Use new transaction API in syncdb section of migrate

from django.db.migrations.loader import AmbiguityError

from django.utils.datastructures import SortedDict

from django.utils.importlib import import_module

from django.utils.module_loading import module_has_submodule, import_by_path

from django.utils.module_loading import module_has_submodule

class Command(BaseCommand):

        # Create the tables for each model

        if self.verbosity >= 1:

            self.stdout.write("  Creating tables...\n")

        with transaction.commit_on_success_unless_managed(using=connection.alias):

        with transaction.atomic(using=connection.alias, savepoint=False):

            for app_name, model_list in manifest.items():

                for model in model_list:

                    # Create the model's database table, if it doesn't already exist.

                        cursor.execute(statement)

                    tables.append(connection.introspection.table_name_converter(model._meta.db_table))

        # We force a commit here, as that was the previous behaviour.

        # If you can prove we don't need this, remove it.

        transaction.set_dirty(using=connection.alias)

        # Send the post_syncdb signal, so individual apps can do whatever they need

        # to do at this point.

        emit_post_sync_signal(created_models, self.verbosity, self.interactive, connection.alias)