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Backend for tough-dev.school

CI Maintainability Test Coverage

Django-based production project, integrated with Tinkoff, Dashamail, Postmark, S3 and telegram. Frontend is built on vue.js in the separate repo.

Configuration

Configuration is stored in src/core/.env, for examples see src/core/.env.ci

Installing on a local machine

This project requires python 3.11. Deps are managed by Poetry.

Install requirements:

poetry install --no-root

Configure postgres and redis. It's convenient to use docker and docker-compose:

docker compose up -d

If you don't have access to de-anonymized db image use postgres:13.6-alpine in docker-compose.yml instead:

postgres:
    image: postgres:13.6-alpine
    ...

Run the server:

cp src/core/.env.ci src/core/.env

poetry run python src/manage.py migrate
poetry run python src/manage.py createsuperuser

make server

Testing:

# run lint
make lint

# run unit tests
make test

Backend Code requirements

Style

  • Obey django's style guide.
  • Configure your IDE to use flake8 for checking your python code. For running flake8 manualy, do cd src && flake8
  • Prefer English over your native language in comments and commit messages.
  • Commit messages should contain the unique id of issue they are linked to (refs #100500)
  • Every model and a model method should have a docstring.

Code organisation

  • KISS and DRY.
  • Obey django best practices
  • If you want to implement some business logic — make a service for that. Service examples: UserCreator, OrderCreator
  • No logic is allowed within the views or templates. Only services and models.
  • Use PEP-484 type hints when possible.
  • Prefer Manager methods over static methods.
  • Do not use signals for business logic. Signals are good only for notification purposes.
  • No l10n is allowed in python code, use django translation.