Completed all the tasks - Atharva Bhatt

api/admin.py

@@ -1,4 +1,5 @@
 from django.contrib import admin
-from .models import Todo
+from .models import Collaborator, Todo
 
-admin.site.register(Todo)
+admin.site.register(Todo)
+admin.site.register(Collaborator)

api/migrations/0003_collaborator.py

@@ -0,0 +1,24 @@
+# Generated by Django 3.0.7 on 2021-08-08 08:06
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('api', '0002_todo_creator'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Collaborator',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('collab', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+                ('todo', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='api.Todo')),
+            ],
+        ),
+    ]

api/models.py

@@ -7,4 +7,11 @@ class Todo(models.Model):
     title = models.CharField(max_length=255)
 
     def __str__(self):
-        return self.title
+        return self.title
+
+class Collaborator(models.Model):
+    todo = models.ForeignKey(Todo, on_delete=models.CASCADE)
+    collab = models.ForeignKey(User, on_delete=models.CASCADE) 
+
+    def __str__(self):
+        return self.collab.first_name +" "+ self.collab.last_name + "- " + self.todo.title

api/serializers.py

@@ -1,23 +1,9 @@
+from django.contrib.auth.models import User
 from rest_framework import serializers
-from .models import Todo
-
-
-"""
-TODO:
-Create the appropriate Serializer class(es) for implementing
-Todo GET (List and Detail), PUT, PATCH and DELETE.
-"""
-
+from .models import Todo, Collaborator
+from authentication.serializers import UserSerializer
 
 class TodoCreateSerializer(serializers.ModelSerializer):
-    """
-    TODO:
-    Currently, the /todo/create/ endpoint returns only 200 status code,
-    after successful Todo creation.
-
-    Modify the below code (if required), so that this endpoint would
-    also return the serialized Todo data (id etc.), alongwith 200 status code.
-    """
     def save(self, **kwargs):
         data = self.validated_data
         user = self.context['request'].user
@@ -27,3 +13,20 @@ def save(self, **kwargs):
     class Meta:
         model = Todo
         fields = ('id', 'title',)
+
+class TodoCollabSerializer(serializers.ModelSerializer):
+    collab_username = serializers.CharField(max_length=255, required=True)
+    def save(self, id, **kwargs):
+        data = self.validated_data
+        user = self.context['request'].user
+        username = data['collab_username']
+        collab = User.objects.filter(username=username)[0]
+        todo = Todo.objects.filter(creator=user, pk=id)[0]
+        if todo:
+            collaboration = Collaborator.objects.create(todo=todo, collab=collab)
+            return collaboration
+
+    class Meta:
+        model = Collaborator
+        fields = ('collab_username',)
+

api/urls.py

@@ -1,5 +1,5 @@
 from django.urls import path
-from .views import TodoCreateView
+from .views import TodoCreateView, TodoGetView, TodoOperationsView, TodoAddCollabView, TodoRemoveCollabView 
 
 """
 TODO:
@@ -9,4 +9,8 @@
 
 urlpatterns = [
     path('todo/create/', TodoCreateView.as_view()),
+    path('todo/', TodoGetView.as_view()),
+    path('todo/<int:id>/', TodoOperationsView.as_view()),
+    path('todo/<int:id>/add-collaborators/', TodoAddCollabView.as_view()),
+    path('todo/<int:id>/remove-collaborators/', TodoRemoveCollabView.as_view())
 ]

api/views.py

@@ -1,35 +1,125 @@
-from rest_framework import generics
+import re
+from django.contrib.auth.models import User
+from rest_framework import generics, serializers
 from rest_framework import permissions
 from rest_framework import status
+from rest_framework import response
 from rest_framework.response import Response
-from .serializers import TodoCreateSerializer
-from .models import Todo
-
-
-"""
-TODO:
-Create the appropriate View classes for implementing
-Todo GET (List and Detail), PUT, PATCH and DELETE.
-"""
-
+from .serializers import TodoCreateSerializer, TodoCollabSerializer
+from api.serializers import TodoCollabSerializer
+from .models import Todo, Collaborator
 
 class TodoCreateView(generics.GenericAPIView):
-    """
-    TODO:
-    Currently, the /todo/create/ endpoint returns only 200 status code,
-    after successful Todo creation.
-
-    Modify the below code (if required), so that this endpoint would
-    also return the serialized Todo data (id etc.), alongwith 200 status code.
-    """
+
     permission_classes = (permissions.IsAuthenticated, )
     serializer_class = TodoCreateSerializer
 
