add uniqueness constraint as the same user should not have two exam attempts on the same exam

fb25a2c2 · Chris Dodge · 1829df16 · fb25a2c2 · fb25a2c2
Commit fb25a2c2 authored Jul 20, 2015 by Chris Dodge
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edx_proctoring/migrations/0004_auto__add_unique_proctoredexamstudentattempt_user_proctored_exam.py
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edx_proctoring/models.py
+1 -0

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--- a/edx_proctoring/migrations/0004_auto__add_unique_proctoredexamstudentattempt_user_proctored_exam.py
+++ b/edx_proctoring/migrations/0004_auto__add_unique_proctoredexamstudentattempt_user_proctored_exam.py
--- a/edx_proctoring/models.py
+++ b/edx_proctoring/models.py
@@ -229,6 +229,7 @@ class ProctoredExamStudentAttempt(TimeStampedModel):
        """ Meta class for this Django model """
        db_table = 'proctoring_proctoredexamstudentattempt'
        verbose_name = 'proctored exam attempt'
+        unique_together = (('user', 'proctored_exam'),)

    @property
    def is_active(self):