Added Login and Registration Feature

server/database/app.js

@@ -59,16 +59,35 @@ app.get('/fetchReviews/dealer/:id', async (req, res) => {
 // Express route to fetch all dealerships
 app.get('/fetchDealers', async (req, res) => {
 //Write your code here
+try {
+    const documents = await Dealerships.find();
+    res.json(documents);
+  } catch (error) {
+    res.status(500).json({ error: 'Error fetching documents' });
+  }
+
 });
 
 // Express route to fetch Dealers by a particular state
 app.get('/fetchDealers/:state', async (req, res) => {
 //Write your code here
+try {
+    const documents = await Dealerships.find({state: req.params.state});
+    res.json(documents);
+  } catch (error) {
+    res.status(500).json({ error: 'Error fetching documents' });
+  }
 });
 
 // Express route to fetch dealer by a particular id
 app.get('/fetchDealer/:id', async (req, res) => {
 //Write your code here
+try {
+    const documents = await Dealerships.find({id: req.params.id});
+    res.json(documents);
+  } catch (error) {
+    res.status(500).json({ error: 'Error fetching documents' });
+  }
 });
 
 //Express route to insert review

server/djangoapp/.env

@@ -1,2 +1,2 @@
-backend_url =your backend url
-sentiment_analyzer_url=your code engine deployment url
+backend_url =https://avaneeshshas-3030.theiadockernext-0-labs-prod-theiak8s-4-tor01.proxy.cognitiveclass.ai
+sentiment_analyzer_url=https://sentianalyzer.1o5lrputx8l1.us-south.codeengine.appdomain.cloud

server/djangoapp/admin.py

@@ -1,9 +1,10 @@
-# from django.contrib import admin
-# from .models import related models
+from django.contrib import admin
+from .models import CarMake, CarModel
 
 
 # Register your models here.
-
+admin.site.register(CarMake)
+admin.site.register(CarModel)
 # CarModelInline class
 
 # CarModelAdmin class

server/djangoapp/models.py

@@ -1,8 +1,8 @@
 # Uncomment the following imports before adding the Model code
 
-# from django.db import models
-# from django.utils.timezone import now
-# from django.core.validators import MaxValueValidator, MinValueValidator
+from django.db import models
+from django.utils.timezone import now
+from django.core.validators import MaxValueValidator, MinValueValidator
 
 
 # Create your models here.
@@ -12,7 +12,13 @@
 # - Description
 # - Any other fields you would like to include in car make model
 # - __str__ method to print a car make object
+class CarMake(models.Model):
+    name = models.CharField(max_length = 100)
+    description = models.TextField()
+    year = models.PositiveIntegerField(default=2024)
 
+    def __str__(self):
+        return self.name
 
 # <HINT> Create a Car Model model `class CarModel(models.Model):`:
 # - Many-To-One relationship to Car Make model (One Car Make has many
@@ -23,3 +29,22 @@
 # - Year (IntegerField) with min value 2015 and max value 2023
 # - Any other fields you would like to include in car model
 # - __str__ method to print a car make object
+class CarModel(models.Model):
+    car_make = models.ForeignKey(CarMake, on_delete=models.CASCADE)  # Many-to-One relationship
+    name = models.CharField(max_length=100)
+    CAR_TYPES = [
+        ('SEDAN', 'Sedan'),
+        ('SUV', 'SUV'),
+        ('WAGON', 'Wagon'),
+        # Add more choices as required
+    ]
+    type = models.CharField(max_length=10, choices=CAR_TYPES, default='SUV')
+    year = models.IntegerField(default=2023,
+        validators=[
+            MaxValueValidator(2023),
+            MinValueValidator(2015)
+        ])
+    # Other fields as needed
+
+    def __str__(self):
+        return self.name  # Return the name as the string representation

