[chore] Global project refactoring

backend/project/api/notifications/admin.py

@@ -0,0 +1,31 @@
+from django.contrib import admin
+from notifications import models
+from notifications.forms import (
+    CreateNotificationAdminForm,
+    EditNotificationAdminForm,
+)
+
+
+class NotificationAdmin(admin.ModelAdmin):
+    form = EditNotificationAdminForm
+    add_form = CreateNotificationAdminForm
+    list_display = [
+        models.Notification.title.field.name,
+        models.Notification.user.field.name,
+        models.Notification.content.field.name,
+        models.Notification.read.field.name,
+        models.Notification.created_at.field.name,
+    ]
+
+    def get_readonly_fields(self, request, obj=None):  # noqa: ARG002
+        if obj:
+            return (
+                *self.readonly_fields,
+                models.Notification.read.field.name,
+                models.Notification.created_at.field.name,
+            )
+
+        return self.readonly_fields
+
+
+admin.site.register(models.Notification, NotificationAdmin)

backend/project/api/notifications/apps.py

@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class NotificationsConfig(AppConfig):
+    default_auto_field = "django.db.models.BigAutoField"
+    name = "notifications"

backend/project/api/notifications/forms.py

@@ -0,0 +1,22 @@
+from django import forms
+from notifications.models import Notification
+
+
+class EditNotificationAdminForm(forms.ModelForm):
+    class Meta:
+        model = Notification
+        fields = (
+            model.user.field.name,
+            model.title.field.name,
+            model.content.field.name,
+        )
+
+
+class CreateNotificationAdminForm(forms.ModelForm):
+    class Meta:
+        model = Notification
+        fields = (
+            model.user.field.name,
+            model.title.field.name,
+            model.content.field.name,
+        )

backend/project/api/notifications/models.py

@@ -0,0 +1,36 @@
+from django.conf import settings
+from django.db import models
+
+
+class NotificationManager(models.Manager):
+    def by_user(self, user_id):
+        return self.get_queryset().filter(
+            user__id=user_id,
+        )
+
+
+class Notification(models.Model):
+    user = models.ForeignKey(
+        settings.AUTH_USER_MODEL,
+        on_delete=models.CASCADE,
+        related_name="notifications",
+    )
+    title = models.CharField(
+        max_length=150,
+        null=False,
+    )
+    content = models.TextField(
+        verbose_name="content",
+        null=False,
+    )
+    read = models.BooleanField(
+        default=False,
+    )
+    created_at = models.DateTimeField(
+        auto_now_add=True,
+    )
+
+    objects = NotificationManager()
+
+    def __str__(self):
+        return self.title

backend/project/api/notifications/serializers.py

@@ -0,0 +1,8 @@
+from notifications.models import Notification
+from rest_framework import serializers
+
+
+class NotificationSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Notification
+        fields = ["title", "content", "read", "created_at"]

backend/project/api/notifications/views.py

@@ -0,0 +1,13 @@
+from notifications.models import Notification
+from notifications.serializers import NotificationSerializer
+from rest_framework import generics
+from rest_framework.permissions import IsAuthenticated
+
+
+class UserNotificationsAPIView(generics.ListAPIView):
+    serializer_class = NotificationSerializer
+    permission_classes = [IsAuthenticated]
+
+    def get_queryset(self):
+        user = self.request.user
+        return Notification.objects.by_user(user.id)