wfieldupdate.java

Java写的ERP系统

/******************************************************************************
 * The contents of this file are subject to the   Compiere License  Version 1.1
 * ("License"); You may not use this file except in compliance with the License
 * You may obtain a copy of the License at http://www.compiere.org/license.html
 * Software distributed under the License is distributed on an  "AS IS"  basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
 * the specific language governing rights and limitations under the License.
 * The Original Code is                  Compiere  ERP & CRM  Business Solution
 * The Initial Developer of the Original Code is Jorg Janke  and ComPiere, Inc.
 * Portions created by Jorg Janke are Copyright (C) 1999-2001 Jorg Janke, parts
 * created by ComPiere are Copyright (C) ComPiere, Inc.;   All Rights Reserved.
 * Contributor(s): ______________________________________.
 *****************************************************************************/
package org.compiere.www;

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

//import org.apache.ecs.*;
import org.apache.ecs.xhtml.*;

import org.compiere.util.*;
import org.compiere.model.*;

/**
 *  Dynamic Field Updates
 *
 *  @author 	Jorg Janke
 *  @version 	$Id: WFieldUpdate.java,v 1.2 2002/11/11 07:03:37 jjanke Exp $
 */
public class WFieldUpdate extends HttpServlet
{
	/**
	 *  Initialize global variables
	 *  @param config
	 *  @throws ServletException
	 */
	public void init(ServletConfig config) throws ServletException
	{
		super.init(config);
		if (!WEnv.initWeb(config))
			throw new ServletException("WFieldUpdate.init");
	}   //  init

	/**
	 *  Clean up resources
	 */
	public void destroy()
	{
	}   //  destroy

	private static final String FORM_NAME   = "fieldUpdate";
	//
	private static final String FIELD_FORM  = "formName";
	private static final String FIELD_NAME  = "fieldName";
	private static final String FIELD_VALUE = "fieldValue";

	/**
	 *  Process the HTTP Get request
	 *  @param request
	 *  @param response
	 *  @throws ServletException
	 *  @throws IOException
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
	{
		doPost(request, response);
	}   //  doPost


	/**
	 *  Process the HTTP Post request
	 *  @param request
	 *  @param response
	 *  @throws ServletException
	 *  @throws IOException
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
	{
		Log.trace(Log.l1_User, "WFieldUpdate.doPost");
		//  Get Session Info
		HttpSession sess = request.getSession();
		Properties ctx = (Properties)sess.getAttribute(WEnv.SA_CONTEXT);
		WWindowStatus ws = (WWindowStatus)sess.getAttribute(WEnv.SA_WINDOW);

		if (sess == null || ctx == null)    //  ws can be null for Login
			;

		//  Get Parameter
		String formName = request.getParameter(FIELD_FORM);
		String fieldName = request.getParameter(FIELD_NAME);
		String fieldValue = request.getParameter(FIELD_VALUE);

		//  Document
		WDoc doc = WDoc.create (true);
		body body = doc.getBody();

		//  The Reply
		createReply (body, ctx, ws, formName, fieldName, fieldValue);

		//  The Form
		form fu = new form(request.getRequestURI(), form.post);
		fu.setName(FORM_NAME);
		fu.addElement(new input(input.hidden, FIELD_FORM, "y"));
		fu.addElement(new input(input.hidden, FIELD_NAME, "y"));
		fu.addElement(new input(input.hidden, FIELD_VALUE, "y"));
		body.addElement(fu);

	//	Log.trace(Log.l1_User, "WFieldUpdate=" + doc.toString());

		//  Answer
		WUtil.createResponse (request, response, this, null, doc, false);
	}   //  doPost

	/**
	 *   Create Reply.
	 *   <p>
	 *   Including special handling of login pages
	 *  @param body
	 *  @param ctx
	 *  @param ws
	 *  @param formName
	 *  @param fieldName
	 *  @param fieldValue
	 */
	private static void createReply (body body, Properties ctx, WWindowStatus ws,
		String formName, String fieldName, String fieldValue)
	{
		StringBuffer sb = new StringBuffer (FIELD_FORM);
		sb.append("=").append(formName).append(", ")
			.append(FIELD_NAME).append("=").append(fieldName).append(", ")
			.append(FIELD_VALUE).append("=").append(fieldValue);
		Log.trace(Log.l3_Util, "WFieldUpdate.createReply", sb.toString());

		//  Info
		body.addElement(new p().addElement(sb.toString()));

