# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@logilab.fr>
# Date 1366722996 -7200
# Node ID c7a95ebcc0934e7bb0221b5f110c68eb5e9bab8a
# Parent  c570d15dce7bca7b68492e53b1231d252043c469
[entity] add an official ``cw_etype`` property for entity

This property holds the CWEtype id of the entity. This information was previously
available through __regid__ but this is an ugly public API. So we have a new
clean public API. The ``dc_type()`` method could not be used as it is
translated.

(closes #2793792)

diff -r c570d15dce7b -r c7a95ebcc093 entities/__init__.py
--- a/entities/__init__.py	Tue Apr 23 12:38:27 2013 +0200
+++ b/entities/__init__.py	Tue Apr 23 15:16:36 2013 +0200
@@ -22,7 +22,7 @@
 from warnings import warn
 
 from logilab.common.deprecation import deprecated
-from logilab.common.decorators import cached
+from logilab.common.decorators import cached, classproperty
 
 from cubicweb import Unauthorized
 from cubicweb.entity import Entity
@@ -60,6 +60,11 @@
 
     # meta data api ###########################################################
 
+    @classproperty
+    def cw_etype(self):
+        """entity Etype as a string"""
+        return self.__regid__
+
     def dc_title(self):
         """return a suitable *unicode* title for this entity"""
         for rschema, attrschema in self.e_schema.attribute_definitions():
diff -r c570d15dce7b -r c7a95ebcc093 entities/test/unittest_base.py
--- a/entities/test/unittest_base.py	Tue Apr 23 12:38:27 2013 +0200
+++ b/entities/test/unittest_base.py	Tue Apr 23 15:16:36 2013 +0200
@@ -48,8 +48,13 @@
         self.assertEqual(entity.dc_creator(), u'member')
 
     def test_type(self):
+        #dc_type may be translated
         self.assertEqual(self.member.dc_type(), 'CWUser')
 
+    def test_cw_etype(self):
+        #cw_etype is never translated
+        self.assertEqual(self.member.cw_etype, 'CWUser')
+
     def test_entity_meta_attributes(self):
         # XXX move to yams
         self.assertEqual(self.schema['CWUser'].meta_attributes(), {})
@@ -172,7 +177,7 @@
                 self.assertEqual(eclass.__bases__[0].__bases__, (Foo,))
         # check Division eclass is still selected for plain Division entities
         eclass = self.select_eclass('Division')
-        self.assertEqual(eclass.__regid__, 'Division')
+        self.assertEqual(eclass.cw_etype, 'Division')
 
 if __name__ == '__main__':
     unittest_main()