Django poll thing

djtut/mysite/mysite/settings.py

@@ -1,120 +1,65 @@
-"""
-Django settings for mysite project.
-
-Generated by 'django-admin startproject' using Django 1.11.29.
-
-For more information on this file, see
-https://docs.djangoproject.com/en/1.11/topics/settings/
-
-For the full list of settings and their values, see
-https://docs.djangoproject.com/en/1.11/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/1.11/howto/deployment/checklist/
-
-# SECURITY WARNING: keep the secret key used in production secret!
-SECRET_KEY = 'rbkosjwn!o^)&kb-fr^3^+y60bbz^76f#jt_7a%n1pt8jjd%bv'
-
-# SECURITY WARNING: don't run with debug turned on in production!
+SECRET_KEY = "rbkosjwn!o^)&kb-fr^3^+y60bbz^76f#jt_7a%n1pt8jjd%bv"
 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',
+    "polls.apps.PollsConfig",
+    "django.contrib.admin",
+    "django.contrib.auth",
+    "django.contrib.contenttypes",
+    "django.contrib.sessions",
+    "django.contrib.messages",
+    "django.contrib.staticfiles",
 ]
-
 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',
+    "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 = 'mysite.urls'
-
+ROOT_URLCONF = "mysite.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',
+        "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 = 'mysite.wsgi.application'
-
-
-# Database
-# https://docs.djangoproject.com/en/1.11/ref/settings/#databases
-
+WSGI_APPLICATION = "mysite.wsgi.application"
 DATABASES = {
-    'default': {
-        'ENGINE': 'django.db.backends.sqlite3',
-        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
+    "default": {
+        "ENGINE": "django.db.backends.postgresql",
+        "NAME": "mysite",
+        "USER": "mysite",
+        "HOST": "localhost",
+        "PORT": "5432",
+        "PASSWORD": "notsecurelol",
     }
 }
-
-
-# Password validation
-# https://docs.djangoproject.com/en/1.11/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',
+        "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/1.11/topics/i18n/
-
-LANGUAGE_CODE = 'en-us'
-
-TIME_ZONE = 'UTC'
-
+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/1.11/howto/static-files/
-
-STATIC_URL = '/static/'
+STATIC_URL = "/static/"

djtut/mysite/mysite/urls.py

@@ -1,21 +1,7 @@
-"""mysite URL Configuration
-
-The `urlpatterns` list routes URLs to views. For more information please see:
-    https://docs.djangoproject.com/en/1.11/topics/http/urls/
-Examples:
-Function views
-    1. Add an import:  from my_app import views
-    2. Add a URL to urlpatterns:  url(r'^$', views.home, name='home')
-Class-based views
-    1. Add an import:  from other_app.views import Home
-    2. Add a URL to urlpatterns:  url(r'^$', Home.as_view(), name='home')
-Including another URLconf
-    1. Import the include() function: from django.conf.urls import url, include
-    2. Add a URL to urlpatterns:  url(r'^blog/', include('blog.urls'))
-"""
-from django.conf.urls import url
+from django.conf.urls import include, url
 from django.contrib import admin
 
 urlpatterns = [
-    url(r'^admin/', admin.site.urls),
+    url("^polls/", include("polls.urls")),
+    url("^admin/", admin.site.urls),
 ]

djtut/mysite/polls/admin.py

@@ -0,0 +1,5 @@
+from django.contrib import admin
+
+from .models import Question
+
+admin.site.register(Question)

djtut/mysite/polls/apps.py

@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class PollsConfig(AppConfig):
+    name = "polls"

djtut/mysite/polls/migrations/0001_initial.py

@@ -0,0 +1,38 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.29 on 2020-03-14 01:39
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Choice',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('choice_text', models.CharField(max_length=200)),
+                ('votes', models.IntegerField(default=0)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Question',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('question_text', models.CharField(max_length=200)),
+                ('pub_date', models.DateTimeField(verbose_name='date published')),
+            ],
+        ),
+        migrations.AddField(
+            model_name='choice',
+            name='question',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='polls.Question'),
+        ),
+    ]