     def post(self, request):
-        """
-        Creates a Todo entry for the logged in user.
-        """
         serializer = self.get_serializer(data=request.data)
         serializer.is_valid(raise_exception=True)
         serializer.save()
-        return Response(status=status.HTTP_200_OK)
+        instance = Todo.objects.filter(creator=request.user,title=serializer.data['title'])
+        getTodo = self.get_serializer(instance.last())
+
+        return Response(getTodo.data,status=status.HTTP_200_OK)
+
+class TodoGetView(generics.GenericAPIView):
+
+    permission_classes = (permissions.IsAuthenticated, )
+    serializer_class = TodoCreateSerializer
+
+    def get(self, request):
+        todo=Todo.objects.filter(creator=request.user)
+        serializer1=self.get_serializer(todo,many=True)
+        todoCollab=Collaborator.objects.filter(collab=request.user) 
+        serializer2 = []
+        for collabs in todoCollab:
+            temp=self.get_serializer(collabs.todo)
+            serializer2.append(temp.data)
+        response_data = {
+            "owner": serializer1.data,
+            "collaborator": serializer2
+        }    
+        return Response(response_data,status=status.HTTP_200_OK)
+
+class TodoOperationsView(generics.GenericAPIView):
+
+    permission_classes = (permissions.IsAuthenticated, )
+    serializer_class = TodoCreateSerializer
+
+    def get(self, request, id):
+        todo = Todo.objects.filter(creator=request.user, pk=id)
+        if todo:
+            ownership = "owner"
+            title=todo[0].title    
+        else:
+            todo=Todo.objects.filter(pk=id)[0]
+            todoCollab=Collaborator.objects.filter(collab=request.user, todo=todo)[0] 
+            ownership = "collaborator"
+            title=todoCollab.todo.title
+        response_data = {
+            "ownership": ownership,
+            "id": id,
+            "title": title 
+        }
+        return Response(response_data, status=status.HTTP_200_OK)
+
+    def put(self, request, id):
+        todo = Todo.objects.filter(creator=request.user, pk=id)
+        if todo:
+            todo[0].title = request.data['title']
+            todo[0].save()
+            serializer = self.get_serializer(todo)
+        else:
+            todo=Todo.objects.filter(pk=id)[0]
+            todoCollab=Collaborator.objects.filter(collab=request.user, todo=todo)[0]
+            todoCollab.todo.title = request.data['title']
+            todoCollab.todo.save()
+            serializer = self.get_serializer(todoCollab.todo)
+        return Response(serializer.data, status=status.HTTP_200_OK)
+
+    def patch(self, request, id):
+        todo = Todo.objects.filter(creator=request.user, pk=id)
+        if todo:
+            todo[0].title = request.data['title']
+            todo[0].save()
+            serializer = self.get_serializer(todo)
+        else:
+            todo=Todo.objects.filter(pk=id)[0]
+            todoCollab=Collaborator.objects.filter(collab=request.user, todo=todo)[0]
+            todoCollab.todo.title = request.data['title']
+            todoCollab.todo.save()
+            serializer = self.get_serializer(todoCollab.todo)
+        return Response(serializer.data, status=status.HTTP_200_OK)
+
+    def delete(self, request, id):
+        todo = Todo.objects.filter(creator=request.user, pk=id)
+        if todo:
+            todo.delete()
+        else:
+            todo=Todo.objects.filter(pk=id)[0]
+            todoCollab=Collaborator.objects.filter(collab=request.user, todo=todo)[0]
+            todoCollab.todo.delete()
+        return Response(status=status.HTTP_204_NO_CONTENT)
+
+class TodoAddCollabView(generics.GenericAPIView):
+    permission_classes = (permissions.IsAuthenticated, )
+    serializer_class = TodoCollabSerializer
+
+    def post(self, request, id):
+        serializer = self.get_serializer(data=request.data)
+        serializer.is_valid(raise_exception=True)
+        serializer.save(id=id)
+        return Response(status=status.HTTP_201_CREATED)
+
+class TodoRemoveCollabView(generics.GenericAPIView):
+    permission_classes = (permissions.IsAuthenticated, )
+    serializer_class = TodoCollabSerializer
+
+    def post(self, request, id):
+        serializer = self.get_serializer(data=request.data)
+        serializer.is_valid(raise_exception=True)
+        todo = Todo.objects.filter(creator=request.user, pk=id)[0]
+        collab = User.objects.filter(username=request.data['collab_username'])[0]
+        Collaborator.objects.filter(todo=todo, collab=collab).delete()
+        return Response(status=status.HTTP_204_NO_CONTENT)

