Make college field compulsory for Journal model

journals/migrations/0094_auto_20200906_1355.py

+# Generated by Django 2.2.11 on 2020-09-06 11:55
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('journals', '0093_journal_college'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='journal',
+            name='college',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='journals', to='colleges.College'),
+        ),
+    ]

journals/models/journal.py

@@ -39,8 +39,7 @@ class Journal(models.Model):
     college = models.ForeignKey(
         'colleges.College',
         on_delete=models.PROTECT,
-        related_name='journals',
-        blank=True, null=True
+        related_name='journals'
     )
 
     specialties = models.ManyToManyField(