adding relations

ARFA/ARFA_app/models.py

@@ -58,3 +58,38 @@ class Question(models.Model):
 
 
 
+class Takes(models.Model):
+	student = models.ForeignKey('Student',models.SET_NULL,blank=True,null=True)
+	test_ID = models.AutoField(primary_key=True)
+	time_stamp = models.DateTimeField(auto_now=True)
+	total_marks = models.FloatField(null=True)
+	rank = models.IntegerField
+
+	class Meta:
+		unique_together = (('student', 'test_ID'))
+
+class Created_BY(models.Model):
+	test_ID = models.ForeignKey('Test',models.SET_NULL,blank=True,null=True)
+	faculty = models.ForeignKey('Faculty',models.SET_NULL,blank=True,null=True)
+
+	class Meta:
+		unique_together = (('faculty', 'test_ID'))
+
+class Contains(models.Model):
+	test_ID = models.ForeignKey('Test',models.SET_NULL,blank=True,null=True)
+	q_ID  = models.ForeignKey('Question',models.SET_NULL,blank=True,null=True)	
+	marks_pos =  models.FloatField(null=True)
+	marks_neg = models.FloatField(null=True)
+
+	class Meta:
+		unique_together = (('q_ID', 'test_ID'))
+
+
+class Evaluvation(models.Model):
+	student = models.ForeignKey('Student',models.SET_NULL,blank=True,null=True)
+	test_ID = models.ForeignKey('Test',models.SET_NULL,blank=True,null=True)
+	q_ID = models.ForeignKey('Question',models.SET_NULL,blank=True,null=True)
+	marks = models.FloatField(null=True)
+
+	class Meta:
+		unique_together = (('student', 'test_ID', 'q_ID'))
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