cardedit.cpp

同学编写的图书馆管理系统（数据库原理大作业）

// CardEdit.cpp : implementation file
//

#include "stdafx.h"
#include "LIBRARY.h"
#include "CardEdit.h"
#include "CardRS.h"

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

/////////////////////////////////////////////////////////////////////////////
// CCardEdit dialog


CCardEdit::CCardEdit(CWnd* pParent /*=NULL*/)
	: CDialog(CCardEdit::IDD, pParent)
{
	//{{AFX_DATA_INIT(CCardEdit)
	m_strcname = _T("");
	m_strcno = _T("");
	m_strdep = _T("");
	m_strtype = _T("");
	//}}AFX_DATA_INIT
}

void CCardEdit::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CCardEdit)
	DDX_Text(pDX, IDC_EDITCARD_CNAME, m_strcname);
	DDX_Text(pDX, IDC_EDITCARD_CNO, m_strcno);
	DDX_Text(pDX, IDC_EDITCARD_DEP, m_strdep);
	DDX_CBString(pDX, IDC_EDITCARD_TYPE, m_strtype);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CCardEdit, CDialog)
	//{{AFX_MSG_MAP(CCardEdit)
	ON_BN_CLICKED(IDDELETE, OnDelete)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCardEdit message handlers



void CCardEdit::UpdateString(CString a, CString b, CString c, CString d)
{
	m_strcno = a;	
	m_strcname = b;
	m_strdep = c;
	m_strtype = d;
}

void CCardEdit::OnOK() 
{
	// TODO: Add extra validation here
	UpdateData();
	if (!m_cardSet.IsOpen())
		m_cardSet.Open();
	m_cardSet.m_strFilter.Format("cno='%s'",m_strcno);
	m_cardSet.Requery();
	m_cardSet.Edit();
	m_cardSet.m_cname=m_strcname;
	m_cardSet.m_department=m_strdep;
	m_cardSet.m_ctype=m_strtype;
	m_cardSet.Update();
	m_cardSet.Requery();
	AfxMessageBox("数据更新成功！");
	CDialog::OnOK();
}

void CCardEdit::OnDelete() 
{
	// TODO: Add your control notification handler code here
	UpdateData();
	if (!m_borrowSet.IsOpen())
		m_borrowSet.Open();
	m_borrowSet.m_strFilter.Format("cno='%s' and return_date is null",m_strcno);
	m_borrowSet.Requery();
	if (!m_borrowSet.IsEOF())
	{
		AfxMessageBox("您还有未还书籍，归还图书后才能注销。");
		return;
	}
	if (!m_borrowSet.IsOpen())
		m_borrowSet.Open();
	m_borrowSet.m_strFilter.Format("cno='%s'",m_strcno);
	m_borrowSet.Requery();
	while (!m_borrowSet.IsEOF())
	{
		m_borrowSet.Delete();
		m_borrowSet.MoveNext();
	}
	if (!m_cardSet.IsOpen())
		m_cardSet.Open();
	m_cardSet.m_strFilter.Format("cno='%s'",m_strcno);
	m_cardSet.Requery();
	m_cardSet.Delete();
	AfxMessageBox("注销成功！");
	CDialog::OnOK();
}