On Wed, Nov 17, 2010 at 11:46 PM, Marc Aymerich <glicer...@gmail.com> wrote:
> On Wed, Nov 17, 2010 at 11:36 PM, Jonas Geiregat <jo...@geiregat.org> wrote:
>> Hello,
>>
>> Can I use django's generic relations to create a model (GenericPost) that
>> can point to other model (APost) or model (ReviewPost) ?
>> And then use this GenericPost model to get a list of all latest APost's and
>> ReviewPost's ?
>>
>> I've been trying this all day long but I couldn't get around the API.
>>
>> Here's what I've done:
>>
>> from django.db import models
>> from django.contrib.contenttypes.models import ContentType
>> from django.contrib.contenttypes import generic
>>
>>
>> # Create your models here.
>>
>> class Post(models.Model):
>> title = models.CharField(max_length=100)
>>
>> class Meta:
>> abstract = True
>>
>> class APost(Post):
>> content = models.CharField(max_length=100)
>>
>> class Review(Post):
>> rcontent = models.CharField(max_length=100)
>>
>> class GenericPost(models.Model):
>> content_type = models.ForeignKey(ContentType)
>> object_id = models.PositiveIntegerField()
>> content_object = generic.GenericForeignKey('content_type', 'object_id')
>>
>>
>> Some shell code trying to build up some data:
>>
>> In [1]: from genericv.foo.models import APost, GenericPost, Review
>>
>> In [2]: a = APost(content="something")
>>
>> In [3]: a.save()
>>
>> In [4]: g = GenericPost(content_object=a)
>>
>> In [5]: g.save()
>>
>> In [6]: GenericPost.objects.all()
>> Out[6]: [<GenericPost: GenericPost object>, <GenericPost: GenericPost
>> object>, <GenericPost: GenericPost object>, <GenericPost: GenericPost
>> object>]
>>
>>
>>
>> Why is it that I have 4 objects already when I only have created one ?
>
> I don't know, but I try your code and I get only one object:
>
>>>> GenericPost.objects.all()
> [<GenericPost: GenericPost object>]
>
>>And how do I access that particular object by using the GenericPost model ?
>
> I'm not a master of generic relations and I donk now if this way is
> the best of, but you can use content_object manager for retrieve the
content_object is not a manager, I apologize for the confusion here.
--
Marc
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