inputjobsdlg.cpp

A HR database application.

// InputJobsDlg.cpp : implementation file
//

#include <string.h>
#include <iomanip.h>
#include "stdafx.h"
#include "HRDB.h"
#include "InputJobsDlg.h"
#include "desexec.h"

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

//引入全局SQL环境变量
extern SQLHENV    henv;
extern SQLHDBC    hdbc;
extern SQLHSTMT   hstmt;
extern SQLRETURN  retcode;

/////////////////////////////////////////////////////////////////////////////
// CInputJobsDlg dialog


CInputJobsDlg::CInputJobsDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CInputJobsDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CInputJobsDlg)
	m_strJobID = _T("");
	m_strJobTitle = _T("");
	m_strMaxSalary = _T("");
	m_strMinSalary = _T("");
	//}}AFX_DATA_INIT
}


void CInputJobsDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CInputJobsDlg)
	DDX_Control(pDX, IDC_INPUT_MIN_SALARY, m_editMinSalary);
	DDX_Control(pDX, IDC_INPUT_MAX_SALARY, m_editMaxSalary);
	DDX_Control(pDX, IDC_INPUT_JOB_TITLE, m_editJobTitle);
	DDX_Control(pDX, IDC_INPUT_JOB_ID, m_editJobID);
	DDX_Text(pDX, IDC_INPUT_JOB_ID, m_strJobID);
	DDX_Text(pDX, IDC_INPUT_JOB_TITLE, m_strJobTitle);
	DDX_Text(pDX, IDC_INPUT_MAX_SALARY, m_strMaxSalary);
	DDX_Text(pDX, IDC_INPUT_MIN_SALARY, m_strMinSalary);
	//}}AFX_DATA_MAP
}


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

/////////////////////////////////////////////////////////////////////////////
// CInputJobsDlg message handlers

BOOL CInputJobsDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CInputJobsDlg::OnCancel() 
{
	CDialog::OnCancel();
}

void CInputJobsDlg::OnOK() 
{
	// 使用参数绑定的方法向表中插入数据
	SQLVARCHAR   job_id[10];
	SQLVARCHAR   job_title[35];
	SQLVARCHAR	 min_salary[20]; 
	SQLVARCHAR	 max_salary[20]; 
	SQLINTEGER   job_idLenOrInd = 0, job_titleLenOrInd = 0;
	SQLINTEGER   min_salaryLenOrInd = 0, max_salaryLenOrInd = 0;

	// 准备包含参数标志符的SQL语句
	TODBCs( hstmt, SQLPrepare( hstmt,                       
	   (unsigned char *)"insert into jobs (job_id, job_title, min_salary, \
	   max_salary) Values (?, ?, ?, ?)", SQL_NTS ) );
	
	// 为每一个参数都调用函数SQLBindParameter, 绑定相应的参数
	TODBCs( hstmt, SQLBindParameter( hstmt, 1, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_VARCHAR,
	                            10, 0, job_id, sizeof(job_id), &job_idLenOrInd ) );

	TODBCs( hstmt, SQLBindParameter( hstmt, 2, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_VARCHAR,
	                            35, 0, job_title, sizeof(job_title), &job_titleLenOrInd ) );
	
	// SQL_DECIMAL对应SQL中money类型
	TODBCs( hstmt, SQLBindParameter( hstmt, 3, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_DECIMAL,
	                            20, 0, min_salary, sizeof(min_salary), &min_salaryLenOrInd ) );
	
	// SQL_DECIMAL对应SQL中money类型
	TODBCs( hstmt, SQLBindParameter( hstmt, 4, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_DECIMAL,
	                            20, 0, max_salary, sizeof(max_salary), &max_salaryLenOrInd ) );

	// 先给参数变量赋值，然后执行SQL语句，向表中插入新记录
	UpdateData(TRUE); //更新控件关联变量
	strcpy( (char *)job_id, m_strJobID);
	strcpy( (char *)job_title, m_strJobTitle);
	strcpy( (char *)min_salary, m_strMinSalary);
	strcpy( (char *)max_salary, m_strMaxSalary);
	job_idLenOrInd = SQL_NTS;
	job_titleLenOrInd = SQL_NTS;
	min_salaryLenOrInd = SQL_NTS;
	max_salaryLenOrInd = SQL_NTS;
	retcode = TODBCs( hstmt, SQLExecute(hstmt) );

	if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO)
	{
		//捕获异常
		AfxMessageBox("无权添加,或添加失败!");
	}

	// 释放绑定的参数
	TODBCs( hstmt, SQLFreeStmt( hstmt, SQL_RESET_PARAMS ) );
	
	// 释放绑定的参数
	TODBCs( hstmt, SQLFreeStmt( hstmt, SQL_UNBIND ) );

	m_editJobID.SetWindowText("");
	m_editJobTitle.SetWindowText("");
	m_editMinSalary.SetWindowText("");
	m_editMaxSalary.SetWindowText("");

	//CDialog::OnOK();
}