Is there a way to specify a constraint on a model ManyToMany
relationship?
For example, if I wanted to define an Animal model that has a field
which specifies which other animals it eats and I wanted to limited
these animals_I_eat relationships to animals who's specie_name starts
with "x", how would I do this?
E.g.
class Animal(models.Model):
specie_name = models.CharField(max_length=50)
animals_I_eat = models.ManyToManyField('self',blank=True)
#where animals_I_eat.specie_name starts with "x"
This is probably a very bad example, but I hope you get what I'm
trying to say
Thanks,
Alex
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