djtut/mysite/polls/models.py

@@ -0,0 +1,12 @@
+from django.db import models
+
+
+class Question(models.Model):
+    question_text = models.CharField(max_length=200)
+    pub_date = models.DateTimeField("date published")
+
+
+class Choice(models.Model):
+    question = models.ForeignKey(Question, on_delete=models.CASCADE)
+    choice_text = models.CharField(max_length=200)
+    votes = models.IntegerField(default=0)

djtut/mysite/polls/templates/polls/detail.html

@@ -0,0 +1,12 @@
+<h1>{{ question.question_text }}</h1>
+
+{% if error_message %}<p><strong>{{ error_mmessage }}</strong></p>{% endif %}
+
+<form action="{% url "polls:vote" question.id %}" method="post">
+  {% csrf_token %}
+  {% for choice in question.choice_set.all %}
+    <input type="radio" name="choice" id="choice{{ forloop.counter }}" value="{{ choice.id }}"/>
+    <label for="choice{{ forloop.counter }}">{{ choice.choice_text }}</label><br />
+  {% endfor %}
+  <input type="submit" value="Vote" />
+</form>

djtut/mysite/polls/templates/polls/index.html

@@ -0,0 +1,9 @@
+{% if latest_question_list %}
+  <ul>
+    {% for question in latest_question_list %}
+      <li><a href="{% url "polls:detail" question.id %}">{{ question.question_text }}</a></li>
+    {% endfor %}
+  </ul>
+{% else %}
+  <p>No polls are available.</p>
+{% endif %}

djtut/mysite/polls/templates/polls/results.html

@@ -0,0 +1,9 @@
+<h1>{{ question.question_text }}</h1>
+
+<ul>
+  {% for choice in question.choice_set.all %}
+    <li>{{ choice.choice_text }} -- {{ choice.votes }} vote{{ choice.votes|pluralize }}</li>
+  {% endfor %}
+</ul>
+
+<a href="{% url "polls:detail" question.id %}">Vote again?</a>

djtut/mysite/polls/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

djtut/mysite/polls/urls.py

@@ -0,0 +1,11 @@
+from django.conf.urls import url
+
+from . import views
+
+app_name = "polls"
+urlpatterns = [
+    url("^$", views.index, name="index"),
+    url("^(?P<question_id>[0-9]+)/$", views.detail, name="detail"),
+    url("^(?P<question_id>[0-9]+)/results/$", views.results, name="results"),
+    url("^(?P<question_id>[0-9]+)/vote/$", views.vote, name="vote"),
+]

djtut/mysite/polls/views.py

@@ -0,0 +1,39 @@
+from django.shortcuts import render, get_object_or_404
+from django.http import HttpResponseRedirect, HttpResponse
+from django.urls import reverse
+
+from .models import Question
+
+
+def index(request):
+    latest_question_list = Question.objects.order_by("-pub_date")[:5]
+    context = {
+        "latest_question_list": latest_question_list,
+    }
+    return render(request, "polls/index.html", context)
+
+
+def detail(request, question_id):
+    question = get_object_or_404(Question, pk=question_id)
+    return render(request, "polls/detail.html", {"question": question})
+
+
+def results(request, question_id):
+    question = get_object_or_404(Question, pk=question_id)
+    return render(request, "polls/results.html", {"question": question})
+
+
+def vote(request, question_id):
+    question = get_object_or_404(Question, pk=question_id)
+    try:
+        selected_choice = question.choice_set.get(pk=request.POST["choice"])
+    except (KeyError, Choice.DoesNotExist):
+        return render(
+            request,
+            "polls/vote.html",
+            {"question": question, "error_message": "You didn't select a choice."},
+        )
+    else:
+        selected_choice.votes += 1
+        selected_choice.save()
+        return HttpResponseRedirect(reverse("polls:results", args=(question.id,)))