server/djangoapp/populate.py

@@ -1,2 +1,38 @@
+from .models import CarMake, CarModel
+
 def initiate():
-    print("Populate not implemented. Add data manually")
+    car_make_data = [
+        {"name":"NISSAN", "description":"Great cars. Japanese technology", "year": "1933"},
+        {"name":"Mercedes", "description":"Great cars. German technology", "year": "1926"},
+        {"name":"Audi", "description":"Great cars. German technology", "year":"1909"},
+        {"name":"Kia", "description":"Great cars. Korean technology", "year":"1944"},
+        {"name":"Toyota", "description":"Great cars. Japanese technology","year":"1937"},
+    ]
+
+    car_make_instances = []
+    for data in car_make_data:
+            car_make_instances.append(CarMake.objects.create(name=data['name'], description=data['description']))
+
+
+    # Create CarModel instances with the corresponding CarMake instances
+    car_model_data = [
+      {"name":"Pathfinder", "type":"SUV", "year": 2023, "car_make":car_make_instances[0]},
+      {"name":"Qashqai", "type":"SUV", "year": 2023, "car_make":car_make_instances[0]},
+      {"name":"XTRAIL", "type":"SUV", "year": 2023, "car_make":car_make_instances[0]},
+      {"name":"A-Class", "type":"SUV", "year": 2023, "car_make":car_make_instances[1]},
+      {"name":"C-Class", "type":"SUV", "year": 2023, "car_make":car_make_instances[1]},
+      {"name":"E-Class", "type":"SUV", "year": 2023, "car_make":car_make_instances[1]},
+      {"name":"A4", "type":"SUV", "year": 2023, "car_make":car_make_instances[2]},
+      {"name":"A5", "type":"SUV", "year": 2023, "car_make":car_make_instances[2]},
+      {"name":"A6", "type":"SUV", "year": 2023, "car_make":car_make_instances[2]},
+      {"name":"Sorrento", "type":"SUV", "year": 2023, "car_make":car_make_instances[3]},
+      {"name":"Carnival", "type":"SUV", "year": 2023, "car_make":car_make_instances[3]},
+      {"name":"Cerato", "type":"Sedan", "year": 2023, "car_make":car_make_instances[3]},
+      {"name":"Corolla", "type":"Sedan", "year": 2023, "car_make":car_make_instances[4]},
+      {"name":"Camry", "type":"Sedan", "year": 2023, "car_make":car_make_instances[4]},
+      {"name":"Kluger", "type":"SUV", "year": 2023, "car_make":car_make_instances[4]},
+        # Add more CarModel instances as needed
+    ]
+
+    for data in car_model_data:
+            CarModel.objects.create(name=data['name'], car_make=data['car_make'], type=data['type'], year=data['year'])

server/djangoapp/restapis.py

@@ -1,5 +1,5 @@
 # Uncomment the imports below before you add the function code
-# import requests
+import requests
 import os
 from dotenv import load_dotenv
 
@@ -12,11 +12,44 @@
     default="http://localhost:5050/")
 
 # def get_request(endpoint, **kwargs):
+def get_request(endpoint, **kwargs):
+    params = ""
+    if(kwargs):
+        for key,value in kwargs.items():
+            params=params+key+"="+value+"&"
+
+    request_url = backend_url+endpoint+"?"+params
+
+    print("GET from {} ".format(request_url))
+    try:
+        # Call get method of requests library with URL and parameters
+        response = requests.get(request_url)
+        return response.json()
+    except:
+        # If any error occurs
+        print("Network exception occurred")
 # Add code for get requests to back end
 
 # def analyze_review_sentiments(text):
+def analyze_review_sentiments(text):
+    request_url = sentiment_analyzer_url+"analyze/"+text
+    try:
+        # Call get method of requests library with URL and parameters
+        response = requests.get(request_url)
+        return response.json()
+    except Exception as err:
+        print(f"Unexpected {err=}, {type(err)=}")
+        print("Network exception occurred")
 # request_url = sentiment_analyzer_url+"analyze/"+text
 # Add code for retrieving sentiments
 
 # def post_review(data_dict):
+def post_review(data_dict):
+    request_url = backend_url+"/insert_review"
+    try:
+        response = requests.post(request_url,json=data_dict)
+        print(response.json())
+        return response.json()
+    except:
+        print("Network exception occurred")
 # Add code for posting review

server/djangoapp/urls.py

@@ -1,18 +1,29 @@
 # Uncomment the imports before you add the code
-# from django.urls import path
+from django.urls import path
 from django.conf.urls.static import static
 from django.conf import settings
-# from . import views
+from django.views.generic import TemplateView
+from . import views
 
 app_name = 'djangoapp'
 urlpatterns = [
     # # path for registration
-
+    path(route='register', view=views.registration, name='register'),
+    #re_path(r'^.*$', TemplateView.as_view(template_name='index.html')),
     # path for login
-    # path(route='login', view=views.login_user, name='login'),
+    path(route='login', view=views.login_user, name='login'),
+
+    # path for logout
+    path(route='logout', view=views.logout_request, name='logout'),
 
     # path for dealer reviews view
+    path(route='get_dealers/', view=views.get_dealerships, name='get_dealers'),
+    path(route='get_dealers/<str:state>', view=views.get_dealerships, name='get_dealers_by_state'),
 
-    # path for add a review view
+    path(route='dealer/<int:dealer_id>', view=views.get_dealer_details, name='dealer_details'),
 
