to make DateTimeKey accept None value and to make it generate "is NULL"

expressions


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@27825 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ZSQLCatalog/SearchKey/DateTimeKey.py

@@ -54,6 +54,8 @@ def _DateTime(*args, **kw):
 
 @profiler_decorator
 def castDate(value):
+  if value is None:
+    return None
   date_kw = {'datefmt': 'international'}
   if isinstance(value, dict):
     # Convert value into a DateTime, and guess desired delta from what user

product/ZSQLCatalog/tests/testSQLCatalog.py

@@ -277,6 +277,8 @@ class TestSQLCatalog(unittest.TestCase):
                    ReferenceQuery(operator='<', date=DateTime('2008/02/02 10:10:11 UTC'))
                  , operator='and'), operator='and'),
                  {column: '2008/02/02 10:10:10 UTC'})
+    self.catalog(ReferenceQuery(ReferenceQuery(operator='is', date=None), operator='and'),
+                 {column: None}, check_search_text=False)
         
   def test_DateTimeKey(self):
     self._testDateTimeKey('date')