authentication/serializers.py

@@ -8,16 +8,39 @@ class TokenSerializer(serializers.Serializer):
 
 
 class LoginSerializer(serializers.Serializer):
-    # TODO: Implement login functionality
-    pass
+    username = serializers.CharField(max_length=255)
+    password = serializers.CharField(max_length=128, write_only=True)
 
+    def create(self, data):
+        data = self.validated_data
+        username = data['username']
+        password = data['password']
+        user = authenticate(username=username, password=password)
+        return user
 
 class RegisterSerializer(serializers.Serializer):
-    # TODO: Implement register functionality
-    pass
-
+    first_name = serializers.CharField(max_length=128, required=True)
+    last_name = serializers.CharField(max_length=128)
+    email = serializers.EmailField(max_length=None, min_length=None, allow_blank=False)
+    username = serializers.CharField(max_length=255, required=True)
+    password = serializers.CharField(max_length=128, required=True, write_only=True)
+
+    def create(self, data):
+        data = self.validated_data
+        first_name = data['first_name']
+        last_name = data['last_name']
+        email = data['email']
+        username = data['username']
+        password = data['password']
+        user = User.objects.create_user(username=username, email=email, password=password)
+        user.first_name = first_name
+        user.last_name = last_name
+        user.save()
+
+        user = authenticate(username=username, password=password)
+        return user
 
 class UserSerializer(serializers.ModelSerializer):
-    # TODO: Implement the functionality to display user details
-    pass
-
+    class Meta: 
+        model = User
+        fields = ['id','first_name','last_name','username','email'] 

authentication/views.py

@@ -3,40 +3,53 @@
 from rest_framework import status
 from rest_framework.response import Response
 from rest_framework.authtoken.models import Token
+from django.contrib.auth.models import User
+from django.contrib.auth import authenticate
 from .serializers import (
     LoginSerializer, RegisterSerializer, UserSerializer, TokenSerializer)
 
 
 def create_auth_token(user):
-    """
-    Returns the token required for authentication for a user.
-    """
     token, _ = Token.objects.get_or_create(user=user)
     return token
 
 
 class LoginView(generics.GenericAPIView):
-    """
-    TODO:
-    Implement login functionality, taking username and password
-    as input, and returning the Token.
-    """
-    pass
-
+    serializer_class = LoginSerializer
+
+    def post(self, request):
+        serializer = self.get_serializer(data=request.data)
+        serializer.is_valid(raise_exception=True)
+        user = serializer.save()
+        if user:
+            token = create_auth_token(user)
+            response_data = {"token": "Token " + str(token)}
+            return Response(response_data, status=status.HTTP_200_OK)
+        else:
+            return Response(status=status.HTTP_404_NOT_FOUND)
 
 class RegisterView(generics.GenericAPIView):
-    """
-    TODO:
-    Implement register functionality, registering the user by
-    taking his details, and returning the Token.
-    """
-    pass
+    serializer_class = RegisterSerializer
 
+    def post(self, request):
+        serializer = self.get_serializer(data=request.data)
+        serializer.is_valid(raise_exception=True)
+        user = serializer.save()
+        token = create_auth_token(user)
+        response_data = {"token": "Token " + str(token)}
+        return Response(response_data, status=status.HTTP_200_OK)
 
 class UserProfileView(generics.RetrieveAPIView):
-    """
-    TODO:
-    Implement the functionality to retrieve the details
-    of the logged in user.
-    """
-    pass
+    permission_classes = (permissions.IsAuthenticated, )
+    serializer_class = UserSerializer
+
+    def get(self, request):
+        serializer = self.get_serializer(request.user)
+        response_data = {
+            "id":  serializer.data['id'],
+            "name": serializer.data['first_name'] + " " + serializer.data['last_name'],
+            "email": serializer.data['email'],
+            "username": serializer.data['username']
+        }
+
+        return Response(response_data, status=status.HTTP_200_OK)