Init

.gitignore

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+/venv/
+/db.sqlite3
+/playground.py
+/playground2.py

manage.py

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+#!/usr/bin/env python
+"""Django's command-line utility for administrative tasks."""
+import os
+import sys
+
+
+def main():
+    """Run administrative tasks."""
+    os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'mysite.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()

mysite/asgi.py

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+"""
+ASGI config for mysite 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/4.2/howto/deployment/asgi/
+"""
+
+import os
+
+from django.core.asgi import get_asgi_application
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'mysite.settings')
+
+application = get_asgi_application()

mysite/settings.py

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+"""
+Django settings for mysite project.
+
+Generated by 'django-admin startproject' using Django 4.2.6.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/4.2/topics/settings/
+
+For the full list of settings and their values, see
+https://docs.djangoproject.com/en/4.2/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/4.2/howto/deployment/checklist/
+
+# SECURITY WARNING: keep the secret key used in production secret!
+SECRET_KEY = 'django-insecure-p0yr76f^19@hi$n)u3)w1lk35#ijlq8(@ulv#*0o8^x32b^1h&'
+
+# 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',
+    'polls.apps.PollsConfig',
+]
+
+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 = 'mysite.urls'
+
+TEMPLATES = [
+    {
+        'BACKEND': 'django.template.backends.django.DjangoTemplates',
+        'DIRS': [BASE_DIR / 'templates']
+        ,
+        '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/4.2/ref/settings/#databases
+
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.sqlite3',
+        'NAME': BASE_DIR / 'db.sqlite3',
+    }
+}
+
+# Password validation
+# https://docs.djangoproject.com/en/4.2/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/4.2/topics/i18n/
+
+LANGUAGE_CODE = 'de-de'
+
+TIME_ZONE = 'Europe/Berlin'
+
+USE_I18N = True
+
+USE_TZ = True
+
+# Static files (CSS, JavaScript, Images)
+# https://docs.djangoproject.com/en/4.2/howto/static-files/
+
+STATIC_URL = 'static/'
+
+# Default primary key field type
+# https://docs.djangoproject.com/en/4.2/ref/settings/#default-auto-field
+
+DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
+
+LOGIN_REDIRECT_URL = '/polls/'
+LOGOUT_REDIRECT_URL = '/polls/'
+
+

mysite/urls.py

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+"""
+URL configuration for mysite project.
+
+The `urlpatterns` list routes URLs to views. For more information please see:
+    https://docs.djangoproject.com/en/4.2/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, include
+
+urlpatterns = [
+    path('polls/', include('polls.urls')),
+    # ...
+    path('admin/', admin.site.urls),
+    path('accounts/', include('django.contrib.auth.urls')),
+]
+
+

mysite/wsgi.py

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+"""
+WSGI config for mysite 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/4.2/howto/deployment/wsgi/
+"""
+
+import os
+
+from django.core.wsgi import get_wsgi_application
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'mysite.settings')
+
+application = get_wsgi_application()

polls/admin.py

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+from django.contrib import admin
+from .models import Notice
+
+admin.site.register(Notice)
+

polls/apps.py

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+from django.apps import AppConfig
+
+
+class PollsConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'polls'

polls/forms.py

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+from django import forms
+import datetime
+
+
+class NoticeForm(forms.Form):
+    date_formats = ['%d.%m.%Y', '%d.%m.%y']
+    notice_title = forms.CharField(label='Titel', max_length=80)
+    notice_text = forms.CharField(label='Text', max_length=400)
+    pub_start = forms.DateField(label='Von',
+                                input_formats=date_formats,
+                                initial=datetime.date.today)
+    pub_end = forms.DateField(label='Bis',
+                              input_formats=date_formats,
+                              initial=datetime.date.today)

polls/migrations/0001_initial.py

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+# Generated by Django 4.2.6 on 2023-11-12 18:36
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Notice',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('notice_title', models.CharField(max_length=80)),
+                ('notice_text', models.CharField(max_length=400)),
+                ('pub_start', models.DateTimeField()),
+                ('pub_end', models.DateTimeField()),
+            ],
+        ),
+    ]
+
+

polls/models.py

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+from django.db import models
+
+
+class Notice(models.Model):
+    notice_title = models.CharField(max_length=80)
+    notice_text = models.CharField(max_length=400)
+    pub_start = models.DateTimeField()
+    pub_end = models.DateTimeField()
+

polls/tests.py

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

polls/urls.py

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+from django.urls import path
+from . import views
+
+urlpatterns = [
+    path('', views.index, name='index'),
+    path('new', views.new, name='new'),
+    path('delete/<int:deleteId>', views.delete, name='delete'),
+]
+
+

polls/views.py

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+
+from django.shortcuts import render, redirect
+from .models import Notice
+from django.utils import timezone
+from .forms import NoticeForm
+from django.contrib.auth.decorators import login_required
+
+
+@login_required
+def new(request):
+    if request.method == 'POST':
+        form = NoticeForm(request.POST)
+        if form.is_valid():
+            notice = Notice()
+            notice.notice_title = form.cleaned_data['notice_title']
+            notice.notice_text = form.cleaned_data['notice_text']
+            notice.pub_start = form.cleaned_data['pub_start']
+            notice.pub_end = form.cleaned_data['pub_end']
+            notice.save()
+            return redirect('index')
+    context = {'form': NoticeForm()}
+    return render(request, 'polls/edit.html', context)
+
+@login_required
+def delete(request, deleteId=None):
+    if deleteId is not None:
+        try:
+            notice = Notice.objects.get(pk=deleteId)
+            if request.user.id == notice.user_id:
+                notice.delete()
+        except:
+            pass
+    return redirect('index')
+
+def index(request):
+    notices = Notice.objects.all()
+    notices = notices.filter(pub_start__lte=timezone.now())
+    notices = notices.filter(pub_end__gte=timezone.now())
+    context = {'notices': notices}
+    return render(request, 'polls/index.html', context)
+

