I’ve read the docs and many posts about this, with no luck.

artwork_list = Artwork.objects.only('title','image_name').filter(groups__icontains=group)

This produces the “Unsupported lookup ‘icontains’ for ForeignKey or join on the field not permitted” error.

Models (just the relevant parts:

class Group(models.Model):
    name = models.CharField(max_length=200, null=True, blank=False)

class Artwork(models.Model):
    groups = models.ManyToManyField(Group)

View (ditto):

def group_page(request, site_id, group_id ): 
    group = get_object_or_404(Group, pk=group_id)
        artwork_list = Artwork.objects.only('title','image_name', "groups").filter(groups__icontains=group)

Is this not the correct syntax?