migrate to per-model UUID Primary key, remove UUIDModel (#26)

* *: migrate to per-model UUID Primary key, remove UUIDModel

* *: fix import order, fix unittests

passbook/policies/migrations/0001_initial.py

@@ -1,4 +1,4 @@
-# Generated by Django 3.0.3 on 2020-05-07 18:35
+# Generated by Django 3.0.6 on 2020-05-19 22:07
 
 import uuid
 
@@ -10,6 +10,8 @@ class Migration(migrations.Migration):
 
     initial = True
 
+    dependencies = []
+
     operations = [
         migrations.CreateModel(
             name="Policy",
@@ -17,7 +19,7 @@ class Migration(migrations.Migration):
                 ("created", models.DateTimeField(auto_now_add=True)),
                 ("last_updated", models.DateTimeField(auto_now=True)),
                 (
-                    "uuid",
+                    "policy_uuid",
                     models.UUIDField(
                         default=uuid.uuid4,
                         editable=False,
@@ -36,7 +38,7 @@ class Migration(migrations.Migration):
             name="PolicyBinding",
             fields=[
                 (
-                    "uuid",
+                    "policy_binding_uuid",
                     models.UUIDField(
                         default=uuid.uuid4,
                         editable=False,
@@ -64,23 +66,28 @@ class Migration(migrations.Migration):
             name="PolicyBindingModel",
             fields=[
                 (
-                    "id",
-                    models.AutoField(
-                        auto_created=True,
+                    "pbm_uuid",
+                    models.UUIDField(
+                        default=uuid.uuid4,
+                        editable=False,
                         primary_key=True,
                         serialize=False,
-                        verbose_name="ID",
                     ),
                 ),
                 (
                     "policies",
                     models.ManyToManyField(
-                        related_name="_policybindingmodel_policies_+",
+                        blank=True,
+                        related_name="bindings",
                         through="passbook_policies.PolicyBinding",
                         to="passbook_policies.Policy",
                     ),
                 ),
             ],
+            options={
+                "verbose_name": "Policy Binding Model",
+                "verbose_name_plural": "Policy Binding Models",
+            },
         ),
         migrations.AddField(
             model_name="policybinding",

passbook/policies/migrations/0002_auto_20200508_1230.py

@@ -1,20 +0,0 @@
-# Generated by Django 3.0.3 on 2020-05-08 12:30
-
-from django.db import migrations
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ("passbook_policies", "0001_initial"),
-    ]
-
-    operations = [
-        migrations.AlterModelOptions(
-            name="policybindingmodel",
-            options={
-                "verbose_name": "Policy Binding Model",
-                "verbose_name_plural": "Policy Binding Models",
-            },
-        ),
-    ]

passbook/policies/migrations/0003_auto_20200516_1516.py

@@ -1,23 +0,0 @@
-# Generated by Django 3.0.5 on 2020-05-16 15:16
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ("passbook_policies", "0002_auto_20200508_1230"),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name="policybindingmodel",
-            name="policies",
-            field=models.ManyToManyField(
-                blank=True,
-                related_name="_policybindingmodel_policies_+",
-                through="passbook_policies.PolicyBinding",
-                to="passbook_policies.Policy",
-            ),
-        ),
-    ]