Indicate non-coverage areas, remove outdated compatability fixes

README.rst

@@ -16,7 +16,7 @@ django-simple-history
 
 django-simple-history stores Django model state on every create/update/delete.
 
-This app requires Django 1.4 or greater and Python 2.6 or greater.
+This app requires Django 1.4.2 or greater and Python 2.6 or greater.
 
 Getting Help
 ------------

simple_history/admin.py

@@ -11,15 +11,12 @@
 from django.utils.text import capfirst
 from django.utils.html import mark_safe
 from django.utils.translation import ugettext as _
-try:
-    from django.utils.encoding import force_text
-except ImportError:  # django 1.3 compatibility
-    from django.utils.encoding import force_unicode as force_text
+from django.utils.encoding import force_text
 from django.conf import settings
 
 try:
     USER_NATURAL_KEY = settings.AUTH_USER_MODEL
-except AttributeError:
+except AttributeError:  # Django < 1.5
     USER_NATURAL_KEY = "auth.User"
 USER_NATURAL_KEY = tuple(key.lower() for key in USER_NATURAL_KEY.split('.', 1))
 
@@ -35,7 +32,7 @@ def get_urls(self):
         opts = self.model._meta
         try:
             info = opts.app_label, opts.model_name
-        except AttributeError:
+        except AttributeError:  # Django < 1.7
             info = opts.app_label, opts.module_name
         history_urls = patterns(
             "",
@@ -115,7 +112,7 @@ def history_form_view(self, request, object_id, version_id):
 
         try:
             model_name = original_opts.model_name
-        except AttributeError:
+        except AttributeError:  # Django < 1.7
             model_name = original_opts.module_name
         url_triplet = self.admin_site.name, original_opts.app_label, model_name
         context = {

simple_history/management/commands/_populate_utils.py

@@ -1,9 +1,4 @@
-try:
-    from django.utils.timezone import now
-except ImportError:     # pragma: no cover
-    from datetime import datetime
-    now = datetime.now
-from django.db import transaction
+from django.utils.timezone import now
 
 
 class NotHistorical(TypeError):
@@ -29,10 +24,4 @@ def bulk_history_create(model, history_model):
             **dict((field.attname, getattr(instance, field.attname))
                    for field in instance._meta.fields)
         ) for instance in model.objects.all()]
-    try:
-        history_model.objects.bulk_create(historical_instances)
-    except AttributeError:  # pragma: no cover
-        # bulk_create was added in Django 1.4, handle legacy versions
-        with transaction.commit_on_success():
-            for instance in historical_instances:
-                instance.save()
+    history_model.objects.bulk_create(historical_instances)

simple_history/management/commands/populate_history.py

@@ -75,8 +75,7 @@ def _model_from_natural_key(self, natural_key):
         else:
             try:
                 model = get_model(app_label, model)
-                # Django 1.7 raises a LookupError
-            except LookupError:     # pragma: no cover
+            except LookupError:  # Django >= 1.7
                 model = None
         if not model:
             raise ValueError(self.MODEL_NOT_FOUND +

simple_history/manager.py

@@ -22,7 +22,7 @@ def __init__(self, model, instance=None):
     def get_super_queryset(self):
         try:
             return super(HistoryManager, self).get_queryset()
-        except AttributeError:
+        except AttributeError:  # Django < 1.6
             return super(HistoryManager, self).get_query_set()
 
     def get_queryset(self):

simple_history/models.py

@@ -3,8 +3,8 @@
 import threading
 import copy
 try:
-    from django.apps import apps  # Django >= 1.7
-except ImportError:
+    from django.apps import apps
+except ImportError:  # Django < 1.7
     apps = None
 from django.db import models, router
 from django.db.models import loading
@@ -15,21 +15,14 @@
 from django.contrib import admin
 from django.utils import importlib, six
 from django.utils.encoding import python_2_unicode_compatible
-try:
-    from django.utils.encoding import smart_text
-except ImportError:
-    from django.utils.encoding import smart_unicode as smart_text
-try:
-    from django.utils.timezone import now
-except ImportError:
-    from datetime import datetime
-    now = datetime.now
+from django.utils.encoding import smart_text
+from django.utils.timezone import now
 from django.utils.translation import string_concat
 try:
     from south.modelsinspector import add_introspection_rules
-except ImportError:
+except ImportError:  # south not present
     pass
-else:
+else:  # south configuration for CustomForeignKeyField
     add_introspection_rules(
         [], ["^simple_history.models.CustomForeignKeyField"])
 from .manager import HistoryDescriptor
@@ -100,7 +93,7 @@ def create_history_model(self, model):
             # registered under different app
             attrs['__module__'] = self.module
         elif app_module != self.module:
-            if apps is None:
+            if apps is None:  # Django < 1.7
                 # has meta options with app_label
                 app = loading.get_app(model._meta.app_label)
                 attrs['__module__'] = app.__name__  # full dotted name
@@ -154,7 +147,7 @@ def revert_url(self):
             opts = model._meta
             try:
                 app_label, model_name = opts.app_label, opts.model_name
-            except AttributeError:
+            except AttributeError:  # Django < 1.7
                 app_label, model_name = opts.app_label, opts.module_name
             return ('%s:%s_%s_simple_history' %
                     (admin.site.name, app_label, model_name),