answers/migrations/0001_initial.py

@@ -0,0 +1,29 @@
+# Generated by Django 3.1.1 on 2021-12-01 18:52
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('questions', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Answer',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('description', models.TextField()),
+                ('is_correct', models.BooleanField(default=False)),
+                ('question', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='answers', to='questions.question')),
+            ],
+        ),
+        migrations.AddConstraint(
+            model_name='answer',
+            constraint=models.UniqueConstraint(condition=models.Q(is_correct=True), fields=('question',), name='only_one_correct_answer'),
+        ),
+    ]

answers/models.py

@@ -0,0 +1,27 @@
+from django.db import models
+from django.db.models import Q
+from django.db.models import UniqueConstraint
+
+
+class Answer(models.Model):
+    question = models.ForeignKey(
+        "questions.Question",
+        on_delete=models.CASCADE,
+        null=False,
+        related_name="answers"
+    )
+    description = models.TextField()
+    is_correct = models.BooleanField(default=False)
+
+    def get_secret_answer(self):
+        return {
+            "id": self.id,
+            "description": self.description,
+        }
+
+    class Meta:
+        constraints = [UniqueConstraint(
+            fields=["question"],
+            condition=Q(is_correct=True),
+            name="only_one_correct_answer"
+        )]

answers/serializers.py

@@ -0,0 +1,14 @@
+from rest_framework import serializers
+
+from answers.models import Answer
+
+
+class AnswerSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Answer
+        fields = (
+            "id",
+            "description",
+            "is_correct",
+            "question"
+        )

answers/urls.py

@@ -0,0 +1,8 @@
+from rest_framework.routers import DefaultRouter
+
+from answers.views import AnswerModelViewSet
+
+router = DefaultRouter()
+router.register("items", AnswerModelViewSet)
+
+urlpatterns = router.urls

answers/views.py

@@ -0,0 +1,9 @@
+from rest_framework import viewsets
+
+from answers.models import Answer
+from answers.serializers import AnswerSerializer
+
+
+class AnswerModelViewSet(viewsets.ModelViewSet):
+    serializer_class = AnswerSerializer
+    queryset = Answer.objects.all()

config/asgi.py

@@ -0,0 +1,16 @@
+"""
+ASGI config for testMe 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/3.1/howto/deployment/asgi/
+"""
+
+import os
+
+from django.core.asgi import get_asgi_application
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'config.settings')
+
+application = get_asgi_application()

