- Fixed bug in history_meta.py example where

the "unique" flag was not removed from a
single-table-inheritance subclass which
generates columns to put up onto the base.

2 files changed, 7 insertions, 1 deletions

diff --git a/examples/versioning/history_meta.py b/examples/versioning/history_meta.py
index 5f3820f68..9544451ee 100644
--- a/examples/versioning/history_meta.py
+++ b/examples/versioning/history_meta.py
@@ -60,6 +60,7 @@ def _history_mapper(local_mapper):
         for column in local_mapper.local_table.c:
             if column.key not in super_history_mapper.local_table.c:
                 col = column.copy()
+                col.unique = False
                 super_history_mapper.local_table.append_column(col)
         table = None
 
diff --git a/examples/versioning/test_versioning.py b/examples/versioning/test_versioning.py
index 5baf09530..d91f12037 100644
--- a/examples/versioning/test_versioning.py
+++ b/examples/versioning/test_versioning.py
@@ -228,7 +228,7 @@ class TestVersioning(TestCase):
 
         class SubClass(BaseClass):
 
-            subname = Column(String(50))
+            subname = Column(String(50), unique=True)
             __mapper_args__ = {'polymorphic_identity':'sub'}
 
         self.create_tables()
@@ -263,6 +263,11 @@ class TestVersioning(TestCase):
             ]
         )
 
+        # test the unique constraint on the subclass
+        # column
+        sc.name ="modifyagain"
+        sess.flush()
+
     def test_unique(self):
         class SomeClass(Versioned, Base, ComparableEntity):
             __tablename__ = 'sometable'