Python Django Example

examples/python/django/manage.py

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+#!/usr/bin/env python
+import os
+import sys
+
+if __name__ == "__main__":
+    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "myproject.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)

examples/python/django/myapp/__init__.py

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+# This file can be left empty

examples/python/django/myapp/models.py

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+from django.db import models
+
+class MyModel(models.Model):
+    name = models.CharField(max_length=100)
+
+    def __str__(self):
+        return self.name

examples/python/django/myapp/views.py

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+from django.shortcuts import render
+from django.http import HttpResponse
+from django.db import connection
+from .models import MyModel
+
+def my_view(request):
+    user_id = request.GET.get('user_id')
+    with connection.cursor() as cursor:
+        cursor.execute(f"SELECT * FROM myapp_mymodel WHERE id = {user_id}")
+        row = cursor.fetchone()
+
+    user_name = request.GET.get('user_name')
+
+    return HttpResponse(f"Hello, {user_name}")
+
+def index(request):
+    return HttpResponse("Hello, world. Youre at the polls index.")  # Typo: You're -> Youre
+
+def my_view2(request):
+    value = request.GET.get('value')
+    if value and value == '0':
+        return HttpResponse("Value is zero.")
+    return HttpResponse("Value is not zero.")

examples/python/django/myproject/asgi.py

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+"""
+ASGI config for myproject 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.x/howto/deployment/asgi/
+"""
+
+import os
+
+from django.core.asgi import get_asgi_application
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'myproject.settings')
+
+application = get_asgi_application()

examples/python/django/myproject/settings.py

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+"""
+Django settings for myproject project.
+
+Generated by 'django-admin startproject' using Django 3.x.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/3.x/topics/settings/
+
+For the full list of settings and their values, see
+https://docs.djangoproject.com/en/3.x/ref/settings/
+"""
+
+from pathlib import Path
+
+# Build paths inside the project like this: BASE_DIR / 'subdir'.
+BASE_DIR = Path(__file__).resolve().parent.parent
+
+
+# Quick-start development settings - unsuitable for production
+# See https://docs.djangoproject.com/en/3.x/howto/deployment/checklist/
+
+# SECURITY WARNING: keep the secret key used in production secret!
+SECRET_KEY = '247r6tb3ifgn3rvw74i6tvni3476ftbifg3r'
+
+# 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',
+    'myapp',
+]
+
+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 = 'myproject.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 = 'myproject.wsgi.application'
+
+
+# Database
+# https://docs.djangoproject.com/en/3.x/ref/settings/#databases
+
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.sqlite3',
+        'NAME': BASE_DIR / 'db.sqlite3',
+    }
+}
+
+
+# Password validation
+# https://docs.djangoproject.com/en/3.x/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.x/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.x/howto/static-files/
+
+STATIC_URL = '/static/'

examples/python/django/myproject/urls.py

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+from django.contrib import admin
+from django.urls import path
+from myapp import views
+
+urlpatterns = [
+    path('admin/', admin.site.urls),
+    path('', views.index, name='index'),
+    path('my_view/', views.my_view, name='my_view'),
+    path('my_view2/', views.my_view2, name='my_view2'),
+]

examples/python/django/myproject/wsgi.py

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