orderFile.cpp

#include"orderFile.h"

//构造函数
OrderFile::OrderFile() {
	ifstream ifs;
	ifs.open(ORDER_FILE, ios::in);

	string date;     //日期
	string interval; //时间段
	string stuId;    //学生编号
	string stuName;  //学生姓名
	string roomId;   //机房编号
	string status;   //预约状态

	this->m_Size = 0; //记录条数

	while (ifs >> date && ifs >> interval && ifs 
		>> stuId && ifs >> stuName && ifs >> roomId && ifs >> status) {
		/*cout << date << endl;
		cout << interval << endl;
		cout << stuId << endl;
		cout << stuName << endl;
		cout << roomId << endl;
		cout << status << endl;
		cout << endl;*/

		string key;
		string value;
		map<string, string>m;

		//截取日期
		int pos = date.find(":"); // 4
		if (pos != -1) {
			key = date.substr(0, pos);
			value = date.substr(pos + 1, date.size() - pos - 1);

			m.insert(make_pair(key, value));
		}
		/*cout << "key = " << key << endl;
		cout << "value = " << value << endl;*/
		//截取时间段
		pos = interval.find(":");
		if (pos != -1) {
			key = interval.substr(0, pos);
			value = interval.substr(pos + 1, interval.size() - pos - 1);

			m.insert(make_pair(key, value));
		}
		//截取学号
		pos = stuId.find(":");
		if (pos != -1) {
			key = stuId.substr(0, pos);
			value = stuId.substr(pos + 1, stuId.size() - pos - 1);

			m.insert(make_pair(key, value));
		}
		//截取姓名
		pos = stuName.find(":");
		if (pos != -1) {
			key = stuName.substr(0, pos);
			value = stuName.substr(pos + 1, stuName.size() - pos - 1);

			m.insert(make_pair(key, value));
		}
		//截取机房号
		pos = roomId.find(":");
		if (pos != -1) {
			key = roomId.substr(0, pos);
			value = roomId.substr(pos + 1, roomId.size() - pos - 1);

			m.insert(make_pair(key, value));
		}
		//截取预约状态
		pos = status.find(":");
		if (pos != -1) {
			key = status.substr(0, pos);
			value = status.substr(pos + 1, status.size() - pos - 1);

			m.insert(make_pair(key, value));
		}

		//将小map容器放入大的map容器中
		this->m_orderData.insert(make_pair(this->m_Size, m));
		this->m_Size++;
	}
	ifs.close();

	//测试最大的map容器
	/*for (map<int, map<string, string>>::iterator it = m_orderData.begin();it != m_orderData.end();it++) {
		cout << "条数为 = " << it->first << "\tvalue = " << endl;
		for (map<string, string>::iterator mit = (*it).second.begin(); mit != it->second.end();mit++) {
			cout << "key = " << mit->first << "\tvalue = " << mit->second << "\t";
		}
		cout << endl;
	}*/
}

//更新预约记录
void OrderFile::updateOrder() {
	if (this->m_Size == 0) {
		return; //预约记录0 条，直接return
	}

	ofstream ofs(ORDER_FILE, ios::out | ios::trunc);
	for (int i = 0;i < this->m_Size;i++) {
		ofs << "data:" << this->m_orderData[i]["data"] << " ";
		ofs << "interval:" << this->m_orderData[i]["interval"] << " ";
		ofs << "stuId:" << this->m_orderData[i]["stuId"] << " ";
		ofs << "stuName:" << this->m_orderData[i]["stuName"] << " ";
		ofs << "roomId:" << this->m_orderData[i]["roomId"] << " ";
		ofs << "status:" << this->m_orderData[i]["status"] << endl;

	}
	ofs.close();
}