package jdbcbook.photo;

import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.*;

import jdbcbook.pub.util.*;

/**
 * 照片信息錄入頁面入口處理類
 */
public class PhotoUpdateInServlet extends HttpServlet
{

	public void doPost(HttpServletRequest request, HttpServletResponse response)
						throws IOException, ServletException
	{
		// 取得照片的主鍵值
		int nPhotoID = RequestUtil.getInt( request, "photoid", 0 );
		if( nPhotoID > 0 )
		{
			// 取得主鍵值對應的照片信息
			Photo photo = PhotoBean.getPhoto( nPhotoID );
			request.setAttribute( "photo", photo );
		}

		// 取得所有的照片分類信息
		Collection coll = CategoryBean.queryCategory( null );
		request.setAttribute( "categorys", coll );

		// 跳轉到照片信息錄入頁面
		RequestDispatcher dispatcher = request.getRequestDispatcher( "photo_update.vm" );
		dispatcher.forward( request, response );
	}

	public void doGet(HttpServletRequest request, HttpServletResponse response)
						throws IOException, ServletException
	{
		doPost( request, response );
	}
}