Have a look here:
https://docs.djangoproject.com/en/1.11/topics/db/multi-db/
<https://docs.djangoproject.com/en/1.11/topics/db/multi-db/>
Basically:
>>> # This will run on the 'default' database.
>>> Author.objects.all()
>>> # So will this.
>>> Author.objects.using('default').all()
>>> # This will run on the 'other' database.
>>> Author.objects.using('other').all()
> On 2 Aug 2017, at 12:47, kartik danidhariya <kartikdanidhar...@gmail.com>
> wrote:
>
> I just tried to find a solution for define database model wise in Django.
> like in my settings.py there are three databases
>
> settings.py
>
> DATABASES = {
> 'default': {
> 'ENGINE': 'django.db.backends.sqlite3',
> 'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
> },
> 'db_one': {
> 'ENGINE': 'django.db.backends.sqlite3',
> 'NAME': os.path.join(BASE_DIR, 'db_one.sqlite3'),
> },
> 'db_two': {
> 'ENGINE': 'django.db.backends.sqlite3',
> 'NAME': os.path.join(BASE_DIR, 'db_two.sqlite3'),
> },
> }
> And in my polls/models.py
>
> class Question(models.Model):
> question_text = models.CharField(max_length=200)
> pub_date = models.DateTimeField('date published')
>
>
> def __str__(self):
> return self.question_text
>
> def was_published_recently(self):
> return self.pub_date >= timezone.now() - datetime.timedelta(days=1)
>
> @python_2_unicode_compatible
> class Choice(models.Model):
> question = models.ForeignKey(Question, on_delete=models.CASCADE)
> choice_text = models.CharField(max_length=200)
> votes = models.IntegerField(default=0)
>
>
> def __str__(self):
> return self.choice_text
> now I want to add question model in db_one database and Choice model in
> db_two database so how can I do that
>
> I try with routers follow this multiple databases and multiple models in
> Django
> <https://stackoverflow.com/questions/18547468/multiple-databases-and-multiple-models-in-django>
> but it prefers only default database only after that i tried with put blank
> setting in default database and try ti migrate but it gives me an error
>
>
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