fix: deleted at not updating for pages (#2720)

* fix: updated deleted_at of pages for project deletion

* chore: change function name

* chore: code refacture

* chore: remove unused imports

* chore: optimize filter logic

apiserver/plane/app/views/project/base.py

@@ -580,6 +580,7 @@ class ProjectViewSet(BaseViewSet):
             ).exists()
         ):
             project = Project.objects.get(pk=pk)
+
             project.delete()
             webhook_activity.delay(
                 event="project",

apiserver/plane/bgtasks/deletion_task.py

@@ -110,6 +110,17 @@ def soft_delete_related_objects(app_label, model_name, instance_pk, using=None):
         instance.save()
 
 
+@shared_task
+def soft_delete_pages_on_project_deletion(project_id):
+    from plane.db.models import Page
+
+    pages = Page.objects.filter(project_pages__project_id=project_id)
+
+    for page in pages:
+        page.deleted_at = timezone.now()
+        page.save()
+
+
 # @shared_task
 def restore_related_objects(app_label, model_name, instance_pk, using=None):
     pass

apiserver/plane/db/models/project.py

@@ -13,6 +13,7 @@ from plane.db.mixins import AuditModel
 
 # Module imports
 from .base import BaseModel
+from plane.bgtasks.deletion_task import soft_delete_pages_on_project_deletion
 
 ROLE_CHOICES = ((20, "Admin"), (15, "Member"), (5, "Guest"))
 
@@ -155,6 +156,12 @@ class Project(BaseModel):
         self.identifier = self.identifier.strip().upper()
         return super().save(*args, **kwargs)
 
+    def delete(self, using=None, *args, **kwargs):
+        delete_queryset = super().delete(using=using, *args, **kwargs)
+        soft_delete_pages_on_project_deletion.delay(self.id)
+
+        return delete_queryset
+
 
 class ProjectBaseModel(BaseModel):
     project = models.ForeignKey(