Initial

.gitignore

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+env/
+.vscode/

api/admin.py

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+from django.contrib import admin
+from .models import Movie, Rating
+
+admin.site.register(Movie)
+admin.site.register(Rating)

api/apps.py

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+from django.apps import AppConfig
+
+
+class ApiConfig(AppConfig):
+    name = 'api'

api/migrations/0001_initial.py

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+# Generated by Django 3.0.6 on 2020-05-28 10:13
+
+from django.conf import settings
+import django.core.validators
+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='Movie',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('title', models.CharField(max_length=32)),
+                ('description', models.TextField(max_length=360)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Rating',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('stars', models.IntegerField(validators=[django.core.validators.MinValueValidator(1), django.core.validators.MaxValueValidator(5)])),
+                ('movie', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='api.Movie')),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+            options={
+                'unique_together': {('user', 'movie')},
+                'index_together': {('user', 'movie')},
+            },
+        ),
+    ]

api/models.py

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+from django.db import models
+from django.contrib.auth.models import User
+from django.core.validators import MaxValueValidator, MinValueValidator
+
+
+class Movie(models.Model):
+    title = models.CharField(max_length=32)
+    description = models.TextField(max_length=360)
+
+    def no_of_ratings(self):
+        ratings = Rating.objects.filter(movie=self)
+        return len(ratings)
+
+    def average_ratings(self):
+        ratings = Rating.objects.filter(movie=self)
+        average = 0
+        for rating in ratings:
+            average += rating.stars
+        if len(ratings) > 0:
+            return average / len(ratings)
+        return 0
+
+    def __str__(self):
+        return self.title
+
+
+class Rating(models.Model):
+    movie = models.ForeignKey(Movie, on_delete=models.CASCADE)
+    user = models.ForeignKey(User, on_delete=models.CASCADE)
+    stars = models.IntegerField(
+        validators=[MinValueValidator(1), MaxValueValidator(5)])
+
+    class Meta:
+        unique_together = (('user'), 'movie')
+        index_together = (('user'), 'movie')
+
+    def __str__(self):
+        return f"{self.movie.title} - {self.stars}"

api/serializers.py

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+from rest_framework import serializers
+from .models import Movie, Rating
+from django.contrib.auth.models import User
+from rest_framework.authtoken.models import Token
+
+
+class UserSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = User
+        fields = ["id", "username", "password"]
+        extra_kwargs = {'password': {'write_only': True, 'required': True}}
+
+    def create(self, validated_data):
+        user = User.objects.create_user(**validated_data)
+        Token.objects.create(user=user)
+        return user
+
+
+class MovieSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Movie
+        fields = ["id", "title", "description",
+                  "no_of_ratings", "average_ratings"]
+
+
+class RatingSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Rating
+        fields = ["id", "stars", "user", "movie"]

api/tests.py

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

api/urls.py

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+from django.contrib import admin
+from django.urls import path, include
+from rest_framework import routers
+from .views import MovieViewSet, RatingViewSet, UserViewSet
+
+router = routers.DefaultRouter()
+router.register('movies', MovieViewSet)
+router.register('ratings', RatingViewSet)
+router.register('users', UserViewSet)
+
+urlpatterns = [
+    path('', include(router.urls)),
+]

