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-rw-r--r--grades/models.py5
1 files changed, 3 insertions, 2 deletions
diff --git a/grades/models.py b/grades/models.py
index b395a24..656c0d1 100644
--- a/grades/models.py
+++ b/grades/models.py
@@ -5,7 +5,8 @@ from django.contrib.auth.models import User
class GradingSystem(models.Model):
name = models.CharField(max_length=255, unique=True)
description = models.TextField(default='About the grading system!')
- creator = models.ForeignKey(User, null=True, blank=True)
+ creator = models.ForeignKey(User, null=True, blank=True,
+ on_delete=models.CASCADE)
def get_grade(self, marks):
ranges = self.graderange_set.all()
@@ -39,7 +40,7 @@ class GradingSystem(models.Model):
class GradeRange(models.Model):
- system = models.ForeignKey(GradingSystem)
+ system = models.ForeignKey(GradingSystem, on_delete=models.CASCADE)
lower_limit = models.FloatField()
upper_limit = models.FloatField()
grade = models.CharField(max_length=10)