Programming

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====== Preparing a Django project ======
===== Pipeline =====


<code>

poetry init

poetry add django

poetry run django-admin startproject {project} .

- fix directory generation -

touch README.md

- copy the .gitignore -

git init

git add -A 

git commit -m "first commit"

git remote add origin {url}

git push -u origin master

- move settings to an inner package, renaming the file to 'default.py' -

- Add a develop.py file -

- In settings\__init__.py and in settings\develop.py add the line: from .default import * a

- Change BASE_DIR like this: BASE_DIR = Path(__file__).resolve().parent.parent.parent

- Add import os

- Change: ALLOWED_HOSTS = ['0.0.0.0']

poetry add whitenoise

- Configure whitenoise

- Add STATIC_ROOT = os.path.join(BASE_DIR, 'static')

poetry env list --full-path

- Change the config for running in that path: manage.py runserver 0.0.0.0:8000 --nostatic . Also add the DJANGO_SETTINGS_MODULE envvar as {project}.settings.develop

poetry add psycopg2-binary

poetry add gunicorn

mkdir docker

- Add the docker files

docker-compose up postgres12

docker exec -ti --user postgres postgres12 createdb {project}

- Change the database configuration:

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql',
        'NAME': '{project name}',
        'USER': 'postgres',
        'PASSWORD': 'mysecretpassword',
        'HOST': os.environ.get('DB_HOST', '127.0.0.1'),
        'TEST': {
            'NAME': '{project_name_test}',
        }
    }
}

ln -s ../daauth/daauth daauth

- Remove admin from urls.py and from settings -

- Add models.py, views.py and the package migrations. Also the apps.py. - 

- Add to INSTALLED_APPS: daauth & {project}

- Add the next lines to settings/default.py:
AUTH_USER_MODEL = '{project}.User'
LOGIN_REDIRECT_URL = '/'

python manage.py migrate

mkddir -p static/styles/sass

touch static/styles/sass/main.scss static/styles/sass/stylesheet.scss

- Add @import "stylesheet"; to main.scss

sass --watch static/styles/sass/main.scss:static/styles/stylesheet.css

- Add to repository those last files

git commit

mkdir -p {project}/templates

touch {project}/templates/base.html




</code>


===== Concrete =====
==== .gitignore ====

<code>
*.pyc
.DS_Store
env
venv
.idea/**
node_modules
*.sqlite3
*.pyc
**/__pycache__/*
**/.sass-cache/*
**/.env
**/elm-stuff/**
</code>

<code>
strit/migrations/**
!strit/migrations/__init__.py

strit/settings/**
!strit/settings/default.py
!strit/settings/__init__.py

daauth
/daauth/
</code>

==== Whitenoise ====

  * http://whitenoise.evans.io/en/stable/#quickstart-for-django-apps

==== app.Dockerfile ====

<code>
FROM python:3.9-alpine
ENV PYTHONUNBUFFERED 1

ARG http_proxy
ENV https_proxy=$http_proxy
ENV http_proxy=$http_proxy
ENV HTTP_PROXY=$http_proxy
ENV HTTPS_PROXY=$http_proxy

RUN apk update
RUN apk add --no-cache python3-dev libffi-dev postgresql-libs postgresql-dev build-base cairo cairo-dev pango pango-dev fontconfig ttf-dejavu ttf-freefont
RUN apk add --virtual build-deps gcc python3-dev musl-dev
RUN apk add jpeg-dev zlib-dev freetype-dev lcms2-dev openjpeg-dev tiff-dev tk-dev tcl-dev py-pillow
RUN apk add git


RUN mkdir -p /srv/app
WORKDIR /srv

RUN pip install --upgrade pip
RUN pip install poetry
COPY pyproject.toml /srv/pyproject.toml
COPY poetry.lock /srv/poetry.lock
RUN poetry install

CMD poetry run gunicorn strit.wsgi --bind 0.0.0.0:8000
</code>

==== docker-compose.yml ====
<code>
version: "3.3"

services:
  postgres12:
    container_name: postgres12
    image: postgres:12
    volumes:
      - /srv/data/pg12:/var/lib/postgresql/data/
    environment:
      - POSTGRES_PASSWORD=mysecretpassword
    ports:
      - 5432:5432
  {project}:
    build:
      context: ..
      dockerfile: docker/app.Dockerfile
    ports:
      - 8000:8000
    container_name: {project}
    depends_on:
      - postgres12
    environment:
      - DB_HOST=postgres12
    volumes:
      - ..:/srv
    command: poetry run gunicorn {project}.wsgi --bind 0.0.0.0:8000
</code>

==== apps.py ====
<code>
from django.apps import AppConfig


class {Project}Config(AppConfig):
    name = '{project}'
</code>

==== models.py ====
<code>
from django.db import models
from daauth.models import BaseUser


class User(BaseUser):
    class Meta:
        db_table = "users"
</code>

==== base.html ====

  * http://htmlshell.com/

<code>
<!DOCTYPE html>
<!--[if lte IE 6]><html class="preIE7 preIE8 preIE9"><![endif]-->
<!--[if IE 7]><html class="preIE8 preIE9"><![endif]-->
<!--[if IE 8]><html class="preIE9"><![endif]-->
<!--[if gte IE 9]><!--><html><!--<![endif]-->
 {% load dutils %}
  <head>
    <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
  <meta name="viewport" content="width=device-width,initial-scale=1">
    <title>title</title>
  <meta name="author" content="name">
  <meta name="description" content="description here">
  <meta name="keywords" content="keywords,here">
  <link rel="stylesheet" href="{% dstatic 'styles/stylesheet.css' %}" type="text/css">
  </head>
  <body>
    aaaaa
  </body>
</html>
</code>
Programming

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