On Dec 28, 10:01 am, "Russell Keith-Magee" <freakboy3...@gmail.com>
wrote:
> On Sun, Dec 28, 2008 at 5:32 AM, adambossy <adambo...@gmail.com> wrote:
>
> > Russ,
>
> > Thanks for the reply. Specifically, I am wondering if there is some
> > feature of the Models API that allows me to retrieve the foreign key
> > object so that it is included in the serialized string. That is,
> > without writing my own serializer (which I suspect I may have to do).
>
> The serializer is decoupled from the Model API, so your question is
> unrelated to the model API. Serialization exploits the model metatdata
> embedded in models; the issue in this case is that the data extracted
> from the model by the serializer doesn't meet your requirements. You
> want to have a different serialization format (i.e., you want to roll
> out serialized objects in a different format to that provided by
> default). This means you will need to write your own serializer.
>
> Looking for deeper solutions to this problem -
>
> Ticket #4656 possibly describes part of your problem - this ticket
> describes an enhancement that would allow the serializer to follow.
> This would be much like the select_related() operator on querysets,
> but for serialization. This ticket hasn't seen any activity for a
> while, but it has been accepted for inclusion as soon as a working
> implementation is available.
The code attacted #4656 can be used as is for achieving the kind of
serialization that Adam requires. I'm am also using it quite
extensively in a large RESTful application. You can register my
serializer classes to replace the default Django json serializer. In
your settings.py add:
SERIALIZATION_MODULES = { 'json' : 'wadofstuff.serializers.json' }
Then in your own code from your example above
from django.core import serializers
print serializers.serialize('json', Template.objects.get(id=1),
relations=('type',))
{
"pk": 1,
"model": "template",
"fields": {
"type": {
"pk": 3,
"model": "type",
"fields": {"name": "TemplateType3"}
}
},
cheers
Matthew
--
Matthew Flanagan
http://wadofstuff.blogspot.com
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