more arrow stuff

indigo_api/migrations/0021_document_expression_date.py

@@ -1,12 +1,12 @@
 # -*- coding: utf-8 -*-
-import arrow
 from django.db import models, migrations
 from indigo_api.models import Document
+from django.utils.timezone import now
 
 
 def forwards(apps, schema_editor):
     for doc in Document.objects.select_related(None).only('document_xml', 'expression_date').all():
-        doc.expression_date = doc.publication_date or arrow.now().date()
+        doc.expression_date = doc.publication_date or now().date()
         doc.save()
 
 

indigo_api/migrations/0042_add_repeal_works.py

@@ -3,7 +3,7 @@
 from django.db import migrations
 
 from cobalt.act import datestring
-import arrow
+from iso8601 import parse_date
 
 
 def create_repeals(apps, schema_editor):
@@ -18,7 +18,7 @@ def create_repeals(apps, schema_editor):
 
     for doc in documents:
         if doc.repeal_event:
-            date = arrow.get(doc.repeal_event['date']).date()
+            date = parse_date(doc.repeal_event['date']).date()
 
             work = works.get(doc.repeal_event['repealing_uri'])
             if not work:

indigo_api/migrations/0046_works_for_amendments.py

@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # Generated by Django 1.11.8 on 2018-04-16 14:56
 from django.db import migrations
-import arrow
+from iso8601 import parse_date
 
 from cobalt.act import FrbrUri
 
@@ -19,7 +19,7 @@ def create_amendments(apps, schema_editor):
     for doc in documents:
         for amendment in (doc.amendment_events or []):
             work = works.get(amendment['amending_uri'])
-            date = arrow.get(amendment['date']).date()
+            date = parse_date(amendment['date']).date()
 
             if not work:
                 # validate frbr_uri