Added require_ready argument to get_model methods.

This allows bringing back the behavior of Django < 1.7.

Also fixed the check for the app registry being ready in
AppConfig.get_model(s), which was inconsistent with the equivalent check in
Apps.get_model(s). That part is a backwards-incompatible change.

1 files changed, 5 insertions, 2 deletions

diff --git a/django/apps/config.py b/django/apps/config.py
index 72c5121411..14925cd1ce 100644
--- a/django/apps/config.py
+++ b/django/apps/config.py
@@ -155,13 +155,16 @@ class AppConfig(object):
         # Entry is a path to an app config class.
         return cls(app_name, app_module)
 
-    def get_model(self, model_name):
+    def get_model(self, model_name, require_ready=True):
         """
         Returns the model with the given case-insensitive model_name.
 
         Raises LookupError if no model exists with this name.
         """
-        self.apps.check_models_ready()
+        if require_ready:
+            self.apps.check_models_ready()
+        else:
+            self.apps.check_apps_ready()
         try:
             return self.models[model_name.lower()]
         except KeyError: