some work in morm

- support for fetching rows from db
- support for inserting/updating rows



git-svn-id: svn://ttmath.org/publicrep/morm/trunk@1081 e52654a7-88a9-db11-a3e9-0013d4bc506e

src/baseexpression.cpp

@@ -63,15 +63,21 @@ void BaseExpression::set_work_mode(int work_mode)
 void BaseExpression::generate_from_model(PT::TextStream & stream, Model & model)
 {
 	this->out_stream = &stream;
-
-	before_generate_from_model();
-	model.map_fields();
-	after_generate_from_model();
-
+	generate_from_model(model);
 	this->out_stream = nullptr;
 }
 
 
+void BaseExpression::generate_from_model(Model & model)
+{
+	if( out_stream )
+	{
+		before_generate_from_model();
+		model.map_fields();
+		after_generate_from_model();
+	}
+}
+
 void BaseExpression::before_generate_from_model()
 {
 	is_first_field = true;
@@ -161,6 +167,14 @@ void BaseExpression::after_field_value(const char *)
 {
 }
 
+void BaseExpression::before_field_value(const PT::Date &)
+{
+}
+
+void BaseExpression::after_field_value(const PT::Date &)
+{
+}
+
 
 
 void BaseExpression::put_name_value_separator()
@@ -315,7 +329,7 @@ void BaseExpression::esc(void* val, PT::TextStream & stream)
 
 void BaseExpression::esc(const PT::Date & date, PT::TextStream & stream)
 {
-	stream << "'" << date << "'";
+	stream << date;
 }