bugs.cpp

VC++做的汽车维修管理系统,很有参考价值的,附上源码与说明文档.

// Bugs.cpp: implementation of the CBugs class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "CarService.h"
#include "Bugs.h"
#include "ADOConn.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CBugs::CBugs()
{
	BugId = 0;
	BugName = "";
	BDetail = "";
	SDetail = "";
}

CBugs::~CBugs()
{

}
// 判断指定的项目名称是否存在
int CBugs::HaveName(CString paraName)
{	
	//连接数据库
	ADOConn m_AdoConn;
	m_AdoConn.OnInitADOConn();
	
	//设置SELECT语句
	_bstr_t vSQL;
	vSQL = "SELECT * FROM Bugs WHERE BugName = '" + paraName + "'";
	
	//执行SELECT语句
	_RecordsetPtr m_pRecordset;
	m_pRecordset = m_AdoConn.GetRecordSet(vSQL);
	
	if (m_pRecordset->adoEOF)
		return -1;
	else
		return 1;
	
	//断开与数据库的连接
	m_AdoConn.ExitConnect();
}

// 根据项目编号得到其他信息
void CBugs::GetInfo(CString paraId)
{
	//连接数据库
	ADOConn m_AdoConn;
	m_AdoConn.OnInitADOConn();

	//设置SELECT语句
	_bstr_t vSQL;
	vSQL = "SELECT * FROM Bugs WHERE BugId = " + paraId;

	//执行SELETE语句
	_RecordsetPtr m_pRecordset;
	m_pRecordset = m_AdoConn.GetRecordSet(vSQL);

	//返回各列的值
	if (m_pRecordset->adoEOF)
		CBugs();
	else
	{
		BugId = atol((LPCTSTR)(_bstr_t)m_pRecordset->GetCollect("BugId"));
		BugName = (LPCTSTR)(_bstr_t)m_pRecordset->GetCollect("BugName");
		BDetail = (LPCTSTR)(_bstr_t)m_pRecordset->GetCollect("BDetail");
		SDetail = (LPCTSTR)(_bstr_t)m_pRecordset->GetCollect("SDetail");
	}

	//断开与数据库的连接
	m_AdoConn.ExitConnect();
}

// 插入操作
void CBugs::SqlInsert()
{
	//连接数据库
	ADOConn m_AdoConn;
	m_AdoConn.OnInitADOConn();

	//设置INSERT语句
	_bstr_t vSQL;
	vSQL = "INSERT INTO Bugs VALUES('" + BugName + "','" + BDetail + "','" 
		+ SDetail + "')";

	//执行INSERT语句
	m_AdoConn.ExecuteSQL(vSQL);	

	//断开与数据库的连接
	m_AdoConn.ExitConnect();
}

// 修改操作
void CBugs::SqlUpdate(CString paraId)
{
	//连接数据库
	ADOConn m_AdoConn;
	m_AdoConn.OnInitADOConn();

	//设置UPDATE语句
	_bstr_t vSQL;
	vSQL = "UPDATE Bugs SET BugName='" + BugName + "', BDetail='" + BDetail
		+ "', SDetail='" + SDetail + "' WHERE BugId = " + paraId;

	//执行UPDATE语句
	m_AdoConn.ExecuteSQL(vSQL);

	//断开与数据库的连接
	m_AdoConn.ExitConnect();
}

// 删除操作
void CBugs::SqlDelete(CString paraId)
{
	//连接数据库
	ADOConn m_AdoConn;
	m_AdoConn.OnInitADOConn();

	//设置DELETE语句
	_bstr_t vSQL;
	vSQL = "DELETE FROM Bugs WHERE BugId = " + paraId;

	//执行DELETE语句
	m_AdoConn.ExecuteSQL(vSQL);	

	//断开与数据库的连接
	m_AdoConn.ExitConnect();
}