some work in branches/join_models

- added FinderHelper class - used as a global object for the whole model tree in Finder
  (some fields moved from ModelData)
- added CursorHelper class - used as a global object for the whole model tree in Cursor
  (some fields moved from ModelData)







git-svn-id: svn://ttmath.org/publicrep/morm/branches/join_models@1192 e52654a7-88a9-db11-a3e9-0013d4bc506e

src/jsonexpression.cpp

@@ -137,6 +137,18 @@ void JSONExpression::put_name_value_separator()
 }
 
 
+void JSONExpression::before_field_value_list()
+{
+	(*out_stream) << "[";
+}
+
+
+void JSONExpression::after_field_value_list()
+{
+	(*out_stream) << "]";
+}
+
+
 void JSONExpression::esc(char val, PT::TextStream & stream)
 {
 	switch( val )