Changed foreign key field value to reference the required string directly rather than id from StudentStatus and CustomUser with Subjects

stude/subjects/migrations/0002_alter_subject_name_alter_subjectinstance_subject.py

@@ -0,0 +1,24 @@
+# Generated by Django 4.2.3 on 2023-09-05 12:19
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('subjects', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='subject',
+            name='name',
+            field=models.CharField(max_length=64, unique=True),
+        ),
+        migrations.AlterField(
+            model_name='subjectinstance',
+            name='subject',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='subjects.subject', to_field='name'),
+        ),
+    ]

stude/subjects/models.py

@@ -12,7 +12,7 @@ from semesters.models import Semester
 
 
 class Subject(models.Model):
-    name = models.CharField(max_length=64)
+    name = models.CharField(max_length=64, unique=True)
     students = models.ManyToManyField(
         CustomUser, blank=True)
 
@@ -22,7 +22,7 @@ class Subject(models.Model):
 
 class SubjectInstance(models.Model):
     subject = models.ForeignKey(
-        Subject, on_delete=models.CASCADE)
+        Subject, on_delete=models.CASCADE, to_field='name')
     code = models.CharField(max_length=16)
     course = models.ForeignKey(
         Course, on_delete=models.CASCADE)