added: Finder::prefix() method

code not thoroughly tested



git-svn-id: svn://ttmath.org/publicrep/morm/trunk@1106 e52654a7-88a9-db11-a3e9-0013d4bc506e

src/baseexpression.h

@@ -56,6 +56,9 @@ public:
 	virtual ~BaseExpression();
 
 	virtual void set_work_mode(int work_mode);
+	virtual void prepare_to_new_expression();
+	virtual void set_column_prefix(const std::wstring & prefix);
+
 	virtual void generate_from_model(PT::TextStream & stream, Model & model);
 
 	template<typename FieldValue>
@@ -219,6 +222,9 @@ protected:
 	// przyda sie do formatowania doubli
 	PT::TextStream * out_stream;
 
+
+	std::wstring column_prefix;
+
 //	virtual void map_fields(Model * model)
 //	{
 //		work_mode = model->work_mode;