First commit : model and services

chat/admin.py

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+from django.contrib import admin
+
+# Register your models here.
+from .models import App, Room, Message
+
+admin.site.register(App)
+admin.site.register(Room)
+admin.site.register(Message)

chat/apps.py

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

chat/migrations/0001_initial.py

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+# Generated by Django 4.1.1 on 2023-12-07 14:40
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='App',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=100)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Room',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=100)),
+                ('app', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='chat.app')),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Message',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('text', models.CharField(max_length=500)),
+                ('date', models.DateTimeField(verbose_name='date published')),
+                ('room', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='chat.room')),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+    ]

chat/migrations/0002_message_parent.py

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+# Generated by Django 4.1.1 on 2023-12-07 20:28
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('chat', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='message',
+            name='parent',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, to='chat.message'),
+        ),
+    ]

chat/models.py

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+from django.db import models
+from django.contrib.auth.models import User
+
+class App(models.Model):
+    name = models.CharField(max_length=100)
+
+    def __str__(self):
+        return self.name
+
+class Room(models.Model):
+    name = models.CharField(max_length=100)
+    app = models.ForeignKey(App, on_delete=models.CASCADE)
+
+    def __str__(self):
+        return self.name
+
+class Message(models.Model):
+    text = models.CharField(max_length=500)
+    date = models.DateTimeField("date published")
+    user = models.ForeignKey(User, on_delete=models.CASCADE)
+    room = models.ForeignKey(Room, on_delete=models.CASCADE)
+    parent = models.ForeignKey('self', null=True, on_delete=models.SET_NULL)
+
+    def __str__(self):
+        return self.text

chat/serializers.py

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+from django.contrib.auth.models import User
+from rest_framework import serializers
+from .models import App, Room, Message
+
+class AppSerializer(serializers.HyperlinkedModelSerializer):
+    class Meta:
+        model = App
+        fields = ['id', 'name']
+
+class RoomSerializer(serializers.HyperlinkedModelSerializer):
+    class Meta:
+        model = Room
+        fields = ['id', 'name']
+
+class MessageSerializer(serializers.HyperlinkedModelSerializer):
+    class Meta:
+        model = Message
+        fields = ['id', 'text', 'date']

chat/templates/chat/index.html

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+<h1>Rooms</h1>
+
+{% if rooms %}
+    <ul>
+    {% for room in rooms %}
+        <li><a href="room/{{ room.id }}/">{{ room.name }}</a></li>
+    {% endfor %}
+    </ul>
+{% else %}
+    <p>No rooms are available.</p>
+{% endif %}

chat/templates/chat/room.html

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+
+{% if room %}
+
+  <h1>{{ room.name }}</h1>
+
+  {% if messages %}
+      <ul>
+      {% for message in messages.all %}
+          <li>{{ message.text }}</li>
+      {% endfor %}
+      </ul>
+  {% else %}
+      <p>No message inside</p>
+  {% endif %}
+
+{% endif %}

chat/tests.py

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

chat/urls.py

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+from django.urls import path
+
+from . import views
+
+urlpatterns = [
+    path("", views.index, name="index"),
+    path("room/<int:room_id>/", views.room, name="room"),
+]

chat/views.py

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+
+from django.shortcuts import render
+from django.http import HttpResponse
+from .models import App, Room, Message
+from django.shortcuts import get_object_or_404, render
+from django.template import loader
+from rest_framework import viewsets
+from rest_framework import permissions
+from .serializers import AppSerializer, RoomSerializer, MessageSerializer
+
+# Create your views here.
+def index(request):
+    rooms = Room.objects.all()
+    template = loader.get_template("chat/index.html")
+    context = {
+        "rooms": rooms,
+    }
+    return render(request, "chat/index.html", context)
+
+def room(request, room_id):
+    room = get_object_or_404(Room, pk=room_id)
+    context = {
+        "room": room,
+        "messages": room.message_set,
+    }
+    return render(request, "chat/room.html", context)
+
+class AppViewSet(viewsets.ModelViewSet):
+    queryset = App.objects.all()
+    serializer_class = AppSerializer
+
+class RoomViewSet(viewsets.ModelViewSet):
+    queryset = Room.objects.all()
+    serializer_class = RoomSerializer
+
+class MessageViewSet(viewsets.ModelViewSet):
+    queryset = Message.objects.all()
+    serializer_class = MessageSerializer

