Improve Data Migration

Improved migration files so that they preserve data

Change-Id: I53283fd3fd207ed3f9773beea7b1ce2062b5bd9f
Signed-off-by: Parker Berberian <pberberian@iol.unh.edu>

4 files changed, 52 insertions, 26 deletions

diff --git a/src/api/migrations/0011_auto_20200218_1536.py b/src/api/migrations/0011_auto_20200218_1536.py
index a399495..0fd7029 100644
--- a/src/api/migrations/0011_auto_20200218_1536.py
+++ b/src/api/migrations/0011_auto_20200218_1536.py
@@ -3,14 +3,6 @@
 from django.db import migrations, models
 
 
-def set_resource_id(apps, schema_editor):
-    for cls in ["HardwareConfig", "NetworkConfig", "SnapshotConfig"]:
-        model = apps.get_model('api', cls)
-        for m in model.objects.all():
-            m.resource_id = m.host.labid
-            m.save()
-
-
 class Migration(migrations.Migration):
 
     dependencies = [
@@ -34,21 +26,4 @@ class Migration(migrations.Migration):
             name='resource_id',
             field=models.CharField(default='default_id', max_length=200),
         ),
-        migrations.RunPython(set_resource_id),
-        migrations.RemoveField(
-            model_name='hosthardwarerelation',
-            name='host',
-        ),
-        migrations.RemoveField(
-            model_name='hostnetworkrelation',
-            name='host',
-        ),
-        migrations.RemoveField(
-            model_name='snapshotconfig',
-            name='host',
-        ),
-        migrations.RemoveField(
-            model_name='opnfvapiconfig',
-            name='roles',
-        ),
     ]
diff --git a/src/api/migrations/0012_manual_20200218_1536.py b/src/api/migrations/0012_manual_20200218_1536.py
new file mode 100644
index 0000000..55befbd
--- /dev/null
+++ b/src/api/migrations/0012_manual_20200218_1536.py
@@ -0,0 +1,22 @@
+# Generated by Django 2.2 on 2020-02-18 15:36
+
+from django.db import migrations
+
+
+def set_resource_id(apps, schema_editor):
+    for cls in ["HostHardwareRelation", "HostNetworkRelation", "SnapshotConfig"]:
+        model = apps.get_model('api', cls)
+        for m in model.objects.all():
+            m.resource_id = m.host.labid
+            m.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('api', '0011_auto_20200218_1536'),
+    ]
+
+    operations = [
+        migrations.RunPython(set_resource_id),
+    ]
diff --git a/src/api/migrations/0013_manual_20200218_1536.py b/src/api/migrations/0013_manual_20200218_1536.py
new file mode 100644
index 0000000..0b76e84
--- /dev/null
+++ b/src/api/migrations/0013_manual_20200218_1536.py
@@ -0,0 +1,29 @@
+# Generated by Django 2.2 on 2020-02-18 15:36
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('api', '0012_manual_20200218_1536'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='hosthardwarerelation',
+            name='host',
+        ),
+        migrations.RemoveField(
+            model_name='hostnetworkrelation',
+            name='host',
+        ),
+        migrations.RemoveField(
+            model_name='snapshotconfig',
+            name='host',
+        ),
+        migrations.RemoveField(
+            model_name='opnfvapiconfig',
+            name='roles',
+        ),
+    ]
diff --git a/src/api/migrations/0012_manual_20200220.py b/src/api/migrations/0014_manual_20200220.py
index 40f7e79..2e2cd58 100644
--- a/src/api/migrations/0012_manual_20200220.py
+++ b/src/api/migrations/0014_manual_20200220.py
@@ -5,7 +5,7 @@ from django.db import migrations, models
 class Migration(migrations.Migration):
 
     dependencies = [
-        ('api', '0011_auto_20200218_1536'),
+        ('api', '0013_manual_20200218_1536'),
         ('resource_inventory', '0013_auto_20200218_1536')
     ]