make sure you tell django that you have make changes the by running this
python manage.py makemigrations
after that
enter python manage.py migrate
it will automatically update your database
On Tuesday, March 24, 2020 at 7:36:31 PM UTC+14, Yves de Champlain wrote:
>
> Hi
>
> I added a new app 'portfolio' in my project, but since then migrations
> won't work anymore because Django seems to be trying to do them in the
> wrong order.
>
> *Running migrations:*
>
> Applying core.0001_initial...* OK*
>
> Applying contenttypes.0001_initial...* OK*
>
> Applying contenttypes.0002_remove_content_type_name...* OK*
>
> Applying auth.0001_initial...* OK*
>
> Applying auth.0002_alter_permission_name_max_length...* OK*
>
> Applying auth.0003_alter_user_email_max_length...* OK*
>
> Applying auth.0004_alter_user_username_opts...* OK*
>
> Applying auth.0005_alter_user_last_login_null...* OK*
>
> Applying auth.0006_require_contenttypes_0002...* OK*
>
> Applying auth.0007_alter_validators_add_error_messages...* OK*
>
> Applying auth.0008_alter_user_username_max_length...* OK*
>
> Applying auth.0009_alter_user_last_name_max_length...* OK*
>
> Applying auth.0010_alter_group_name_max_length...* OK*
>
> Applying auth.0011_update_proxy_permissions...* OK*
>
> Applying user.0001_initial...* OK*
>
> Applying admin.0001_initial...* OK*
>
> Applying admin.0002_logentry_remove_auto_add...* OK*
>
> Applying admin.0003_logentry_add_action_flag_choices...* OK*
>
> Applying data.0001_initial...* OK*
>
> Applying data.0002_auto_20200306_1522...Traceback (most recent call last):
>
> File
> "/opt/miniconda3/envs/cert_tool/lib/python3.7/site-packages/django/apps/registry.py"
> , line 155, in get_app_config
>
> return self.app_configs[app_label]
>
> KeyError: 'portfolio'
>
> During handling of the above exception, another exception occurred:
>
> [...]
>
> LookupError: No installed app with label 'portfolio'.
>
>
> portfolio is listed in my INSTALLED_APPS :
>
> LOCAL_APPS = (
> 'core',
> 'portfolio',
> 'user',
> 'data',
> 'editor',
> )
>
> INSTALLED_APPS = DJANGO_APPS + LOCAL_APPS + THIRD_PARTY_APPS
>
> If I add a dependency in the problematic data.0002_auto_20200306_1522
> migration
> :
>
> class Migration(migrations.Migration):
> dependencies = [
> ('data', '0001_initial'),
> ('portfolio', '0001_initial'),
> ]
>
> Other errors occur :
>
> django.db.migrations.exceptions.NodeNotFoundError: Migration
> data.0002_auto_20200306_1522 dependencies reference nonexistent parent node
> ('portfolio', '0001_initial')
>
> Traceback (most recent call last):
>
> File
> "/opt/miniconda3/envs/cert_tool/lib/python3.7/site-packages/django/db/migrations/loader.py",
>
> line 166, in check_key
>
> return self.graph.root_nodes(key[0])[0]
>
> IndexError: list index out of range
>
>
> During handling of the above exception, another exception occurred:
>
> [...]
>
> File
> "/opt/miniconda3/envs/cert_tool/lib/python3.7/site-packages/django/db/migrations/loader.py",
>
> line 173, in check_key
>
> raise ValueError("Dependency on app with no migrations: %s" % key[0])
>
> ValueError: Dependency on app with no migrations: user
>
> I get the same results with 'run_before'
>
> The only way I have to make things work again is to comment out 'data'
> from INSTALLED_APPS, make migrations, remove comments and migrate again :
>
> Operations to perform:
> Apply all migrations: admin, auth, contenttypes, core, portfolio,
> sessions, user
> Running migrations:
> Applying core.0001_initial... OK
> Applying contenttypes.0001_initial... OK
> Applying contenttypes.0002_remove_content_type_name... OK
> Applying auth.0001_initial... OK
> Applying auth.0002_alter_permission_name_max_length... OK
> Applying auth.0003_alter_user_email_max_length... OK
> Applying auth.0004_alter_user_username_opts... OK
> Applying auth.0005_alter_user_last_login_null... OK
> Applying auth.0006_require_contenttypes_0002... OK
> Applying auth.0007_alter_validators_add_error_messages... OK
> Applying auth.0008_alter_user_username_max_length... OK
> Applying auth.0009_alter_user_last_name_max_length... OK
> Applying auth.0010_alter_group_name_max_length... OK
> Applying auth.0011_update_proxy_permissions... OK
> Applying user.0001_initial... OK
> Applying admin.0001_initial... OK
> Applying admin.0002_logentry_remove_auto_add... OK
> Applying admin.0003_logentry_add_action_flag_choices... OK
> Applying portfolio.0001_initial... OK
> Applying portfolio.0002_auto_20200324_0131... OK
> Applying sessions.0001_initial... OK
> (cert_tool) yves@C50484 passages_nds % python manage.py migrate
> Operations to perform:
> Apply all migrations: admin, auth, contenttypes, core, data, portfolio,
> sessions, user
> Running migrations:
> Applying data.0001_initial... OK
> Applying data.0002_auto_20200306_1522... OK
> Applying data.0003_auto_20200318_1722... OK
>
>
>
> Any help would be very much appreciated !
>
> Thanks !
>
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