fixed issue 1160, show button for linked tables even if referenced column is not readable

VERSION

@@ -1 +1 @@
-Version 2.2.1 (2012-11-14 14:12:26) stable
+Version 2.2.1 (2012-11-14 14:59:57) stable

gluon/contrib/webclient.py

@@ -150,6 +150,8 @@ class WebClient(object):
                 match = self.session_regex.match(cookie)
                 if match:
                     name = match.group('name')
+                    print repr(cookie)
+                    print name, self.sessions.get(name,None), value
                     if name in self.sessions and self.sessions[name] != value:
                         raise RuntimeError('Broken sessions %s' % name)
                     self.sessions[name] = value

gluon/sqlhtml.py

@@ -2436,9 +2436,8 @@ class SQLFORM(FORM):
         check = {}
         id_field_name = table._id.name
         for rfield in table._referenced_by:
-            if rfield.readable:
-                check[rfield.tablename] = \
-                    check.get(rfield.tablename, []) + [rfield.name]
+            check[rfield.tablename] = \
+                check.get(rfield.tablename, []) + [rfield.name]
         if isinstance(linked_tables, dict):
             linked_tables = linked_tables.get(table._tablename, [])
         for tablename in sorted(check):