config/settings.py

@@ -0,0 +1,189 @@
+import json
+import os
+"""
+Django settings for config project.
+
+Generated by 'django-admin startproject' using Django 3.1.1.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/3.1/topics/settings/
+
+For the full list of settings and their values, see
+https://docs.djangoproject.com/en/3.1/ref/settings/
+"""
+
+from pathlib import Path
+
+BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+
+secrets = BASE_DIR + "/secrets.json"
+
+with open(secrets) as f:
+    keys = json.loads(f.read())
+
+
+def get_secret(setting, keys=keys):
+    return keys[setting]
+
+# Quick-start development settings - unsuitable for production
+# See https://docs.djangoproject.com/en/3.1/howto/deployment/checklist/
+
+# SECURITY WARNING: keep the secret key used in production secret!
+SECRET_KEY = get_secret("SECRET_KEY")
+
+# SECURITY WARNING: don't run with debug turned on in production!
+DEBUG = get_secret("DEBUG")
+
+ALLOWED_HOSTS = get_secret("ALLOWED_HOSTS")
+
+
+# Application definition
+
+INSTALLED_APPS = [
+    'django.contrib.auth',
+    'django.contrib.contenttypes',
+    'django.contrib.staticfiles',
+    "django.contrib.gis",
+    "rest_framework",
+    "rest_framework_simplejwt",
+
+    "users",
+    "trials",
+    "answers",
+    "questions"
+]
+
+MIDDLEWARE = [
+    'django.middleware.security.SecurityMiddleware',
+    "corsheaders.middleware.CorsMiddleware",
+    # "`debug_toolbar.middleware.DebugToolbarMiddleware`",
+    'django.middleware.common.CommonMiddleware',
+    'django.middleware.clickjacking.XFrameOptionsMiddleware',
+]
+
+ROOT_URLCONF = get_secret("ROOT_URLCONF")
+
+TEMPLATES = [
+    {
+        'BACKEND': 'django.template.backends.django.DjangoTemplates',
+        'DIRS': os.path.join(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 = 'config.wsgi.application'
+
+# User model
+AUTH_USER_MODEL = "users.User"
+
+# Database
+# https://docs.djangoproject.com/en/3.1/ref/settings/#databases
+
+DATABASES = {
+    'default': {
+        "ENGINE": "django.contrib.gis.db.backends.postgis",
+        "NAME": get_secret("DB_NAME"),
+        "USER": get_secret("DB_USER"),
+        "PASSWORD": get_secret("DB_PASSWORD"),
+        "HOST": get_secret("DB_HOST"),
+        "PORT": get_secret("DB_PORT"),
+    }
+}
+
+REST_FRAMEWORK = {
+    "DEFAULT_PERMISSION_CLASSES": (
+        # "rest_framework.permissions.IsAuthenticated",
+    ),
+    "DEFAULT_AUTHENTICATION_CLASSES": (
+        # "rest_framework_simplejwt.authentication.JWTAuthentication",
+    ),
+    "DEFAULT_PAGINATION_CLASS": "rest_framework.pagination.LimitOffsetPagination",
+    "DEFAULT_FILTER_BACKENDS": (
+        "django_filters.rest_framework.DjangoFilterBackend",
+        "rest_framework.filters.SearchFilter",
+        "rest_framework.filters.OrderingFilter",
+    ),
+    "NON_FIELD_ERRORS_KEY": "message",
+    'DEFAULT_THROTTLE_CLASSES': [
+        'rest_framework.throttling.AnonRateThrottle',
+        'rest_framework.throttling.UserRateThrottle'
+    ],
+    'DEFAULT_THROTTLE_RATES': {
+        'anon': '100/day',
+        'user': '10000/day'
+    },
+    "DEFAULT_SCHEMA_CLASS": "drf_spectacular.openapi.AutoSchema",
+}
+
+# Password validation
+# https://docs.djangoproject.com/en/3.1/ref/settings/#auth-password-validators
+
+DEVELOPMENT = get_secret("DEVELOPMENT")
+
+if not DEVELOPMENT:
+    REST_FRAMEWORK.update({
+        "DEFAULT_RENDERER_CLASSES": (
+            "djangorestframework_camel_case.render.CamelCaseJSONRenderer",
+            "djangorestframework_camel_case.render.CamelCaseBrowsableAPIRenderer",
+        ),
+        "DEFAULT_PARSER_CLASSES": (
+            "djangorestframework_camel_case.parser.CamelCaseJSONParser",
+            "djangorestframework_camel_case.parser.CamelCaseMultiPartParser",
+            "djangorestframework_camel_case.parser.CamelCaseFormParser",
+        ),
+        "JSON_UNDERSCOREIZE": {
+            "no_underscore_before_number": True,
+        },
+    })
+
+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/3.1/topics/i18n/
+
+LANGUAGE_CODE = "pl"
+
+TIME_ZONE = "Europe/Warsaw"
+
+USE_I18N = True
+
+USE_L10N = True
+
+USE_TZ = True
+
+
+# Static files (CSS, JavaScript, Images)
+# https://docs.djangoproject.com/en/3.1/howto/static-files/
+
+STATIC_URL = "/static/"
+MEDIA_ROOT = "/media/"
+STATICFILES_DIRS = (os.path.join(BASE_DIR, "static"),)
+STATIC_ROOT = os.path.join(BASE_DIR, "../static")
+CORS_ORIGIN_ALLOW_ALL = True
+
+CORS_ALLOW_HEADERS = ('content-disposition', 'accept-encoding',
+                      'content-type', 'accept', 'origin', 'authorization')
+
+MEDIA_URL = "/media/"

config/urls.py

@@ -0,0 +1,25 @@
+"""testMe URL Configuration
+
+The `urlpatterns` list routes URLs to views. For more information please see:
+    https://docs.djangoproject.com/en/3.1/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
+from django.urls import path
+
+urlpatterns = [
+    path('users/', include("users.urls")),
+    path('questions/', include("questions.urls")),
+    path('answers/', include("answers.urls")),
+    path('tests/', include("trials.urls")),
+]

config/wsgi.py

@@ -0,0 +1,16 @@
+"""
+WSGI config for testMe 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/3.1/howto/deployment/wsgi/
+"""
+
+import os
+
+from django.core.wsgi import get_wsgi_application
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'config.settings')
+
+application = get_wsgi_application()

questions/migrations/0001_initial.py

@@ -0,0 +1,25 @@
+# Generated by Django 3.1.1 on 2021-12-01 18:52
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('trials', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Question',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(default='', max_length=200)),
+                ('description', models.TextField()),
+                ('test', models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='questions', to='trials.test')),
+            ],
+        ),
+    ]

questions/models.py

@@ -0,0 +1,19 @@
+from django.db import models
+
+
+class Question(models.Model):
+    test = models.ForeignKey(
+        "trials.Test",
+        on_delete=models.SET_NULL,
+        null=True,
+        related_name="questions"
+    )
+    name = models.CharField(max_length=200, default="")
+    description = models.TextField()
+    points = models.PositiveSmallIntegerField(default=1)
+
+    def get_answers_secret(self):
+        return [
+            answer.get_secret_answer()
+            for answer in self.answers.all()
+        ]

