Revision: add a proper uid for revisions (which we also use for sync tag).

django_etesync/migrations/0024_collectionitemrevision_uid.py

@@ -0,0 +1,19 @@
+# Generated by Django 3.0.3 on 2020-03-12 13:41
+
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('django_etesync', '0023_auto_20200310_1556'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='collectionitemrevision',
+            name='uid',
+            field=models.CharField(db_index=True, max_length=44, validators=[django.core.validators.RegexValidator(message='Not a valid UID', regex='[a-zA-Z0-9]')]),
+        ),
+    ]

django_etesync/migrations/0025_auto_20200312_1350.py

@@ -0,0 +1,19 @@
+# Generated by Django 3.0.3 on 2020-03-12 13:50
+
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('django_etesync', '0024_collectionitemrevision_uid'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='collectionitemrevision',
+            name='uid',
+            field=models.CharField(db_index=True, max_length=44, unique=True, validators=[django.core.validators.RegexValidator(message='Not a valid UID', regex='[a-zA-Z0-9]')]),
+        ),
+    ]