From cf5ac68b09b8f7b45a6810524872460f60cf814f Mon Sep 17 00:00:00 2001
From: Henrik Levkowetz <henrik@levkowetz.com>
Date: Wed, 24 Aug 2016 15:37:25 +0000
Subject: [PATCH] Renumbered and updated the migrations merged in from the
 eventsaving work.  Made the dochistory-adding migration idempotent, and added
 progress indication as this migration may take as much as an hour to run.  -
 Legacy-Id: 11854

---
 .../doc/migrations/0012_auto_20160207_0537.py |  2 +-
 ...027_1127.py => 0013_auto_20151027_1127.py} | 31 ++++++++++++++++---
 ...930_0758.py => 0009_auto_20150930_0758.py} |  4 +--
 3 files changed, 29 insertions(+), 8 deletions(-)
 rename ietf/doc/migrations/{0011_auto_20151027_1127.py => 0013_auto_20151027_1127.py} (78%)
 rename ietf/group/migrations/{0007_auto_20150930_0758.py => 0009_auto_20150930_0758.py} (98%)

diff --git a/ietf/doc/migrations/0012_auto_20160207_0537.py b/ietf/doc/migrations/0012_auto_20160207_0537.py
index 85b239812..897799377 100644
--- a/ietf/doc/migrations/0012_auto_20160207_0537.py
+++ b/ietf/doc/migrations/0012_auto_20160207_0537.py
@@ -1,4 +1,4 @@
-# -*- coding: utf-8 -*-
+# -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
 from django.db import models, migrations
diff --git a/ietf/doc/migrations/0011_auto_20151027_1127.py b/ietf/doc/migrations/0013_auto_20151027_1127.py
similarity index 78%
rename from ietf/doc/migrations/0011_auto_20151027_1127.py
rename to ietf/doc/migrations/0013_auto_20151027_1127.py
index 7c58f84f3..01dce5678 100644
--- a/ietf/doc/migrations/0011_auto_20151027_1127.py
+++ b/ietf/doc/migrations/0013_auto_20151027_1127.py
@@ -1,6 +1,8 @@
-# -*- coding: utf-8 -*-
+# -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
+import sys
+
 from django.db import migrations
 
 def fix_buggy_author_foreignkey(apps, schema_editor):
@@ -17,6 +19,10 @@ def save_all_documents_in_history(apps, schema_editor):
     DocumentAuthor = apps.get_model("doc", "DocumentAuthor")
     DocHistoryAuthor = apps.get_model("doc", "DocHistoryAuthor")
 
+    sys.stderr.write('\n'
+                    '    Ensuring that all documents have document history entries.\n'
+                    '    This could take as much as an hour to run.\n')
+
     def canonical_name(self):
         name = self.name
         state = State.objects.filter(document=self, type_id=self.type_id).first()
@@ -38,6 +44,8 @@ def save_all_documents_in_history(apps, schema_editor):
 
     def save_document_in_history(doc):
         """Save a snapshot of document and related objects in the database."""
+
+
         def get_model_fields_as_dict(obj):
             return dict((field.name, getattr(obj, field.name))
                         for field in obj._meta.fields
@@ -48,8 +56,21 @@ def save_all_documents_in_history(apps, schema_editor):
         fields["doc"] = doc
         fields["name"] = canonical_name(doc)
 
-        dochist = DocHistory(**fields)
-        dochist.save()
+        objs = DocHistory.objects.filter(**fields)
+        if objs.exists():
+            try:
+                dochist = objs.get(**fields)
+                sys.stderr.write('.')
+            except DocHistory.MultipleObjectsReturned:
+                dochist_list = list(objs)
+                for dochist in dochist_list[1:]:
+                    dochist.delete()
+                dochist = dochist_list[0]
+                sys.stderr.write('-')
+        else:
+            dochist = DocHistory(**fields)
+            dochist.save()
+            sys.stderr.write('+')
 
         # copy many to many
         for field in doc._meta.many_to_many:
@@ -82,8 +103,8 @@ def save_all_documents_in_history(apps, schema_editor):
 class Migration(migrations.Migration):
 
     dependencies = [
-        ('doc', '0010_auto_20150930_0251'),
-        ('group', '0007_auto_20150930_0758'),
+        ('doc', '0012_auto_20160207_0537'),
+        ('group', '0009_auto_20150930_0758'),
     ]
 
     operations = [
diff --git a/ietf/group/migrations/0007_auto_20150930_0758.py b/ietf/group/migrations/0009_auto_20150930_0758.py
similarity index 98%
rename from ietf/group/migrations/0007_auto_20150930_0758.py
rename to ietf/group/migrations/0009_auto_20150930_0758.py
index 0515fb990..e84626a50 100644
--- a/ietf/group/migrations/0007_auto_20150930_0758.py
+++ b/ietf/group/migrations/0009_auto_20150930_0758.py
@@ -1,4 +1,4 @@
-# -*- coding: utf-8 -*-
+# -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 import os, datetime
 
@@ -108,7 +108,7 @@ class Migration(migrations.Migration):
 
     dependencies = [
         ('doc', '0010_auto_20150930_0251'),
-        ('group', '0006_auto_20150718_0509'),
+        ('group', '0008_auto_20160505_0523'),
     ]
 
     operations = [