django - Django 2.1.7: Makemigrations command result: "No change detected in app"

Question

(I am aware that a number of Django users have had the same issue.

I have looked at a number of solutions online but none has worked for me so far.)

I have set up my apps.py, settings.py and models.py files as explained in Django official tutorial (please see the 3 files below).

When I enter in the terminal:

$ python3 manage.py makemigrations munichliving_app

It returns:

No changes detected in app 'munichliving_app'

(file settings.py) in INSTALLED_APP --> I added and tested both one at a time: 'munichliving_app' and 'munichliving_app.apps.MunichLivingConfig'

apps.py file: https://pastebin.com/raw/qaYy1x44

setting.py file: https://pastebin.com/raw/cSsbfPsx

models.py: https://pastebin.com/raw/U0QeM16k

Django official tutorial states that I should see something along the lines of:

Migrations for 'polls':

polls/migrations/0001_initial.py:

- Create model Choice
- Create model Question
- Add field question to choice 

Thank you.

Answer 1

您的应用是munichliving（包含 的模块models.py），但您munichliving_app的INSTALLED_APPS设置中有。munichlivin_app是项目文件夹（包含 的文件夹）settings.py。它通常不包含模型，因此您通常不必将它添加到它INSTALLED_APPS或为它进行迁移。

替换'munichliving_app'为'munichliving'您的INSTALLED_APPS.

接下来，我会删除你的apps.py，因为它似乎没有被使用。如果您保留它，请将其更改为name='munichliving', then use'munichliving.apps.MunichLivingConfig' inINSTALLED_APPS`。

最后，创建迁移

./manage.py makemigrations munichliving

Answer 2

尝试这个：

python manage.py migrate --fake appname

或者删除你app中的migration文件夹，到数据库中删除django_migrationstable中的文件，然后再次迁移：

python manage.py makemigrations
python manage.py migrate