Hi all,
I've been digging in this problem and haven't found how to solve it. I've
got two secure resources, ComplementoResource and ProductoResource defined
as follow:
class ComplementoResource(CommonModelResource):
restaurante = fields.ForeignKey(RestauranteResource, 'restaurante')
restaurante_id = fields.IntegerField(attribute='restaurante_id')
class Meta:
queryset = Complemento.objects.all()
resource_name = 'complementos'
list_allowed_methods = ['get', 'post', 'put', 'delete']
authentication = tastypie.authentication.ApiKeyAuthentication()
authorization = tastypie.authorization.Authorization()
def alter_list_data_to_serialize(self, request, data):
return self.alter_json_list(data, 'complementos')
def apply_authorization_limits(self, request, object_list):
return object_list.filter(restaurante__user=request.user)
class ProductoResource(CommonModelResource):
restaurante = fields.ForeignKey(RestauranteResource, 'restaurante')
restaurante_id = fields.IntegerField(attribute='restaurante_id')
complementos = fields.ManyToManyField(ComplementoResource,
'complementos', full=True)
class Meta:
queryset = Producto.objects.all()
resource_name = 'productos'
list_allowed_methods = ['get', 'post', 'put', 'delete']
authentication = tastypie.authentication.ApiKeyAuthentication()
authorization = tastypie.authorization.Authorization()
def alter_list_data_to_serialize(self, request, data):
return self.alter_json_list(data, 'productos')
def apply_authorization_limits(self, request, object_list):
return object_list.filter(restaurante__user=request.user)
The problem comes when I try to post a new entity Producto with one or more
entities from Complemento. I get "'NoneType' object has no attribute
'user'" error message. The request parameter in the
method apply_authorization_limits of CombinadoResource get's a value of
None. After digging a bit, I've seen that in the file fields.py, there is
a method called resource_from_data used, and in line 548 (at least in my
version) that says:
return fk_resource.obj_update(fk_bundle, **data)
This method has the correct request value, but doesn't pass it
to fk_resource.obj_updat, so it get's the default value (None) and after
two or three mor calls the error raises. And the funny thing is that I get
an error but the new entity Producto is inserted (without entities of
Complementos).
Anybody knows if I'm going in the wrong way and this things have to be done
otherwise? And the other question, anybody knows how to abort the insertion
of the entity Producto if entities of Complement are not inserted?
Thank you all very much
Alberto
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