questions/serializers.py

@@ -0,0 +1,21 @@
+from rest_framework import serializers
+
+from questions.models import Question
+
+
+class QuestionSerializer(serializers.ModelSerializer):
+
+    answers = serializers.SerializerMethodField()
+
+    def get_answers(self, instance: Question):
+        return instance.get_answers_secret()
+
+    class Meta:
+        model = Question
+        fields = (
+            "id",
+            "name",
+            "description",
+            "answers",
+            "test"
+        )

questions/urls.py

@@ -0,0 +1,8 @@
+from rest_framework.routers import DefaultRouter
+
+from questions.views import QuestionModelViewSet
+
+router = DefaultRouter()
+router.register("items", QuestionModelViewSet)
+
+urlpatterns = router.urls

questions/views.py

@@ -0,0 +1,9 @@
+from rest_framework import viewsets
+
+from questions.models import Question
+from questions.serializers import QuestionSerializer
+
+
+class QuestionModelViewSet(viewsets.ModelViewSet):
+    queryset = Question.objects.all()
+    serializer_class = QuestionSerializer

requirements.txt

@@ -0,0 +1,36 @@
+appdirs==1.4.4
+asgiref==3.4.1
+attrs==21.2.0
+botocore==1.21.15
+distlib==0.3.2
+Django==3.2.9
+django-cors-headers==3.10.0
+django-debug-toolbar==3.2.2
+django-filter==21.1
+djangorestframework==3.12.4
+djangorestframework-simplejwt==5.0.0
+drf-spectacular==0.21.0
+filelock==3.0.12
+GDAL==3.3.3
+git-remote-codecommit==1.15.1
+inflection==0.5.1
+jmespath==0.10.0
+jsonschema==4.2.1
+numpy==1.21.4
+pbr==5.6.0
+Pillow==8.4.0
+protobuf==3.17.3
+psycopg2-binary==2.9.2
+PyJWT==2.3.0
+pyrsistent==0.18.0
+python-dateutil==2.8.2
+pytz==2021.3
+PyYAML==6.0
+six==1.16.0
+sqlparse==0.4.2
+stevedore==3.3.0
+uritemplate==4.1.1
+urllib3==1.26.6
+virtualenv==20.4.7
+virtualenv-clone==0.5.4
+virtualenvwrapper==4.8.4

templates/generic_test.html

@@ -0,0 +1,48 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>{{ test.name }}</title>
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet"
+          integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous">
+    <style>
+
+        .test_title {
+            font-size: 40px;
+        }
+        .test_body {
+            width: 50%;
+        }
+        .question_title {
+            font-size: 20px;
+        }
+
+    </style>
+</head>
+<body>
+<div class="card">
+<div class="card-body test_body">
+    <div class="card-header test_title">
+        {{ test.name }}
+    </div>
+{% for question in test.questions.all %}
+
+    <div class="question_title">
+        {{ question.description }}
+    </div>
+
+    <div class="list-group">
+        {% for answer in question.answers.all %}
+            <label class="list-group-item">
+                <input class="form-check-input me-1" type="radio" name={{ question.id }} value="">
+                {{ answer.description }}
+            </label>
+        {% endfor %}
+    </div>
+
+{% endfor %}
+</div>
+</div>
+
+</body>
+</html>

trials/migrations/0001_initial.py

@@ -0,0 +1,21 @@
+# Generated by Django 3.1.1 on 2021-12-01 18:52
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Test',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=100)),
+            ],
+        ),
+    ]

trials/models.py

@@ -0,0 +1,26 @@
+from django.db import models
+
+
+class Test(models.Model):
+    name = models.CharField(max_length=100)
+    passing_score = models.PositiveSmallIntegerField()
+
+    def get_score(self, answers):
+        """
+        [
+            {
+                "question": 1,
+                "answer": 1
+            },
+            {
+                "question": 2,
+                "answer": 1
+            }
+        ]
+        """
+        points = 0
+        for answer in answers:
+            question = self.questions.get(id=answer["question"])
+            if question.answers.get(id=answer["answer"]).is_correct:
+                points += question.points
+        return points

trials/serializers.py

@@ -0,0 +1,18 @@
+from rest_framework import serializers
+
+from questions.serializers import QuestionSerializer
+from trials.models import Test
+
+
+class TestSerializer(serializers.ModelSerializer):
+
+    questions = QuestionSerializer(many=True, required=False)
+
+    class Meta:
+        model = Test
+        fields = (
+            "id",
+            "name",
+            "passing_score",
+            "questions"
+        )

