I added this new ticket today and I would like to know what is your
feedback or comments?


We are using Django for Speedy Net and Speedy Match
<https://github.com/speedy-net/speedy-net> (currently Django 1.11.18, we
can't upgrade to a newer version of Django because of one of our
requirements, django-modeltranslation). I want to validate each model
before saving it to the database, so I'm using class ValidateModelMixin as
the base of each model.

For this reason, I want to disable bulk_create in all managers in all of
our models. So I added this code:

class ValidateModelMixin(object):
    def save(self, *args, **kwargs):
        """Call `full_clean` before saving."""
        return super().save(*args, **kwargs)

class ManagerMixin(object):
    def bulk_create(self, *args, **kwargs):
        raise NotImplementedError("bulk_create is not implemented.")

class BaseModel(ValidateModelMixin, models.Model):
    def save(self, *args, **kwargs):
            field = self._meta.get_field('id')
            if ((not (self.id)) and (hasattr(field, 'id_generator'))):
                self.id = field.id_generator()
                while (self._meta.model.objects.filter(id=self.id).exists()):
                    self.id = field.id_generator()
        except FieldDoesNotExist:
        return super().save(*args, **kwargs)

    class Meta:
        abstract = True

class TimeStampedModel(BaseModel):
    date_created = models.DateTimeField(auto_now_add=True, db_index=True)
    date_updated = models.DateTimeField(auto_now=True, db_index=True)

    class Meta:
        abstract = True

class BaseManager(ManagerMixin, models.Manager):

class BaseUserManager(ManagerMixin, DjangoBaseUserManager):

I thought maybe it's good to add these settings - disable bulk_create in
all managers and call self.full_clean() before saving the models - as an
optional settings both in the project and also in each model (maybe in class
Meta) so it will be possible to override Django's default both per-project
and also for any specific model. I understand that the default is not to
call self.full_clean() before saving the models and to allow bulk_create in
the managers, but I suspect this may lead to invalid data in the database
of the projects.

The current code in the master is on
and the code in the branch I'm currently working on is on
אורי (Uri)

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