C++ Course::getId方法代码示例

void FileStorage::updateCourse(Course c){
	string search_string = to_string(c.getId());
	string replace_string = search_string + " " + c.getName() + " " + c.getDescription() + " ";
	for (vector<string>::size_type i = 0; i != c.getPreCourses().size(); i++) {
		replace_string += c.getPreCourses()[i] + " ";
	}
	replace_string += " $ " + to_string(c.getMaxStudents()); 

	string inbuf;
	fstream input_file(this->file_name, ios::in);
	ofstream output_file("result.txt");
	//Check for Error
	if (input_file.fail()){
		cerr << "Error Opening Data File";
		exit(1);
	}
	while (!input_file.eof()){
		getline(input_file, inbuf);

		int spot = inbuf.find(search_string);
		if (spot >= 0){
			string tmpstring = inbuf.substr(0, spot);
			tmpstring += replace_string;
			tmpstring += inbuf.substr(spot + inbuf.length(), inbuf.length());
			inbuf = tmpstring;
		}

		output_file << inbuf << endl;
	}
	input_file.close();
	output_file.close();

	int result;
	char oldname[] = "result.txt";
	char newname[] = "data.txt";
	remove(newname);
	result = rename(oldname, newname);
	if (result == 0)
		puts("File successfully updated\n");
	else
		perror("Course update error: Error renaming file\n");
}

// check if course is valid and show it in the screen
int displayAllAvailableCourses(SeasonConfig & seasonConfig, Course & course) {
	system("cls");
	bool print;
	int count = 0;
	cout << "List of courses : \n\n";
	for (int i = 0; i < seasonConfig.courses.count(); i++) {
		print = true;
		for (int j = 0; j < course.pre.count(); j++) {
			if (seasonConfig.courses.get(i).getId() == course.pre.get(j).getId()) {
				print = false;
			}

		}
		if (print && seasonConfig.courses.get(i).getId() != course.getId()) {
			count++;
			cout << i << ": " << seasonConfig.courses.get(i).name.get() << endl;
		}

	}
	cout << endl << endl << endl;
	return count;
}

/**
 * Write a course file.
 * @param course A Course.
 * @param file_path The target file path.
 * @throw FileException, XmlException
 */
void writeCourse(const Course& course, const QString& file_path)
{
	QFile output(file_path);
	if (!output.open(QIODevice::WriteOnly))
	{
		throw FileException("Cannot open file for writing", output.fileName());
	}

	QXmlStreamWriter writer(&output);
	writer.setAutoFormatting(true);
	writer.setAutoFormattingIndent(1);

	writer.writeStartDocument();

	writer.writeStartElement("course");

	writer.writeStartElement("id");
	writer.writeCharacters(course.getId().toString());
	writer.writeEndElement();

	writer.writeStartElement("title");
	writer.writeCharacters(course.getTitle());
	writer.writeEndElement();

	writer.writeStartElement("description");
	writer.writeCharacters(course.getDescription());
	writer.writeEndElement();

	writer.writeStartElement("keyboardLayout");
	// TODO: Add keyboardLayout
	writer.writeEndElement();

	writer.writeStartElement("lessons");
	for (const auto& it :course)
	{
		writer.writeStartElement("lesson");

		writer.writeStartElement("id");
		writer.writeCharacters(it->getId().toString());
		writer.writeEndElement();

		writer.writeStartElement("title");
		writer.writeCharacters(it->getTitle());
		writer.writeEndElement();

		writer.writeStartElement("newCharacters");
		writer.writeCharacters(it->getNewChars());
		writer.writeEndElement();

		writer.writeStartElement("text");
		writer.writeCharacters(it->getText());
		writer.writeEndElement();

		writer.writeEndElement(); // </lesson>
	}
	writer.writeEndElement(); // </lessons>

	writer.writeEndElement(); // </course>

	writer.writeEndDocument();
}