attachment delete route and added the attachment updaloed by fields

backend/ticket/admin.py

@@ -59,3 +59,7 @@ class MessageAdmin(ModelAdmin, ImportExportModelAdmin):
     def content_display(self, obj):
         return obj.content[0:35] + '...'
     content_display.short_description = 'محتوای پیام'
+
+@admin.register(Attachment)
+class AttachmentAdmin(ModelAdmin, ImportExportModelAdmin):
+    list_display = ['name', 'uploaded_by']

backend/ticket/migrations/0014_attachment_uploaded_by.py

@@ -0,0 +1,21 @@
+# Generated by Django 5.1.2 on 2025-02-23 18:28
+
+import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('ticket', '0013_attachment_message_attachments_ticket_attachments'),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='attachment',
+            name='uploaded_by',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, to=settings.AUTH_USER_MODEL),
+        ),
+    ]

backend/ticket/models.py

@@ -10,6 +10,7 @@ class Attachment(models.Model):
     created_at = models.DateTimeField(auto_now_add=True)
     size = models.PositiveIntegerField(null=True, blank=True)
     name = models.CharField(max_length=400, null=True, blank=True)
+    uploaded_by = models.ForeignKey(User, on_delete=models.SET_NULL, null=True)
     def __str__(self):
         return self.file.name
 

backend/ticket/urls.py

@@ -1,17 +1,11 @@
 from django.urls import path
-from .views import (
-    TicketCreateView,
-    TicketListView,
-    TicketDetailView,
-    MessageCreateView,
-    UpdateTicketStatusView, 
-    AttachmentUploadView
-)
+from . import views
 
 urlpatterns = [
-    path('create', TicketCreateView.as_view(), name='ticket-create'),
-    path('', TicketListView.as_view(), name='ticket-list'),
-    path('<int:pk>', TicketDetailView.as_view(), name='ticket-detail'),
-    path('message/create', MessageCreateView.as_view(), name='message-create'),
-    path('attachment/create', AttachmentUploadView.as_view(), name='attachment-upload'),
+    path('create', views.TicketCreateView.as_view(), name='ticket-create'),
+    path('', views.TicketListView.as_view(), name='ticket-list'),
+    path('<int:pk>', views.TicketDetailView.as_view(), name='ticket-detail'),
+    path('message/create', views.MessageCreateView.as_view(), name='message-create'),
+    path('attachment/create', views.AttachmentUploadView.as_view(), name='attachment-upload'),
+    path('attachment/delete/<int:pk>', views.AttachmentDeleteView.as_view(), name='attachment-upload'),
 ]

backend/ticket/views.py

@@ -1,7 +1,7 @@
 from rest_framework import generics, permissions
 from rest_framework.response import Response
 from rest_framework.views import APIView
-from .models import Ticket, Message
+from .models import Ticket, Message, Attachment
 from .serializers import TicketListSerializer, MessageSerializer, TicketSerializer, AttachmentSerializer
 from utils.pagination import StructurePagination
 from drf_spectacular.utils import extend_schema, OpenApiParameter, OpenApiTypes
@@ -9,8 +9,18 @@ from rest_framework.permissions import IsAuthenticated
 from rest_framework.parsers import MultiPartParser, FormParser
 from drf_spectacular.utils import extend_schema, OpenApiParameter, OpenApiExample, OpenApiTypes, OpenApiResponse
 from rest_framework import status
+from django.shortcuts import get_object_or_404
 
 
+class AttachmentDeleteView(APIView):
+    permission_classes = [IsAuthenticated]
+    serializer_class = [AttachmentSerializer]
+    def delete(self, request, pk):
+        attachment_instance = get_object_or_404(Attachment, pk=pk)
+        if attachment_instance.uploaded_by == request.user:
+            attachment_instance.delete()
+            return Response(status=status.HTTP_204_NO_CONTENT)
+        return Response({'detail': 'این فایل توسط شما اپلود نشده'})
 
 class AttachmentUploadView(APIView):
     permission_classes = [IsAuthenticated]
@@ -24,7 +34,7 @@ class AttachmentUploadView(APIView):
     def post(self, request, *args, **kwargs):
         serializer = AttachmentSerializer(data=request.data, context={'request': request})
         if serializer.is_valid():
-            serializer.save()
+            serializer.save(uploaded_by=request.user)
             return Response(serializer.data, status=status.HTTP_201_CREATED)
         return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)