api/views.py

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+from django.contrib.auth.models import User
+from django.shortcuts import render
+from rest_framework import status, viewsets
+from rest_framework.authentication import TokenAuthentication
+from rest_framework.decorators import action
+from rest_framework.permissions import IsAuthenticated, AllowAny
+from rest_framework.response import Response
+
+from .models import Movie, Rating
+from .serializers import MovieSerializer, RatingSerializer, UserSerializer
+
+
+class UserViewSet(viewsets.ModelViewSet):
+    queryset = User.objects.all()
+    serializer_class = UserSerializer
+    permission_classes = (AllowAny,)
+
+class MovieViewSet(viewsets.ModelViewSet):
+    queryset = Movie.objects.all()
+    serializer_class = MovieSerializer
+    authentication_classes = (TokenAuthentication,)
+    permission_classes = (IsAuthenticated,)
+
+    @action(detail=True, methods=['POST'])
+    def rate_movie(self, request, pk=None):
+        if 'stars' in request.data:
+
+            movie = Movie.objects.get(id=pk)
+            stars = request.data['stars']
+            user = request.user
+
+            try:
+                rating = Rating.objects.get(user=user.id, movie=movie.id)
+                rating.stars = stars
+                rating.save()
+                serializer = RatingSerializer(rating, many=False)
+                response = {'message': f"Rating Updated",
+                            "result": serializer.data}
+                return Response(response, status=status.HTTP_200_OK)
+            except:
+                rating = Rating.objects.create(
+                    user=user, movie=movie, stars=stars)
+                serializer = RatingSerializer(rating, many=False)
+                response = {'message': f"Rating Created",
+                            "result": serializer.data}
+                return Response(response, status=status.HTTP_200_OK)
+
+        else:
+            response = {'message': "stars field required"}
+            return Response(response, status=status.HTTP_400_BAD_REQUEST)
+
+
+class RatingViewSet(viewsets.ModelViewSet):
+    queryset = Rating.objects.all()
+    serializer_class = RatingSerializer
+    authentication_classes = (TokenAuthentication,)
+    permission_classes = (IsAuthenticated,)
+
+    def update(self, request, *args, **kwargs):
+        response = {'message': "Can't update rating like that"}
+        return Response(response, status=status.HTTP_400_BAD_REQUEST)
+
+    def create(self, request, *args, **kwargs):
+        response = {'message': "Can't update rating like that"}
+        return Response(response, status=status.HTTP_400_BAD_REQUEST)

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', 'movierater.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()

movierater/asgi.py

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+"""
+ASGI config for movierater 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', 'movierater.settings')
+
+application = get_asgi_application()

movierater/settings.py

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+"""
+Django settings for movierater project.
+
+Generated by 'django-admin startproject' using Django 3.0.6.
+
+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.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 = 'ss&*9xr7jag^*hjlk=3t=uvh&5pg&5*vl@-^!5=b6pm4&g==eo'
+
+# SECURITY WARNING: don't run with debug turned on in production!
+DEBUG = True
+
+ALLOWED_HOSTS = ['10.6.9.67']
+
+
+# Application definition
+
+INSTALLED_APPS = [
+    'django.contrib.admin',
+    'django.contrib.auth',
+    'django.contrib.contenttypes',
+    'django.contrib.sessions',
+    'django.contrib.messages',
+    'django.contrib.staticfiles',
+    'rest_framework',
+    'rest_framework.authtoken',
+    'corsheaders',
+    'api',
+]
+
+MIDDLEWARE = [
+    'django.middleware.security.SecurityMiddleware',
+    'django.contrib.sessions.middleware.SessionMiddleware',
+    'django.middleware.common.CommonMiddleware',
+    'corsheaders.middleware.CorsMiddleware',
+    'django.middleware.csrf.CsrfViewMiddleware',
+    'django.contrib.auth.middleware.AuthenticationMiddleware',
+    'django.contrib.messages.middleware.MessageMiddleware',
+    'django.middleware.clickjacking.XFrameOptionsMiddleware',
+]
+
+ROOT_URLCONF = 'movierater.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 = 'movierater.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'),
+    }
+}
+
+REST_FRAMEWORK = {
+    'DEFAULT_PERMISSION_CLASSES': (
+        'rest_framework.permissions.IsAuthenticated',
+    )
+}
+
+# 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/'
+
+
+CORS_ORIGIN_WHITELIST = (
+    'http://localhost',
+    'http://10.6.9.67:3000',
+    'http://10.6.9.76:8000',
+)

movierater/urls.py

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+from django.contrib import admin
+from django.urls import path, include
+from rest_framework.authtoken.views import obtain_auth_token
+
+urlpatterns = [
+    path('admin/', admin.site.urls),
+    path('api/', include('api.urls')),
+    path('auth/', obtain_auth_token)
+]

movierater/wsgi.py

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+"""
+WSGI config for movierater 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', 'movierater.settings')
+
+application = get_wsgi_application()