *_kwargs)
File "/usr/local/lib/python2.7/dist-packages/Django-1.7a2-py2.7.egg/django/utils/decorators.py", line 25, in bound_func
return func.get(self, type(self))(_args2, *_kwargs2)
File "/usr/local/lib/python2.7/dist-packages/Django-1.7a2-py2.7.egg/django/db/transaction.py", line 362, in inner
return func(_args, _kwargs)
File "/usr/local/lib/python2.7/dist-packages/Django-1.7a2-py2.7.egg/django/contrib/admin/options.py", line 1356, in changeform_view
ModelForm = self.get_form(request, obj)
File "/usr/local/lib/python2.7/dist-packages/Django-1.7a2-py2.7.egg/django/contrib/admin/options.py", line 609, in get_form
fields = flatten_fieldsets(self.get_fieldsets(request, obj))
File "/usr/local/lib/python2.7/dist-packages/Django-1.7a2-py2.7.egg/django/contrib/admin/options.py", line 347, in get_fieldsets
return [(None, {'fields': self.get_fields(request, obj)})]
File "/usr/local/lib/python2.7/dist-packages/Django-1.7a2-py2.7.egg/django/contrib/admin/options.py", line 598, in get_fields
form = self.get_form(request, obj, fields=None)
File "/usr/local/lib/python2.7/dist-packages/Django-1.7a2-py2.7.egg/django/contrib/admin/options.py", line 634, in get_form
return modelform_factory(self.model, **defaults)
File "/usr/local/lib/python2.7/dist-packages/Django-1.7a2-py2.7.egg/django/forms/models.py", line 541, in modelform_factory
return type(form)(class_name, (form,), form_class_attrs)
File "/usr/local/lib/python2.7/dist-packages/Django-1.7a2-py2.7.egg/django/forms/models.py", line 284, in new
opts.help_texts, opts.error_messages)
File "/usr/local/lib/python2.7/dist-packages/Django-1.7a2-py2.7.egg/django/forms/models.py", line 214, in fields_for_model
formfield = formfield_callback(f, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/Django-1.7a2-py2.7.egg/django/contrib/admin/options.py", line 211, in formfield_for_dbfield
return db_field.formfield(**kwargs)
File "/usr/local/lib/python2.7/dist-packages/json_field/fields.py", line 197, in formfield
return super(JSONField, self).formfield(**defaults)
File "/usr/local/lib/python2.7/dist-packages/Django-1.7a2-py2.7.egg/django/db/models/fields/init.py", line 1859, in formfield
return super(TextField, self).formfield(**defaults)
File "/usr/local/lib/python2.7/dist-packages/Django-1.7a2-py2.7.egg/django/db/models/fields/init.py", line 836, in formfield
return form_class(_defaults)
File "/usr/local/lib/python2.7/dist-packages/json_field/forms.py", line 17, in init
super(JSONFormField, self).init(_args, **kwargs)
TypeError: init() got an unexpected keyword argument 'max_length'

[rafaduran]

I've got same issue testing Django 1.7 compatibility, are you planning to fix this any time soon?

[derek-schaefer]

Yes, now that Django 1.7 is due to be released soon. I haven't had as much cause to use Django lately so development has fallen behind a bit.

[danostrowski]

I'd love an updated version, because the other jsonfield package also is incompatible with 1.7.

Do we have a handle on the issues that need to be addressed?

[derek-schaefer]

Regrettably, not yet. A pull request would be great. Otherwise, I'll try to find a fix for this (and hopefully other standing issues) before the release of 1.7.

[w-]

This happens as part of this change in 1.7

The <textarea> tags rendered by Textarea now include a maxlength attribute if the TextField model field has a max_length.

It looks like we may want JSONFormField to inherit from django.forms.fields.CharField instead of fields.Field

What do others think?

[derek-schaefer]

I've pushed a simple fix for this issue. If anyone has ideas for a more fundamental improvement here please let me know. I'll keep this issue open for a while longer.

[w-]

thanks @derek-schaefer.
For my own understanding, is it inappropriate for JSONFormField to inherit from django.forms.fields.CharField instead of fields.Field?

[derek-schaefer]

That might work. I'll need to read the source for that class to be sure.