config_db.cpp

bool config_db::update_from_csv(const char* csv_file)
{
	try {
		vector< vector<string> > data_table;
		ifstream ifs(csv_file);
		while (ifs) {
			string line;
			getline(ifs, line);
			vector<string> tokens;
			// splits line string delimited by ",", and save to tokens.
			boost::split(tokens, line, is_any_of(","));
			// push row
			data_table.push_back(vector<string>());
			data_table.back().swap(tokens);
		}
		// above may throw
		this->data_table_.swap(data_table); // nothrow
		return true;
	}
	catch (...) {
		return false;
	}
}