Split up views into separate modules

todo/views/delete_task.py

@@ -0,0 +1,32 @@
+from django.contrib import messages
+from django.contrib.auth.decorators import login_required
+from django.core.exceptions import PermissionDenied
+from django.http import HttpResponse
+from django.shortcuts import get_object_or_404, redirect
+from django.urls import reverse
+
+from todo.models import Task
+
+@login_required
+def delete_task(request, task_id: int) -> HttpResponse:
+    """Delete specified task.
+    Redirect to the list from which the task came.
+    """
+
+    task = get_object_or_404(Task, pk=task_id)
+
+    # Permissions
+    if not (
+        (task.created_by == request.user)
+        or (task.assigned_to == request.user)
+        or (task.task_list.group in request.user.groups.all())
+    ):
+        raise PermissionDenied
+
+    tlist = task.task_list
+    task.delete()
+
+    messages.success(request, "Task '{}' has been deleted".format(task.title))
+    return redirect(
+        reverse("todo:list_detail", kwargs={"list_id": tlist.id, "list_slug": tlist.slug})
+    )