Heroku doesnt migrate models on Django

Question

I just deploy my Django app to Heroku but I cant migrate my migrations to heroku. First I run : heroku run python manage.py migrate all the migrations list as OK but when I showmigrations, none of them is migrating (all blank [ ]).

Then I try heroku run bash and migrate from there, everything seems ok even showmigrations from bash showing all of the migrations is working. I even manage to create a superuser. But when I open my admin page and log in with superuser it shows 'account.account' table does not exist and when I check showmigrations again all of the migrations are gone. I have been repeating this migration over and over and still can't figure this out.

Does anyone know what I am doing wrong here?

Edit : I don't know if this is related but when I push my project to Heroku the first time, I'm using Postgre with this setting :

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql_psycopg2',
        'NAME': DB_NAME,
        'USER': DB_USER,
        'PASSWORD': DB_PASSWORD,
        'HOST': 'localhost',
        'PORT': '5432',
    }
}

but when I try to run migrations it shows an error something like cant access localhost with 5432 port, it turns out that Heroku trying to access postgre in my localhost instead of using Heroku Postgres. The solution I found is to dump my db and reload it to Heroku. And since I don't know how to set that up. I just comment that postgre setting and replace it with default django setting :

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': BASE_DIR / 'db.sqlite3',
    }
}

create my dbsqlite file, running migrations again then once again push it to Heroku, hoping to find an easy way out but instead ended up in this problem

Jackhammer · Accepted Answer · 2021-10-10 12:19:43Z

1

I'd recommend you to push a migrated project to heroku that is

python manage.py migrate

then push that migrated project to heroku

the reason your superuser doesn't get stored while creating superuser from heroku bash is because heroku has an ephemeral drive i.e heroku clears all the modified data from orignal push after equal interval of time.

answered Oct 10, 2021 at 12:19

Jackhammer

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2 Comments

Andi Fathul Mukminin Over a year ago

my app is already migrated before being pushed to Heroku

Andi Fathul Mukminin Over a year ago

added the edit for a context, probably related with the problem

Andi Fathul Mukminin · Accepted Answer · 2021-10-10 15:16:25Z

0

It turns out that I forgot to install django-heroku. More on this : https://devcenter.heroku.com/articles/django-app-configuration

answered Oct 10, 2021 at 15:16

Andi Fathul Mukminin

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