diff -r cd5e8fb64b74 -r 56850f5c73f6 src/protocols/migrations/0001_initial.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/protocols/migrations/0001_initial.py	Wed Jul 18 17:32:09 2018 +0200
@@ -0,0 +1,76 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.2 on 2017-09-22 07:33
+from __future__ import unicode_literals
+
+import concurrency.fields
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+import uuid
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Metacategory',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('ext_id', models.UUIDField(default=uuid.uuid4, unique=True, verbose_name='Model|ext_id')),
+                ('title', models.CharField(max_length=512, verbose_name='Metacategory|title')),
+                ('label', models.CharField(max_length=512, verbose_name='Metacategory|label')),
+                ('description', models.TextField(blank=True, null=True, verbose_name='Metacategory|description')),
+                ('color', models.CharField(max_length=18, verbose_name='Metacategory|color')),
+                ('has_comment', models.BooleanField()),
+                ('is_default', models.BooleanField()),
+                ('app', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='MetacategoryRevision',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('ext_id', models.UUIDField(default=uuid.uuid4, unique=True, verbose_name='Model|ext_id')),
+                ('version', concurrency.fields.AutoIncVersionField(default=1, help_text='record revision number', verbose_name='Model|version')),
+                ('title', models.CharField(max_length=512, verbose_name='Metacategory|title')),
+                ('label', models.CharField(max_length=512, verbose_name='Metacategory|label')),
+                ('description', models.TextField(blank=True, null=True, verbose_name='Metacategory|description')),
+                ('color', models.CharField(max_length=18, verbose_name='Metacategory|color')),
+                ('has_comment', models.BooleanField()),
+                ('base', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='revisions', to='protocols.Metacategory', verbose_name='MetacategoryRevision|base')),
+            ],
+            options={
+                'ordering': ['-version'],
+            },
+        ),
+        migrations.CreateModel(
+            name='Protocol',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('ext_id', models.UUIDField(default=uuid.uuid4, unique=True, verbose_name='Model|ext_id')),
+                ('owner', models.CharField(max_length=512, verbose_name='Protocol|owner')),
+                ('app', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='ProtocolRevision',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('ext_id', models.UUIDField(default=uuid.uuid4, unique=True, verbose_name='Model|ext_id')),
+                ('version', concurrency.fields.AutoIncVersionField(default=1, help_text='record revision number', verbose_name='Model|version')),
+                ('title', models.CharField(blank=True, max_length=512, null=True, verbose_name='ProtocolRevision|title')),
+                ('description', models.TextField(blank=True, null=True, verbose_name='ProtocolRevision|description')),
+                ('metacategories', models.ManyToManyField(related_name='protocols', to='protocols.MetacategoryRevision')),
+                ('protocol', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='revisions', to='protocols.Protocol', verbose_name='ProtocolRevision|protocol')),
+            ],
+            options={
+                'ordering': ['-version'],
+            },
+        ),
+    ]