inital commit

tests/manage.py

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+#!/usr/bin/env python
+"""Django's command-line utility for administrative tasks."""
+import os
+import sys
+
+
+def main():
+    os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'testproject.settings')
+    try:
+        from django.core.management import execute_from_command_line
+    except ImportError as exc:
+        raise ImportError(
+            "Couldn't import Django. Are you sure it's installed and "
+            "available on your PYTHONPATH environment variable? Did you "
+            "forget to activate a virtual environment?"
+        ) from exc
+    execute_from_command_line(sys.argv)
+
+
+if __name__ == '__main__':
+    main()

tests/market/admin.py

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+from django.contrib import admin
+
+from admin_confirm.admin import AdminConfirmMixin
+
+from .models import Item, Inventory, Shop
+
+
+class ItemAdmin(AdminConfirmMixin, admin.ModelAdmin):
+    list_display = ('name', 'price', 'currency')
+    change_needs_confirmation = True
+
+
+class InventoryAdmin(admin.ModelAdmin):
+    list_display = ('shop', 'item', 'quantity')
+
+
+class ShopAdmin(admin.ModelAdmin):
+    pass
+
+
+admin.site.register(Item, ItemAdmin)
+admin.site.register(Inventory, InventoryAdmin)
+admin.site.register(Shop, ShopAdmin)

tests/market/apps.py

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+from django.apps import AppConfig
+
+
+class MarketConfig(AppConfig):
+    name = 'market'

tests/market/migrations/0001_initial.py

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+# Generated by Django 3.0.10 on 2020-10-31 20:41
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Item',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=120)),
+                ('price', models.DecimalField(decimal_places=2, max_digits=5)),
+                ('currency', models.CharField(choices=[('CAD', 'CAD'), ('USD', 'USD')], max_length=3)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Stock',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('quantity', models.PositiveIntegerField()),
+                ('item', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='all_stock', to='market.Item')),
+            ],
+        ),
+    ]

tests/market/migrations/0002_auto_20201031_2057.py

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+# Generated by Django 3.0.10 on 2020-10-31 20:57
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('market', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Inventory',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('quantity', models.PositiveIntegerField()),
+                ('item', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='market.Item')),
+            ],
+            options={
+                'ordering': ['shop', 'item__name'],
+            },
+        ),
+        migrations.CreateModel(
+            name='Shop',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=120)),
+            ],
+        ),
+        migrations.DeleteModel(
+            name='Stock',
+        ),
+        migrations.AddField(
+            model_name='inventory',
+            name='shop',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='inventory', to='market.Shop'),
+        ),
+        migrations.AlterUniqueTogether(
+            name='inventory',
+            unique_together={('shop', 'item')},
+        ),
+    ]

tests/market/models.py

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+from django.db import models
+
+
+class Item(models.Model):
+    VALID_CURRENCIES = (
+        ('CAD', 'CAD'),
+        ('USD', 'USD'),
+    )
+    name = models.CharField(max_length=120)
+    price = models.DecimalField(max_digits=5, decimal_places=2)
+    currency = models.CharField(max_length=3, choices=VALID_CURRENCIES)
+
+    def __str__(self):
+        return self.name
+
+
+class Shop(models.Model):
+    name = models.CharField(max_length=120)
+
+    def __str__(self):
+        return self.name
+
+
+class Inventory(models.Model):
+    class Meta:
+        unique_together = ['shop', 'item']
+        ordering = ['shop', 'item__name']
+
+    shop = models.ForeignKey(to=Shop, on_delete=models.CASCADE, related_name='inventory')
+    item = models.ForeignKey(to=Item, on_delete=models.CASCADE)
+    quantity = models.PositiveIntegerField()

tests/market/tests.py

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+from django.test import TestCase
+
+# Create your tests here.

tests/market/views.py

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+from django.shortcuts import render
+
+# Create your views here.

tests/testproject/asgi.py

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+"""
+ASGI config for testproject project.
+
+It exposes the ASGI callable as a module-level variable named ``application``.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/3.0/howto/deployment/asgi/
+"""
+
+import os
+
+from django.core.asgi import get_asgi_application
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'testproject.settings')
+
+application = get_asgi_application()

tests/testproject/settings.py

@@ -0,0 +1,124 @@
+"""
+Django settings for testproject project.
+
+Generated by 'django-admin startproject' using Django 3.0.10.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/3.0/topics/settings/
+
+For the full list of settings and their values, see
+https://docs.djangoproject.com/en/3.0/ref/settings/
+"""
+
+import os
+
+# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
+BASE_DIR = os.path.dirname(os.path.abspath(__file__))
+
+
+# Quick-start development settings - unsuitable for production
+# See https://docs.djangoproject.com/en/3.0/howto/deployment/checklist/
+
+# SECURITY WARNING: keep the secret key used in production secret!
+SECRET_KEY = '=yddl-40388w3e2hl$e8)revce=n67_idi8pfejtn3!+2%!_qt'
+
+# SECURITY WARNING: don't run with debug turned on in production!
+DEBUG = True
+
+ALLOWED_HOSTS = ['127.0.0.1']
+
+
+# Application definition
+
+INSTALLED_APPS = [
+    'django.contrib.admin',
+    'django.contrib.auth',
+    'django.contrib.contenttypes',
+    'django.contrib.sessions',
+    'django.contrib.messages',
+    'django.contrib.staticfiles',
+
+    'admin_confirm',
+
+    'tests.market',
+]
+
+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 = 'tests.testproject.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 = 'tests.testproject.wsgi.application'
+
+
+# Database
+# https://docs.djangoproject.com/en/3.0/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/3.0/ref/settings/#auth-password-validators
+
+AUTH_PASSWORD_VALIDATORS = [
+    {
+        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
+    },
+]
+
+
+# Internationalization
+# https://docs.djangoproject.com/en/3.0/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/3.0/howto/static-files/
+
+STATIC_URL = '/static/'

tests/testproject/urls.py

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+"""testproject URL Configuration
+
+The `urlpatterns` list routes URLs to views. For more information please see:
+    https://docs.djangoproject.com/en/3.0/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),
+]

tests/testproject/wsgi.py

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+"""
+WSGI config for testproject 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/3.0/howto/deployment/wsgi/
+"""
+
+import os
+
+from django.core.wsgi import get_wsgi_application
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'testproject.settings')
+
+application = get_wsgi_application()