carddestroydlg.cpp

小型图书管理系统

// CardDestroyDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Library_5.h"
#include "CardDestroyDlg.h"
#include "ManagerLandDlg.h"

#include "CardRS.h"
#include "BorrowRS.h"

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

/////////////////////////////////////////////////////////////////////////////
// CCardDestroyDlg dialog


CCardDestroyDlg::CCardDestroyDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CCardDestroyDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CCardDestroyDlg)
	m_strCardNum = _T("");
	//}}AFX_DATA_INIT
}


void CCardDestroyDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CCardDestroyDlg)
	DDX_Control(pDX, IDC_LIST_DETAIL, m_listDetail);
	DDX_Text(pDX, IDC_CARD_NUM, m_strCardNum);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CCardDestroyDlg, CDialog)
	//{{AFX_MSG_MAP(CCardDestroyDlg)
	ON_BN_CLICKED(ID_QUERY, OnQuery)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCardDestroyDlg message handlers

void CCardDestroyDlg::OnQuery() 
{
	UpdateData();

	m_listDetail.ResetContent();

	if (!m_cardSet.IsOpen())
	{
		m_cardSet.Open();
	}
	CString strFilter;

	strFilter.Format(" cno = '%s'",m_strCardNum);
	m_cardSet.m_strFilter=strFilter;
	m_cardSet.Requery();

	if(m_cardSet.IsEOF())
	{
		AfxMessageBox("您的卡号不存在");
		return ;
	}

	if(m_cardSet.m_flag=="挂失")
	{
		AfxMessageBox("您的借书证已挂失");
		return ;
	}


	CString strDetail;
	CString strLine;

	CString aColCaption[4];
	aColCaption[0]="卡号:    ";
	aColCaption[1]="姓名:    ";
	aColCaption[2]="单位:    ";
	aColCaption[3]="身份:    ";

	strLine.Empty();
	strLine+=aColCaption[0];
	strLine+=m_cardSet.m_cno;
	m_listDetail.AddString(strLine);
	
	strLine.Empty();
	strLine+=aColCaption[1];
	strLine+=m_cardSet.m_name;
	m_listDetail.AddString(strLine);
	
	strLine.Empty();
	strLine+=aColCaption[2];
	strLine+=m_cardSet.m_unit;
	m_listDetail.AddString(strLine);
	
	strLine.Empty();
	strLine+=aColCaption[3];
	strLine+=m_cardSet.m_rank;
	m_listDetail.AddString(strLine);



	// TODO: Add your control notification handler code here
	
}

void CCardDestroyDlg::OnOK() 
{

	CLibrary_5App *App = (CLibrary_5App *)AfxGetApp();
	CString managerNum=App->managerID;
	UpdateData();
	if(managerNum=="无管理员登录")
	{
		AfxMessageBox("无管理员登录，请先登录");
		CManagerLandDlg managerLandDlg;
		managerLandDlg.DoModal();
		if((managerNum=App->managerID)=="无管理员登录")
			return;
	}

	UpdateData();

	if(!m_cardSet.IsOpen())
	{
		m_cardSet.Open();
	}
	if(!m_borrowSet.IsOpen())
	{
		m_borrowSet.Open();
	}

	m_cardSet.m_strFilter.Format(" cno = '%s' ",m_strCardNum);
	m_cardSet.Requery();

	if(m_cardSet.IsEOF())
	{
		AfxMessageBox("卡号不存在!");
		return;
	}
	
	m_borrowSet.m_strFilter.Format(" cno = '%s' and return_date is null" , m_strCardNum);
	m_borrowSet.Requery();

	if(!m_borrowSet.IsEOF())
	{
		AfxMessageBox("此卡还有图书未归还，无法注销!");
		return;
	}
	else
	{
		m_borrowSet.m_strFilter.Format(" cno = '%s' ",m_strCardNum);
		m_borrowSet.Requery();
		while(!m_borrowSet.IsEOF())
		{
			m_borrowSet.Delete();
			UpdateData();
			m_borrowSet.m_strFilter.Format(" cno = '%s' ",m_strCardNum);
			m_borrowSet.Requery();

		}

		m_cardSet.Delete();		
		AfxMessageBox("注销成功!");
	}

	// TODO: Add extra validation here
	
	CDialog::OnOK();
}