Hi,
I have a model Post, which has the following structure:
class Post(models.Model):
body = models.TextField()
arts = models.ForeignKey(Article, blank=True, null=True)
pics = models.ForeignKey(Gallery, blank=True, null=True)
A post can be made from an article or a gallery or both. Is there
anywhere to add a constraint to force there to be either an article or
gallery associated with a post in the actual declaration of the model?
Many Thanks in advance,
Nathan
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