Re: Missing/inconsistent GenericIPAddressField validation?

['Tom Evans' via Django users]

On Mon, Sep 7, 2015 at 12:33 PM, Hans S. Tømmerholt  wrote:
> GenericIPAddressField isn't intended to represent a CIDR address, which I
> guess is what I'm trying to put into it.
>
> There is stuff like this:
> https://pypi.python.org/pypi/django-netfields/0.2.1

+1

This is what we use for CIDR and arbitrary IP ranges, stored in
postrgres as native types so that queries/filters all happen on the DB
server with exceptional performance.

>
> I am still slightly confused as to why validation doesn't occur on the model
> level, though.


Validation only happens if you instruct it to happen. If you just
save() the model instance, no validation occurs. See the "Note ..."
paragraph here:

https://docs.djangoproject.com/en/1.8/ref/models/instances/#validating-objects

Cheers

Tom

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Re: Missing/inconsistent GenericIPAddressField validation?

[Hans S . Tømmerholt]

On Mon, 07 Sep 2015 12:41:15 +0200, Hans S. Tømmerholt   
wrote:




Hello.

In a nutshell:
It appears the validator applied to a GenericIPAddressField form field  
doesn't allow an IP address with a netmask.
But saving the same thing to a PostgreSQL database via a model works  
just fine.


As far as I can tell, both model and form fields use the same  
validators? Is this somehow expected?


I'll answer some of my own questions.

GenericIPAddressField isn't intended to represent a CIDR address, which I  
guess is what I'm trying to put into it.


There is stuff like this:  
https://pypi.python.org/pypi/django-netfields/0.2.1


I am still slightly confused as to why validation doesn't occur on the  
model level, though.


I got thrown by a different part of this app using GenericIPAddressField  
for a CIDR-value, which is working fine because it's never passed through  
a form.



class IPAddressList(models.Model):
 address = models.GenericIPAddressField()


class IPAddressListForm(ModelForm):
 class Meta:
 model = IPAddressList
 exclude = []


ip_address = "127.0.0.1/8"
o = IPAddressList.objects.create(address=ip_address)
print o.address
# 127.0.0.1/8

But then:

form = IPAddressListForm({"address": ip_address})
form.is_valid()
print form.errors
# addressEnter a  
valid IPv4 or IPv6 address.


I'm using Django 1.8.

I keep looking for stupid mistakes I might have made. Suggestions  
welcome.





--
Best regards/vennlig hilsen
Hans S. Tømmerholt
Application Developer, Hosting, Global IT

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Missing/inconsistent GenericIPAddressField validation?

[Hans S . Tømmerholt]

Hello.

In a nutshell:
It appears the validator applied to a GenericIPAddressField form field  
doesn't allow an IP address with a netmask.
But saving the same thing to a PostgreSQL database via a model works just  
fine.


As far as I can tell, both model and form fields use the same validators?  
Is this somehow expected?



class IPAddressList(models.Model):
address = models.GenericIPAddressField()


class IPAddressListForm(ModelForm):
class Meta:
model = IPAddressList
exclude = []


ip_address = "127.0.0.1/8"
o = IPAddressList.objects.create(address=ip_address)
print o.address
# 127.0.0.1/8

But then:

form = IPAddressListForm({"address": ip_address})
form.is_valid()
print form.errors
# addressEnter a valid  
IPv4 or IPv6 address.


I'm using Django 1.8.

I keep looking for stupid mistakes I might have made. Suggestions welcome.

--
Best regards/vennlig hilsen
Hans S. Tømmerholt
Application Developer, Hosting, Global IT
Opera Software

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