+    path(route='reviews/dealer/<int:dealer_id>', view=views.get_dealer_reviews, name='dealer_details'),
+    # path for add a review view
+    path(route='add_review', view=views.add_review, name='add_review'),
+    path(route='get_cars', view=views.get_cars, name ='getcars'),
 ] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

server/djangoapp/views.py

@@ -1,21 +1,21 @@
 # Uncomment the required imports before adding the code
 
-# from django.shortcuts import render
-# from django.http import HttpResponseRedirect, HttpResponse
-# from django.contrib.auth.models import User
-# from django.shortcuts import get_object_or_404, render, redirect
-# from django.contrib.auth import logout
-# from django.contrib import messages
-# from datetime import datetime
+from django.shortcuts import render
+from django.http import HttpResponseRedirect, HttpResponse
+from django.contrib.auth.models import User
+from django.shortcuts import get_object_or_404, render, redirect
+from django.contrib.auth import logout
+from django.contrib import messages
+from datetime import datetime
 
 from django.http import JsonResponse
 from django.contrib.auth import login, authenticate
 import logging
 import json
 from django.views.decorators.csrf import csrf_exempt
-# from .populate import initiate
-
-
+from .populate import initiate
+from .models import CarMake, CarModel
+from .restapis import get_request, analyze_review_sentiments, post_review
 # Get an instance of a logger
 logger = logging.getLogger(__name__)
 
@@ -39,27 +39,105 @@ def login_user(request):
     return JsonResponse(data)
 
 # Create a `logout_request` view to handle sign out request
-# def logout_request(request):
+def logout_request(request):
+    logout(request)
+    data = {"userName":"username"}
+    return JsonResponse(data)
 # ...
 
 # Create a `registration` view to handle sign up request
-# @csrf_exempt
-# def registration(request):
-# ...
+@csrf_exempt
+def registration(request):
+    context = {}
+
+    data = json.loads(request.body)
+    username = data['userName']
+    password = data['password']
+    first_name = data['firstName']
+    last_name = data['lastName']
+    email = data['email']
+    username_exist = False
+    email_exist = False
+    try:
+        # Check if user already exists
+        User.objects.get(username=username)
+        username_exist = True
+    except:
+        # If not, simply log this is a new user
+        logger.debug("{} is new user".format(username))
+
+    # If it is a new user
+    if not username_exist:
+        # Create user in auth_user table
+        user = User.objects.create_user(username=username, first_name=first_name, last_name=last_name,password=password, email=email)
+        # Login the user and redirect to list page
+        login(request, user)
+        data = {"userName":username,"status":"Authenticated"}
+        return JsonResponse(data)
+    else :
+        data = {"userName":username,"error":"Already Registered"}
+        return JsonResponse(data)
 
 # # Update the `get_dealerships` view to render the index page with
 # a list of dealerships
 # def get_dealerships(request):
+#Update the `get_dealerships` render list of dealerships all by default, particular state if state is passed
+def get_dealerships(request, state="All"):
+    if(state == "All"):
+        endpoint = "/fetchDealers"
+    else:
+        endpoint = "/fetchDealers/"+state
+    dealerships = get_request(endpoint)
+    return JsonResponse({"status":200,"dealers":dealerships})
 # ...
 
 # Create a `get_dealer_reviews` view to render the reviews of a dealer
 # def get_dealer_reviews(request,dealer_id):
+def get_dealer_reviews(request, dealer_id):
+    # if dealer id has been provided
+    if(dealer_id):
+        endpoint = "/fetchReviews/dealer/"+str(dealer_id)
+        reviews = get_request(endpoint)
+        for review_detail in reviews:
+            response = analyze_review_sentiments(review_detail['review'])
+            print(response)
+            review_detail['sentiment'] = response['sentiment']
+        return JsonResponse({"status":200,"reviews":reviews})
+    else:
+        return JsonResponse({"status":400,"message":"Bad Request"})
 # ...
 
 # Create a `get_dealer_details` view to render the dealer details
 # def get_dealer_details(request, dealer_id):
+def get_dealer_details(request, dealer_id):
+    if(dealer_id):
+        endpoint = "/fetchDealer/"+str(dealer_id)
+        dealership = get_request(endpoint)
+        return JsonResponse({"status":200,"dealer":dealership})
+    else:
+        return JsonResponse({"status":400,"message":"Bad Request"})
 # ...
 
 # Create a `add_review` view to submit a review
 # def add_review(request):
+def add_review(request):
+    if(request.user.is_anonymous == False):
+        data = json.loads(request.body)
+        try:
+            response = post_review(data)
+            return JsonResponse({"status":200})
+        except:
+            return JsonResponse({"status":401,"message":"Error in posting review"})
+    else:
+        return JsonResponse({"status":403,"message":"Unauthorized"})
 # ...
+def get_cars(request):
+    count = CarMake.objects.filter().count()
+    print(count)
+    if(count == 0):
+        initiate()
+    car_models = CarModel.objects.select_related('car_make')
+    cars = []
+    for car_model in car_models:
+        cars.append({"CarModel": car_model.name, "CarMake": car_model.car_make.name, "CarManufacturedYear":car_model.year})
+    return JsonResponse({"CarModels":cars})