added BaseExpression::is_long_field_name()

added BaseExpression::need_to_add_field_prefix()
      now the fields() methods don't take add_column_prefix parameter
      but the field_name (wchar_t*) is tested whether is it a long (with a period) or short name
added BaseExpression::save_foreign_key() (code moved from field())
removed some default method arguments from BaseExpression
added neq() method for Finder
added DbExpression::prepare_short_table_name(const PT::TextStream & table_name, PT::TextStream & short_table_name)




git-svn-id: svn://ttmath.org/publicrep/morm/branches/join_models@1194 e52654a7-88a9-db11-a3e9-0013d4bc506e

src/dbexpression.h

@@ -71,10 +71,15 @@ public:
 		column_expression += L" as ";
 		column_expression += new_column_name;
 
-		field(column_expression.c_str(), field_value, false, false, false, false);
+		// put nullptr to ModelEnv* to not allow to use prefix
+		// or may better remember current value of use_prefix and set it to false for a while?
+		field(column_expression.c_str(), field_value, false, false, false, nullptr);
 	}
 
 
+	virtual void prepare_short_table_name(const PT::TextStream & table_name, PT::TextStream & short_table_name);
+
+
 protected:
 
 	int output_type;