Hi, i would like to perform validation on m2m field to control, if user
made any changes. I'd like to disallow removing relations from m2m field,
only adding them.
example:
model Product(models.Model):
name = models.TextField()
model Order(models.Model):
products = models.ManyToManyField(Product)
If user creates an order with three products, he can't remove any product
from order after object has been saved.
Is there any way to do that on model level?
if i put in clean() method:
current_products = self.products.all() i will get list of products
currently assigned to order. Can i get list of objects that was chosen in
form, so i could compare them and raise validation error if needed?
--
Linux user
--
You received this message because you are subscribed to the Google Groups "Django
users" group.
To post to this group, send email to django-users@googlegroups.com.
To unsubscribe from this group, send email to
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/django-users?hl=en.
