1 files changed, 82 insertions, 0 deletions
diff --git a/yaksh/tasks.py b/yaksh/tasks.py
new file mode 100644
index 0000000..1c4658b
--- /dev/null
+++ b/yaksh/tasks.py
@@ -0,0 +1,82 @@
+# Python Imports
+from __future__ import absolute_import, unicode_literals
+from textwrap import dedent
+
+# Django and celery imports
+from celery import shared_task
+from django.urls import reverse
+from django.shortcuts import get_object_or_404
+
+# Local imports
+from .models import Course, QuestionPaper, Quiz, AnswerPaper, CourseStatus
+from notifications_plugin.models import NotificationMessage, Notification
+
+
+@shared_task
+def regrade_papers(data):
+    question_id = data.get("question_id")
+    questionpaper_id = data.get("questionpaper_id")
+    answerpaper_id = data.get("answerpaper_id")
+    course_id = data.get("course_id")
+    user_id = data.get("user_id")
+    quiz_id = data.get("quiz_id")
+    quiz_name = data.get("quiz_name")
+    course_name = data.get("course_name")
+
+    url = reverse("yaksh:grade_user", args=[quiz_id, course_id])
+
+    try:
+        if answerpaper_id is not None and question_id is None:
+            # Regrade specific user for all questions
+            answerpaper = AnswerPaper.objects.get(id=answerpaper_id)
+            url = reverse("yaksh:grade_user",
+                          args=[quiz_id, answerpaper.user_id, course_id])
+            for question in answerpaper.questions.all():
+                answerpaper.regrade(question.id)
+                course_status = CourseStatus.objects.filter(
+                    user=answerpaper.user, course=answerpaper.course)
+                if course_status.exists():
+                    course_status.first().set_grade()
+
+        elif answerpaper_id is not None and question_id is not None:
+            # Regrade specific user for a specific question
+            answerpaper = AnswerPaper.objects.get(pk=answerpaper_id)
+            url = reverse("yaksh:grade_user",
+                          args=[quiz_id, answerpaper.user_id, course_id])
+            answerpaper.regrade(question_id)
+            course_status = CourseStatus.objects.filter(
+                user=answerpaper.user, course=answerpaper.course)
+            if course_status.exists():
+                course_status.first().set_grade()
+
+        elif questionpaper_id is not None and question_id is not None:
+            # Regrade all users for a specific question
+            answerpapers = AnswerPaper.objects.filter(
+                questions=question_id,
+                question_paper_id=questionpaper_id, course_id=course_id)
+            for answerpaper in answerpapers:
+                answerpaper.regrade(question_id)
+                course_status = CourseStatus.objects.filter(
+                    user=answerpaper.user, course=answerpaper.course)
+                if course_status.exists():
+                    course_status.first().set_grade()
+
+        message = dedent("""
+            Quiz re-evaluation is complete.
+            Click <a href="{0}">here</a> to view
+            """.format(url)
+            )
+        notification_type = "success"
+    except Exception as e:
+        message = dedent("""
+            Unable to regrade please try again.
+            Click <a href="{0}">here</a> to view""".format(url)
+            )
+        notification_type = "warning"
+    nm = NotificationMessage.objects.add_single_message(
+        user_id, "{0} re-evaluation status".format(quiz_name),
+        message, notification_type
+    )
+    notification = Notification.objects.add_single_notification(
+        user_id, nm.id
+    )