fixed missing dropdowns, thanks Alan

VERSION

@@ -1 +1 @@
-Version 2.00.0 (2012-08-19 13:53:42) dev
+Version 2.00.0 (2012-08-19 15:02:35) dev

gluon/dal.py

@@ -6763,7 +6763,7 @@ def index():
                         patterns += auto_table(rtable,base=tag,depth=depth-1)
             return patterns
 
-        if patterns=='auto':
+        if patterns==DEFAULT:
             patterns=[]
             for table in db.tables:
                 if not table.startswith('auth_'):
@@ -7283,7 +7283,7 @@ class Table(dict):
             if self._db and not field.type in ('text','blob') and \
                     self._db._adapter.maxcharlength < field.length:
                 field.length = self._db._adapter.maxcharlength
-            if field.requires is DEFAULT:
+            if field.requires == DEFAULT:
                 field.requires = sqlhtml_validators(field)
         self.ALL = SQLALL(self)
 
@@ -8069,7 +8069,7 @@ class Field(Expression):
         length=None,
         default=DEFAULT,
         required=False,
-        requires=None,
+        requires=DEFAULT,
         ondelete='CASCADE',
         notnull=False,
         unique=False,