On 17 oct, 17:45, Oleg Oltar <oltarase...@gmail.com> wrote:
> Hi
>
> I am trying to create a model for Article site. I want to link each article
> with 3-5 related articles, so what I am thinking of is creating code this
> way:
>
> class Article (models.Model):
> # Tiny url
> url = models.CharField(max_length = 30, unique=True)
> is_published = models.BooleanField()
> author = models.CharField(max_length = 150)
> title = models.CharField(max_length = 200)
> short_description = models.TextField(max_length = 600)
> body = tinymce_models.HTMLField()
> related1 = models.ForeignKey(Article)
> related2 = models.ForeignKey(Article)
> related3 = models.ForeignKey(Article)
>
> But not sure if it's possible to make a foreign key relation to the same
> model.
It is of course possible, and it's documented here:
http://docs.djangoproject.com/en/dev/ref/models/fields/#django.db.models.ForeignKey
But:
>Also if for example, I will decide to bind 6, 7 articles together,
> how that will work, do I have to write related4, 5, 6....in the model? I
> want to have more common solution, so if I binding more articles, I don't
> need to redefine code again and again
A very sensible concern !-)
And the solution is obviously to use a many to many relationship - as
documented here:
http://docs.djangoproject.com/en/dev/ref/models/fields/#manytomanyfield
You'll probably want to make this relationship symetrical (as
explained in the FineManual).
HTH
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