trials/urls.py

@@ -0,0 +1,16 @@
+from django.urls import path
+from rest_framework.routers import DefaultRouter
+
+from trials.views import TestModelViewSet
+from trials.views import TestTemplateView
+from trials.views import TestValidateAPIView
+
+router = DefaultRouter()
+router.register("items", TestModelViewSet)
+
+urlpatterns = [
+    path('<int:test_id>/show/', TestTemplateView.as_view()),
+    path('<int:test_id>/mark/', TestValidateAPIView.as_view())
+]
+
+urlpatterns += router.urls

trials/views.py

@@ -0,0 +1,50 @@
+from django.views.generic import TemplateView
+from rest_framework import views
+from rest_framework import viewsets
+from rest_framework.response import Response
+
+from config.settings import BASE_DIR
+from trials.models import Test
+from trials.serializers import TestSerializer
+
+
+class TestModelViewSet(viewsets.ModelViewSet):
+    queryset = Test.objects.all()
+    serializer_class = TestSerializer
+
+
+class TestTemplateView(TemplateView):
+
+    permission_classes = []
+    template_name = BASE_DIR + f"/templates/generic_test.html"
+
+    def get_queryset(self):
+        return Test.objects.all()
+
+    def get_context_data(self, test_id, **kwargs):
+        context = super().get_context_data(**kwargs)
+        context["test"] = self.get_queryset().filter(id=test_id).prefetch_related("questions__answers").first()
+        return context
+
+
+class TestValidateAPIView(views.APIView):
+    PASSED = "passed"
+    FAILED = "failed"
+    UNKNOWN = "unknown"
+
+    PASSED = {
+        True: PASSED,
+        False: FAILED
+    }
+
+    def get_score(self, test: Test, answers):
+        return test.get_score(answers)
+
+    def post(self, request, test_id, **kwargs):
+        test = Test.objects.get(id=test_id)
+        score = self.get_score(test, request.data["answers"])
+        status = score >= test.passing_score
+        return Response({
+            "status": self.PASSED.get(status, self.UNKNOWN),
+            "points": score
+        })

users/migrations/0001_initial.py

@@ -0,0 +1,32 @@
+# Generated by Django 3.1.1 on 2021-12-01 18:52
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='User',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('password', models.CharField(max_length=128, verbose_name='password')),
+                ('last_login', models.DateTimeField(blank=True, null=True, verbose_name='last login')),
+                ('first_name', models.CharField(max_length=100)),
+                ('last_name', models.CharField(max_length=100)),
+                ('email', models.EmailField(db_index=True, max_length=50, unique=True)),
+                ('is_active', models.BooleanField(default=False)),
+                ('confirmation_number', models.CharField(max_length=100)),
+                ('reset_code', models.CharField(max_length=100)),
+                ('avatar', models.ImageField(null=True, upload_to='avatars/')),
+            ],
+            options={
+                'ordering': ('id',),
+            },
+        ),
+    ]

users/models.py

@@ -0,0 +1,26 @@
+from django.contrib.auth.base_user import AbstractBaseUser
+from django.db import models
+
+
+class User(AbstractBaseUser):
+    first_name = models.CharField(max_length=100)
+    last_name = models.CharField(max_length=100)
+
+    email = models.EmailField(db_index=True, unique=True, max_length=50)
+    is_active = models.BooleanField(default=False)
+
+    confirmation_number = models.CharField(max_length=100)
+    reset_code = models.CharField(max_length=100)
+    avatar = models.ImageField(upload_to="avatars/", null=True)
+
+    USERNAME_FIELD = "email"
+
+    class Meta:
+        ordering = ("id", )
+    
+    def get_details(self):
+        return {
+            "first_name": self.first_name,
+            "last_name": self.last_name,
+            "email": self.email
+        }

users/serializers.py

@@ -0,0 +1,16 @@
+from rest_framework import serializers
+
+from users.models import User
+
+
+class UserSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = User
+        fields = (
+            "id",
+            "email",
+            "first_name",
+            "last_name",
+            "is_active",
+            "password"
+        )

users/urls.py

@@ -0,0 +1,16 @@
+from rest_framework.routers import DefaultRouter
+from django.urls import include
+from django.urls import path
+from users.views import UserModelViewSet
+from rest_framework_simplejwt.views import TokenObtainPairView
+from rest_framework_simplejwt.views import TokenRefreshView
+
+
+router = DefaultRouter()
+router.register("items", UserModelViewSet)
+
+urlpatterns = [
+    path('api/token/', TokenObtainPairView.as_view(), name='token_obtain_pair'),
+    path('api/token/refresh/', TokenRefreshView.as_view(), name='token_refresh'),
+]
+

users/views.py

@@ -0,0 +1,9 @@
+from rest_framework import viewsets
+
+from users.models import User
+from users.serializers import UserSerializer
+
+
+class UserModelViewSet(viewsets.ModelViewSet):
+    queryset = User.objects.all()
+    serializer_class = UserSerializer