fixed problem with lazy tables and self references

gluon/dal.py

@@ -7174,7 +7174,12 @@ def index():
         table = table_class(self, tablename, *fields, **args)
         table._actual = True
         self[tablename] = table
-        table._create_references() # must follow above line to handle self references
+        # fix self refrences
+        for field in table:
+            if field.requires == DEFAULT:
+                field.requires = sqlhtml_validators(field)
+        # must follow above line to handle self references
+        table._create_references() 
 
         migrate = self._migrate_enabled and args_get('migrate',self._migrate)
         if migrate and not self._uri in (None,'None') \
@@ -7591,7 +7596,10 @@ class Table(object):
                     db._adapter.maxcharlength < field.length:
                 field.length = db._adapter.maxcharlength
             if field.requires == DEFAULT:
-                field.requires = sqlhtml_validators(field)
+                try:
+                    field.requires = sqlhtml_validators(field)
+                except AttributeError:
+                    pass                    
         self.ALL = SQLALL(self)
 
         if hasattr(self,'_primarykey'):