Merge pull request #34 from realpython/django-migrations

Added example project for article 'Django Migrations: A Primer

Author: dbader

django-migrations/README.md

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+# Django Migrations: A Primer
+
+This directory contains the Django project created in the article [Django Migrations: A Primer](https://realpython.com/django-migrations-a-primer/).
+
+It is also used in the follow up article [Digging Deeper into Migrations](https://realpython.com/digging-deeper-into-migrations/).
+
+**Note:** The code in this directory has been reformatted with black and might therefore differ slightly in codestyle from the code originally generated by Django.
+
+## Installation
+
+This Project has been tested with Python 3.6 and Django 2.1, but you should be able to run it with an Django 2.x and a compatible Python. The recommended way to install it is using `pip` and a virtualenv:
+
+    $ python3 -m venv .venv
+    $ source .venv/bin/activate
+    (.venv) $ pip install "Django==2.*"

django-migrations/bitcoin_tracker/bitcoin_tracker/__init__.py

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+"""
+Django settings for bitcoin_tracker project.
+
+Generated by 'django-admin startproject' using Django 2.1.5.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/2.1/topics/settings/
+
+For the full list of settings and their values, see
+https://docs.djangoproject.com/en/2.1/ref/settings/
+"""
+
+import os
+
+# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
+BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+
+
+# Quick-start development settings - unsuitable for production
+# See https://docs.djangoproject.com/en/2.1/howto/deployment/checklist/
+
+# SECURITY WARNING: keep the secret key used in production secret!
+SECRET_KEY = "dyf)n0fejvk73!&k5_uq4ce7=e6-0+7sy)rm$w=@rg_!xk!5n3"
+
+# SECURITY WARNING: don't run with debug turned on in production!
+DEBUG = True
+
+ALLOWED_HOSTS = []
+
+
+# Application definition
+
+INSTALLED_APPS = [
+    "django.contrib.admin",
+    "django.contrib.auth",
+    "django.contrib.contenttypes",
+    "django.contrib.sessions",
+    "django.contrib.messages",
+    "django.contrib.staticfiles",
+    "historical_data",
+]
+
+MIDDLEWARE = [
+    "django.middleware.security.SecurityMiddleware",
+    "django.contrib.sessions.middleware.SessionMiddleware",
+    "django.middleware.common.CommonMiddleware",
+    "django.middleware.csrf.CsrfViewMiddleware",
+    "django.contrib.auth.middleware.AuthenticationMiddleware",
+    "django.contrib.messages.middleware.MessageMiddleware",
+    "django.middleware.clickjacking.XFrameOptionsMiddleware",
+]
+
+ROOT_URLCONF = "bitcoin_tracker.urls"
+
+TEMPLATES = [
+    {
+        "BACKEND": "django.template.backends.django.DjangoTemplates",
+        "DIRS": [],
+        "APP_DIRS": True,
+        "OPTIONS": {
+            "context_processors": [
+                "django.template.context_processors.debug",
+                "django.template.context_processors.request",
+                "django.contrib.auth.context_processors.auth",
+                "django.contrib.messages.context_processors.messages",
+            ]
+        },
+    }
+]
+
+WSGI_APPLICATION = "bitcoin_tracker.wsgi.application"
+
+
+# Database
+# https://docs.djangoproject.com/en/2.1/ref/settings/#databases
+
+DATABASES = {
+    "default": {
+        "ENGINE": "django.db.backends.sqlite3",
+        "NAME": os.path.join(BASE_DIR, "db.sqlite3"),
+    }
+}
+
+
+# Password validation
+# https://docs.djangoproject.com/en/2.1/ref/settings/#auth-password-validators
+
+AUTH_PASSWORD_VALIDATORS = [
+    {
+        "NAME": "django.contrib.auth.password_validation.UserAttributeSimilarityValidator"  # noqa
+    },
+    {"NAME": "django.contrib.auth.password_validation.MinimumLengthValidator"},
+    {
+        "NAME": "django.contrib.auth.password_validation.CommonPasswordValidator"  # noqa
+    },
+    {
+        "NAME": "django.contrib.auth.password_validation.NumericPasswordValidator"  # noqa
+    },
+]
+
+
+# Internationalization
+# https://docs.djangoproject.com/en/2.1/topics/i18n/
+
+LANGUAGE_CODE = "en-us"
+
+TIME_ZONE = "UTC"
+
+USE_I18N = True
+
+USE_L10N = True
+
+USE_TZ = True
+
+
+# Static files (CSS, JavaScript, Images)
+# https://docs.djangoproject.com/en/2.1/howto/static-files/
+
+STATIC_URL = "/static/"

django-migrations/bitcoin_tracker/bitcoin_tracker/settings.py

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+"""bitcoin_tracker URL Configuration
+
+The `urlpatterns` list routes URLs to views. For more information please see:
+    https://docs.djangoproject.com/en/2.1/topics/http/urls/
+Examples:
+Function views
+    1. Add an import:  from my_app import views
+    2. Add a URL to urlpatterns:  path('', views.home, name='home')
+Class-based views
+    1. Add an import:  from other_app.views import Home
+    2. Add a URL to urlpatterns:  path('', Home.as_view(), name='home')
+Including another URLconf
+    1. Import the include() function: from django.urls import include, path
+    2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
+"""
+from django.contrib import admin
+from django.urls import path
+
+urlpatterns = [path("admin/", admin.site.urls)]

django-migrations/bitcoin_tracker/bitcoin_tracker/urls.py

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+"""
+WSGI config for bitcoin_tracker project.
+
+It exposes the WSGI callable as a module-level variable named ``application``.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/2.1/howto/deployment/wsgi/
+"""
+
+import os
+
+from django.core.wsgi import get_wsgi_application
+
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "bitcoin_tracker.settings")
+
+application = get_wsgi_application()

django-migrations/bitcoin_tracker/bitcoin_tracker/wsgi.py

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+from django.contrib import admin  # noqa
+
+# Register your models here.

django-migrations/bitcoin_tracker/db.sqlite3

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+from django.apps import AppConfig
+
+
+class HistoricalDataConfig(AppConfig):
+    name = "historical_data"

django-migrations/bitcoin_tracker/historical_data/__init__.py

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+# Generated by Django 2.1.5 on 2019-02-05 20:23
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = []
+
+    operations = [
+        migrations.CreateModel(
+            name="PriceHistory",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("date", models.DateTimeField(auto_now_add=True)),
+                ("price", models.DecimalField(decimal_places=2, max_digits=7)),
+                ("volume", models.PositiveIntegerField()),
+            ],
+        )
+    ]