Data importer: add value formaters based on Python format() string

1 files changed, 20 insertions, 0 deletions

diff --git a/ishtar_common/model_managers.py b/ishtar_common/model_managers.py
new file mode 100644
index 000000000..ae0264ced
--- /dev/null
+++ b/ishtar_common/model_managers.py
@@ -0,0 +1,20 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+
+from django.contrib.gis.db.models import Manager, GeoManager
+
+
+class ExternalIdManager(GeoManager):
+    def get_by_natural_key(self, external_id):
+        return self.get(external_id=external_id)
+
+
+class TypeManager(Manager):
+    def get_by_natural_key(self, txt_idx):
+        return self.get(txt_idx=txt_idx)
+
+
+class SlugModelManager(Manager):
+    def get_by_natural_key(self, slug):
+        return self.get(slug=slug)