Add endpoint for creating auction

backend/Pipfile

@@ -21,4 +21,3 @@ python_version = "3.10"
 test = "python manage.py test"
 start = "python manage.py runserver"
 migrate = "python manage.py migrate"
-makemigrations = "python manage.py makemigrations"

backend/auction/admin.py

@@ -1,3 +1,14 @@
 from django.contrib import admin
 
+from auction.models import Auction
+from bid.models import Bid
+from user.models import User
+from vehicle.models import Brand, Vehicle, VehicleType
+
 # Register your models here.
+admin.site.register(Auction)
+admin.site.register(Vehicle)
+admin.site.register(Brand)
+admin.site.register(VehicleType)
+admin.site.register(Bid)
+admin.site.register(User)

backend/auction/migrations/0002_remove_auction_identifier_auction_name_and_more.py

@@ -0,0 +1,50 @@
+# Generated by Django 4.2.6 on 2023-10-22 02:26
+
+import datetime
+from django.db import migrations, models
+import uuid
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("auction", "0001_initial"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="auction",
+            name="identifier",
+        ),
+        migrations.AddField(
+            model_name="auction",
+            name="name",
+            field=models.CharField(default="Auction", max_length=150),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name="auction",
+            name="start_date",
+            field=models.DateTimeField(
+                default=datetime.datetime(
+                    2023, 10, 22, 2, 26, 16, 722675, tzinfo=datetime.timezone.utc
+                )
+            ),
+            preserve_default=False,
+        ),
+        migrations.AlterField(
+            model_name="auction",
+            name="end_date",
+            field=models.DateTimeField(),
+        ),
+        migrations.AlterField(
+            model_name="auction",
+            name="id",
+            field=models.UUIDField(
+                default=uuid.uuid4,
+                editable=False,
+                primary_key=True,
+                serialize=False,
+                unique=True,
+            ),
+        ),
+    ]

backend/auction/models.py

@@ -1,10 +1,20 @@
 from django.db import models
 
 from core.models import MainModel
-from user.models import User
-from vehicle.models import Vehicle
 
 
 class Auction(MainModel):
-    # start date is given by MainMode's created_at date
-    end_date = models.DateTimeField(editable=False)
+    """
+    Auction that bidders can place bid on vehicles
+    """
+
+    name = models.CharField(max_length=150)
+    start_date = models.DateTimeField(null=False)
+    end_date = models.DateTimeField(null=False)
+
+    def __str__(self):
+        return (
+            self.name
+            if self.name is not None
+            else "Auction at {start_date} to {end_date}"
+        )

backend/auction/serializers.py

@@ -0,0 +1,9 @@
+from rest_framework import serializers
+
+from .models import Auction
+
+
+class AuctionSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Auction
+        fields = ["id", "name", "start_date", "end_date"]

backend/auction/urls.py

@@ -0,0 +1,8 @@
+from django.contrib import admin
+from django.urls import include, path
+
+from .views import AuctionListApiView
+
+urlpatterns = [
+    path("", AuctionListApiView.as_view(), name="auction"),
+]

backend/auction/views.py

@@ -1,3 +1,64 @@
-from django.shortcuts import render
+from datetime import datetime
+
+from rest_framework import status
+from rest_framework.response import Response
+from rest_framework.views import APIView
+
+from .models import Auction
+from .serializers import AuctionSerializer
+
 
 # Create your views here.
+class AuctionListApiView(APIView):
+    def get(self, request, *args, **kwargs):
+        """
+        Get all auctions
+        """
+        auctions = Auction.objects.all()
+        serializer = AuctionSerializer(auctions, many=True)
+        return Response(serializer.data, status=status.HTTP_200_OK)
+
+    def post(self, request, *args, **kwargs):
+        """
+        Create the Auction with given auction data
+        """
+        date_format = "%Y-%m-%d"
+
+        # Check if start_date and end_date are provided
+        if (
+            request.data.get("start_date") is None
+            or request.data.get("end_date") is None
+        ):
+            return Response(
+                {"error": "Start date and end date are required"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        start_date = datetime.strptime(request.data.get("start_date"), date_format)
+        end_date = datetime.strptime(request.data.get("end_date"), date_format)
+
+        # Check if start date is in the past
+        if start_date < datetime.now().date():
+            return Response(
+                {"error": "Start date should be in the future"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        # Check if end date is before start date
+        if end_date < start_date:
+            return Response(
+                {"error": "End date should be after start date"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        data = {
+            "name": request.data.get("name"),
+            "start_date": start_date,
+            "end_date": end_date,
+        }
+        serializer = AuctionSerializer(data=data)
+        if serializer.is_valid():
+            serializer.save()
+            return Response(serializer.data, status=status.HTTP_201_CREATED)
+
+        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

backend/bid/migrations/0002_remove_bid_identifier_alter_bid_id.py

@@ -0,0 +1,28 @@
+# Generated by Django 4.2.6 on 2023-10-22 02:26
+
+from django.db import migrations, models
+import uuid
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("bid", "0001_initial"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="bid",
+            name="identifier",
+        ),
+        migrations.AlterField(
+            model_name="bid",
+            name="id",
+            field=models.UUIDField(
+                default=uuid.uuid4,
+                editable=False,
+                primary_key=True,
+                serialize=False,
+                unique=True,
+            ),
+        ),
+    ]

backend/core/models.py

@@ -10,9 +10,11 @@ class MainModel(models.Model):
     that every model should have. All models should extend this.
     """
 
-    identifier = models.UUIDField(unique=True, default=uuid.uuid4, editable=False)
-    created_at = models.DateTimeField(editable=False)
-    updated_at = models.DateTimeField()
+    id = models.UUIDField(
+        unique=True, default=uuid.uuid4, editable=False, primary_key=True
+    )
+    created_at = models.DateTimeField(editable=False, auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
 
     class Meta:
         abstract = True

backend/core/urls.py

@@ -15,8 +15,9 @@
     2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
 """
 from django.contrib import admin
-from django.urls import path
+from django.urls import include, path
 
 urlpatterns = [
-    path("admin/", admin.site.urls),
+    path("admin", admin.site.urls),
+    path("api/v1/auction", include("auction.urls")),
 ]

backend/tox.ini

@@ -1,7 +1,7 @@
 [flake8]
 exclude = static,assets,logs,media,tests,templates,*/migrations/*.py,urls.py,settings.py,Pipfile,Pipfile.lock
 max-line-length = 88
-ignore = F401
+ignore = F401 W503
 
 [tool:black]
 line-length = 88

backend/vehicle/migrations/0002_remove_brand_identifier_remove_vehicle_identifier_and_more.py

@@ -0,0 +1,58 @@
+# Generated by Django 4.2.6 on 2023-10-22 02:26
+
+from django.db import migrations, models
+import uuid
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("vehicle", "0001_initial"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="brand",
+            name="identifier",
+        ),
+        migrations.RemoveField(
+            model_name="vehicle",
+            name="identifier",
+        ),
+        migrations.RemoveField(
+            model_name="vehicletype",
+            name="identifier",
+        ),
+        migrations.AlterField(
+            model_name="brand",
+            name="id",
+            field=models.UUIDField(
+                default=uuid.uuid4,
+                editable=False,
+                primary_key=True,
+                serialize=False,
+                unique=True,
+            ),
+        ),
+        migrations.AlterField(
+            model_name="vehicle",
+            name="id",
+            field=models.UUIDField(
+                default=uuid.uuid4,
+                editable=False,
+                primary_key=True,
+                serialize=False,
+                unique=True,
+            ),
+        ),
+        migrations.AlterField(
+            model_name="vehicletype",
+            name="id",
+            field=models.UUIDField(
+                default=uuid.uuid4,
+                editable=False,
+                primary_key=True,
+                serialize=False,
+                unique=True,
+            ),
+        ),
+    ]