enchant_server/asgi.py

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+"""
+ASGI config for enchant_server 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/4.1/howto/deployment/asgi/
+"""
+
+import os
+
+from django.core.asgi import get_asgi_application
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'enchant_server.settings')
+
+application = get_asgi_application()

enchant_server/settings.py

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+"""
+Django settings for enchant_server project.
+
+Generated by 'django-admin startproject' using Django 4.1.1.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/4.1/topics/settings/
+
+For the full list of settings and their values, see
+https://docs.djangoproject.com/en/4.1/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/4.1/howto/deployment/checklist/
+
+# SECURITY WARNING: keep the secret key used in production secret!
+SECRET_KEY = 'django-insecure-fw*y$0ozm)bmmm+e6(0d#+j7m(@(etgr@012g5%3@jsn3jtl1u'
+
+# SECURITY WARNING: don't run with debug turned on in production!
+DEBUG = True
+
+ALLOWED_HOSTS = []
+
+
+# Application definition
+
+INSTALLED_APPS = [
+    "chat.apps.ChatConfig",
+    'rest_framework',
+    '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',
+]
+
+ROOT_URLCONF = 'enchant_server.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 = 'enchant_server.wsgi.application'
+
+
+# Database
+# https://docs.djangoproject.com/en/4.1/ref/settings/#databases
+
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.sqlite3',
+        'NAME': BASE_DIR / 'db.sqlite3',
+    }
+}
+
+
+# Password validation
+# https://docs.djangoproject.com/en/4.1/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/4.1/topics/i18n/
+
+LANGUAGE_CODE = 'en-us'
+
+TIME_ZONE = 'UTC'
+
+USE_I18N = True
+
+USE_TZ = True
+
+
+# Static files (CSS, JavaScript, Images)
+# https://docs.djangoproject.com/en/4.1/howto/static-files/
+
+STATIC_URL = 'static/'
+
+# Default primary key field type
+# https://docs.djangoproject.com/en/4.1/ref/settings/#default-auto-field
+
+DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
+
+# Rest Framework configuration
+REST_FRAMEWORK = {
+    # Use Django's standard `django.contrib.auth` permissions,
+    # or allow read-only access for unauthenticated users.
+    'DEFAULT_PERMISSION_CLASSES': [
+        'rest_framework.permissions.DjangoModelPermissionsOrAnonReadOnly'
+    ]
+}

enchant_server/urls.py

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+"""enchant_server URL Configuration
+
+The `urlpatterns` list routes URLs to views. For more information please see:
+    https://docs.djangoproject.com/en/4.1/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 include, path
+from rest_framework import routers, serializers, viewsets
+from chat import views
+
+
+router = routers.DefaultRouter()
+router.register(r'apps', views.AppViewSet)
+router.register(r'rooms', views.RoomViewSet)
+router.register(r'messages', views.MessageViewSet)
+
+urlpatterns = [
+        path("chat/", include("chat.urls")),
+        path('admin/', admin.site.urls),
+        path('api/', include(router.urls)),
+        path('api-auth/', include('rest_framework.urls'))
+]

enchant_server/wsgi.py

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+"""
+WSGI config for enchant_server 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/4.1/howto/deployment/wsgi/
+"""
+
+import os
+
+from django.core.wsgi import get_wsgi_application
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'enchant_server.settings')
+
+application = get_wsgi_application()

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', 'enchant_server.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()