requirements.txt

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+Django>=4.2.6

templates/base.html

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+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport">
+    <title>{% block title %} Platzhalter {% endblock %}</title>
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-T3c6CoIi6uLrA9TneNEoa7RxnatzjcDSCmG1MXxSR1GAsXEV/Dwwykc2MPK8M2HN" crossorigin="anonymous">
+</head>
+<body>
+
+<nav class="navbar navbar-expand-lg bg-body-tertiary">
+  <div class="container-fluid">
+    <a class="navbar-brand" href="#">Navbar</a>
+    <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
+      <span class="navbar-toggler-icon"></span>
+    </button>
+    <div class="collapse navbar-collapse" id="navbarSupportedContent">
+      <ul class="navbar-nav me-auto mb-2 mb-lg-0">
+        <li class="nav-item">
+          <a class="nav-link active" aria-current="page" href="#">Home</a>
+        </li>
+        <li class="nav-item">
+          <a class="nav-link" href="#">Link</a>
+        </li>
+        <li class="nav-item dropdown">
+          <a class="nav-link dropdown-toggle" href="#" role="button" data-bs-toggle="dropdown" aria-expanded="false">
+            Dropdown
+          </a>
+          <ul class="dropdown-menu">
+            <li><a class="dropdown-item" href="#">Action</a></li>
+            <li><a class="dropdown-item" href="#">Another action</a></li>
+            <li><hr class="dropdown-divider"></li>
+            <li><a class="dropdown-item" href="#">Something else here</a></li>
+          </ul>
+        </li>
+        <li class="nav-item">
+          <a class="nav-link disabled" aria-disabled="true">Disabled</a>
+        </li>
+      </ul>
+      <form class="d-flex" role="search">
+        <input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
+        <button class="btn btn-outline-success" type="submit">Search</button>
+      </form>
+    </div>
+  </div>
+</nav>
+
+<div class="container">
+    {% block content %} Platzhalter {% endblock %}
+
+    {% if user.is_authenticated %}
+        <a href="{% url 'logout' %}" class="btn btn-primary">Abmelden</a>
+    {%  endif %}
+
+    {% if not user.is_authenticated %}
+        <a href="{% url 'login' %}" class="btn btn-primary">Anmelden</a>
+    {%  endif %}
+
+</div>
+
+
+
+<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-C6RzsynM9kWDrMNeT87bh95OGNyZPhcTNXj1NW7RuBCsyN/o0jlpcV8Qyq46cDfL" crossorigin="anonymous"></script>
+
+</body>
+</html>
+
+

templates/polls/edit.html

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+{% extends "base.html" %}
+
+{% block title %}Edit{% endblock %}
+
+{% block content %}
+    <h1>Neue Nachricht</h1>
+    <form method="POST">
+        {% csrf_token %}
+        {{ form.as_p }}
+        <input class="btn btn-primary"
+               type="submit"
+               value="Speichern">
+    </form>
+{% endblock %}
+
+
+
+

templates/polls/index.html

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+{% extends "base.html" %}
+
+{% block title %}News{% endblock %}
+
+{% block content %}
+    <div class="jumbotron">
+        <h1 class="display-4">News</h1>
+    </div>
+
+    {%  for notice in notices %}
+        <hr>
+        <h3>{{ notice.notice_title }}</h3>
+        <p>{{ notice.notice_text }}</p>
+
+        {% if user.is_staff %}
+            <p>
+                <a  href="{%  url 'delete' deleteId=notice.id %}"
+                    class="btn btn-danger">
+                    Meldung löschen
+                </a>
+            </p>
+        {% endif %}
+
+    {% endfor %}
+
+    <hr>
+
+    <p>
+        <a  href="{%  url 'new' %}"
+            class="btn btn-primary">
+            Neue Meldung erstellen
+        </a>
+    </p>
+
+
+{% endblock %}
+
+

templates/registration/login.html

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+{% extends "base.html" %}
+
+{% block title %}Anmeldung{% endblock %}
+
+{% block content %}
+
+    {% if form.errors %}
+        <p>Benutzername oder Passwort falsch.</p>
+    {% endif %}
+
+    {% if next %}
+        {% if user.is_authenticated %}
+            <p>Sie haben nicht die hierfür notwendige Berechtigung.</p>
+        {% else %}
+            <p>Bitte melden Sie sich an.</p>
+        {% endif %}
+    {% endif %}
+
+    <form method="post" action="{% url 'login' %}">
+        {% csrf_token %}
+        <table>
+            <tr>
+                <td>{{ form.username.label_tag }}</td>
+                <td>{{ form.username }}</td>
+            </tr>
+            <tr>
+                <td>{{ form.password.label_tag }}</td>
+                <td>{{ form.password }}</td>
+            </tr>
+        </table>
+
+        <input type="submit" value="Anmelden">
+        <input type="hidden" name="next" value="{{ next }}">
+    </form>
+
+    <p>
+        <a href="{% url 'password_reset' %}">Passwort vergessen?</a>
+    </p>
+
+{% endblock %}