logdlg.cpp

用CJ60Lib界面库制作的SQL数据库客户与服务器程序。

// LogDlg.cpp : implementation file
//

#include "stdafx.h"
#include "miniSQL.h"
#include "LogDlg.h"
#include "UserDoc.h"
#include "Error.h"

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

extern CMiniSQLApp theApp;

/////////////////////////////////////////////////////////////////////////////
// CLogDlg dialog


CLogDlg::CLogDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CLogDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CLogDlg)
	m_code = _T("");
	m_user = _T("");
	//}}AFX_DATA_INIT
}


void CLogDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CLogDlg)
	DDX_Text(pDX, IDC_EDIT_CODE, m_code);
	DDV_MaxChars(pDX, m_code, 16);
	DDX_Text(pDX, IDC_EDIT_USER, m_user);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CLogDlg, CDialog)
	//{{AFX_MSG_MAP(CLogDlg)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CLogDlg message handlers

DWORD CLogDlg::GetType()
{
	if( m_user == _T("admin") && m_code == _T("admin") )
	{
		NoUserData();
		return LOG_ADMIN;
	}
	else if( m_user == _T("superuser") && m_code == _T("superuser") )
	{
		NoUserData();
		return LOG_SUPERUSER;
	}
	else if( m_user == _T("user") && m_code == _T("user") )
	{
		NoUserData();
		return LOG_USER;
	}
	else 
	{
		CFileStatus status;
		CString path( theApp.dir );
		path += "\\user.dat";

		if( CFile::GetStatus( path, status ) )
		{
			CFile File( path, CFile::modeRead );
			CArchive ar( &File, CArchive::load );

			int length = 0;
				ar>>length;

			for( int i = 0; i < length; i++ )
			{
				CUser user;
				user.Serialize( ar );
				if( m_user == user.m_user && m_code == user.m_code )
					return user.m_type;
			}
			return 0;
		}
		else
		{
			CFile File( path, CFile::modeCreate | CFile::modeWrite );
			CArchive ar( &File, CArchive::store );
			int length = 0;
			ar<<length<<'\0';
			return 0;
		}
	}
}

void CLogDlg::EndDialog( int nResult )
{
	CDialog::EndDialog( nResult );
	UpdateData();
}

void CLogDlg::NoUserData()
{
	CFileStatus status;
	CString path( theApp.dir );
	path += "\\user.dat";

	if( !CFile::GetStatus( path, status ) )
	{
		CFile File( path, CFile::modeCreate | CFile::modeWrite );
		CArchive ar( &File, CArchive::store );
		int length = 0;
		ar<<length<<'\0';
	}
}