Fix multiple testcase error

1 files changed, 9 insertions, 3 deletions

diff --git a/yaksh/models.py b/yaksh/models.py
index 5d17dba..12bada8 100644
--- a/yaksh/models.py
+++ b/yaksh/models.py
@@ -1360,9 +1360,12 @@ class QuestionPaper(models.Model):
                     random.shuffle(testcases)
                     testcases_ids = ",".join([str(tc.id) for tc in testcases]
                                              )
-                    TestCaseOrder.objects.create(
-                        answer_paper=ans_paper, question=question,
-                        order=testcases_ids)
+                    if not TestCaseOrder.objects.filter(
+                        answer_paper=ans_paper, question=question
+                        ).exists():
+                        TestCaseOrder.objects.create(
+                            answer_paper=ans_paper, question=question,
+                            order=testcases_ids)
 
             ans_paper.questions_order = ",".join(question_ids)
             ans_paper.save()
@@ -2200,4 +2203,7 @@ class TestCaseOrder(models.Model):
     order = models.TextField()
 
 
+    class Meta:
+        unique_together = ("answer_paper", "question", "order")
+
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