ECOM-1439 adding new model and migration.

lms/djangoapps/verify_student/migrations/0005_auto__add_incoursereverificationconfiguration.py

@@ -97,7 +97,7 @@ class Migration(SchemaMigration):
         },
         'verify_student.verificationcheckpoint': {
             'Meta': {'unique_together': "(('course_id', 'checkpoint_name'),)", 'object_name': 'VerificationCheckpoint'},
-            'checkpoint_name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '32'}),
+            'checkpoint_name': ('django.db.models.fields.CharField', [], {'max_length': '32'}),
             'course_id': ('xmodule_django.models.CourseKeyField', [], {'max_length': '255', 'db_index': 'True'}),
             'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
             'photo_verification': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['verify_student.SoftwareSecurePhotoVerification']", 'symmetrical': 'False'})
@@ -115,4 +115,3 @@ class Migration(SchemaMigration):
     }
 
     complete_apps = ['verify_student']
-

lms/djangoapps/verify_student/models.py

@@ -1061,3 +1061,19 @@ class InCourseReverificationConfiguration(ConfigurationModel):
 
     """
     pass
+
+
+class SkippedReverification(models.Model):
+    """
+    Model for tracking skipped Reverification of a user against a specific
+    course.
+    If user skipped the Reverification for a specific course then in future
+    user cannot see the reverification link.
+    """
+    user = models.ForeignKey(User)
+    course_id = CourseKeyField(max_length=255, db_index=True)
+    checkpoint = models.ForeignKey(VerificationCheckpoint, related_name="skipped_checkpoint")
+    created_at = models.DateTimeField(auto_now_add=True)
+
+    class Meta:  # pylint: disable=missing-docstring, old-style-class
+        unique_together = (('user', 'course_id'),)