add uuid field to schedule

scheduler/main/migrations/0002_schedule_uuid.py

+# Generated by Django 3.1.6 on 2021-02-22 14:39
+
+from django.db import migrations, models
+import uuid
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('main', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='schedule',
+            name='uuid',
+            field=models.UUIDField(default=uuid.uuid4, editable=False, unique=True),
+        ),
+    ]

scheduler/main/models.py

@@ -17,6 +17,7 @@
 # <http://www.gnu.org/licenses/>.
 
 import datetime
+import uuid
 
 from django.db import models
 from django.utils import formats
@@ -24,6 +25,7 @@ from django.utils.translation import gettext_lazy as _
 
 
 class Schedule(models.Model):
+    uuid = models.UUIDField(default=uuid.uuid4, unique=True, editable=False)
     title = models.CharField(_('Title'), max_length=254)
 
     def __str__(self):