'Single data from the relation m2m field - Django

In my signal (post_save), I would like to send a single email to a single person who has been assigned using the m2m relationship. One-to-many, the message goes to the user, but m2m nothing happens.

specials = models.ManyToManyField(User, related_name='special_users')

I've tried everything, searched the topics, but still nothing happens. I have included the pseudocode to illustrate the situation.

all_users_from_m2m = instance.specials.all()

    for single_user in all_users_from_m2m:
    
        message = ('Subject', 'Here is message', '[email protected]', [single_user.email])
        send_mass_mail(message, fail_silently=False)
pythondjangofor-loopmany-to-many


Solution 1:[1]

I'm not totally sure if I understand your test case but there is a signal called m2m_changed. You could use it like so for instance:

from django.db.models.signals import m2m_changed

def on_some_model_specials_m2m_changed(sender, instance, *args, **kwargs):
    # some actions here
    pass

m2m_changed.connect(
    on_some_model_specials_m2m_changed, sender=models.YourModel.specials.through)

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