		//  Called manually - do nothing
		if (formName == null || fieldName == null)
			;
		//
		else if (formName.equals("Login2") && fieldName.equals(WLogin.P_ROLE))
			reply_Login2_Role (body, ctx, formName, fieldValue);
		//
		else if (formName.equals("Login2") && fieldName.equals(WLogin.P_CLIENT))
			reply_Login2_Client (body, ctx, formName, fieldValue);
	}   //  getReply

	/**
	 *  Login 2nd page Response - Field Role.
	 *  <p>
	 *  fill Client, Org, Warehouse
	 *  @param body
	 *  @param ctx
	 *  @param formName
	 *  @param fieldValue
	 */
	private static void reply_Login2_Role (body body, Properties ctx, String formName, String fieldValue)
	{
		//  Formname
		String form = "top." + WEnv.TARGET_WINDOW + ".document." + formName + ".";
		//  Get Data
		KeyNamePair[] clients = DB.loadClients(ctx, new KeyNamePair(Integer.parseInt(fieldValue) , fieldValue));

		//  Set Client ----
		StringBuffer script = new StringBuffer ();
		//  var A=top.WWindow.document.formName.selectName.options;
		script.append("var A=").append(form).append(WLogin.P_CLIENT).append(".options; ");
		//  A.length=0;                         //  resets options
		script.append("A.length=0; ");
		//  A[0]=new Option('text','value');    //  add new oprtion

		for (int i = 0; i < clients.length; i++)
		{
			KeyNamePair p = clients[i];
			script.append("A[").append(i).append("]=new Option('");
			script.append(p.getName());     //  text
			script.append("','");
			script.append(p.getKey());      //  value
			script.append("'); ");
		}
		script.append("\n");

		//  Set Organization ----

		if (clients.length > 0)
		{
			//  var A=top.WWindow.document.formName.selectName.options;
			script.append("var B=").append(form).append(WLogin.P_ORG).append(".options; ");
			//  A.length=0;                         //  resets options
			script.append("B.length=0; ");
			//  A[0]=new Option('text','value');    //  add new oprtion

			KeyNamePair[] orgs = DB.loadOrgs(ctx, clients[0]);
			for (int i = 0; i < orgs.length; i++)
			{
				KeyNamePair p = orgs[i];
				script.append("B[").append(i).append("]=new Option('");
				script.append(p.getName());     //  text
				script.append("','");
				script.append(p.getKey());      //  value
				script.append("'); ");
			}
			script.append("\n");
		}

		//  Set Warehouse ----

		if (clients.length > 0)
		{
			//  var A=top.WWindow.document.formName.selectName.options;
			script.append("var C=").append(form).append(WLogin.P_WAREHOUSE).append(".options; ");
			//  A.length=0;                         //  resets options
			script.append("C.length=0; ");
			//  A[0]=new Option('text','value');    //  add new oprtion

			KeyNamePair[] whs = DB.loadWarehouses(ctx, clients[0]);
			if (whs != null)
			{
				for (int i = 0; i < whs.length; i++)
				{
					KeyNamePair p = whs[i];
					script.append("C[").append(i).append("]=new Option('");
					script.append(p.getName());     //  text
					script.append("','");
					script.append(p.getKey());      //  value
					script.append("'); ");
				}
			}
		}

		//  add script
		body.addElement(new p().addElement(WLogin.P_CLIENT + "="));
		body.addElement(new script(script.toString()));
	//	Log.trace(Log.l6_Database, "reply_Login2_Role - Script=" + script.toString());
	}   //  reply_Login2_Role

	/**
	 *  Login 2nd page Response - Field Client.
	 *  <p>
	 *  fill Org & Warehouse -
	 *  @param body
	 *  @param ctx
	 *  @param formName
	 *  @param fieldValue
	 */
	private static void reply_Login2_Client (body body, Properties ctx, String formName, String fieldValue)
	{
		//  Formname
		String form = "top." + WEnv.TARGET_WINDOW + ".document." + formName + ".";
		StringBuffer script = new StringBuffer ();

		//  Set Organization ----

		//  var A=top.WWindow.document.formName.selectName.options;
		script.append("var B=").append(form).append(WLogin.P_ORG).append(".options; ");
		//  A.length=0;                         //  resets options
		script.append("B.length=0; ");
		//  A[0]=new Option('text','value');    //  add new oprtion

		KeyNamePair client = new KeyNamePair(Integer.parseInt(fieldValue), fieldValue);
		KeyNamePair[] orgs = DB.loadOrgs(ctx, client);
		for (int i = 0; i < orgs.length; i++)
		{
			KeyNamePair p = orgs[i];
			script.append("B[").append(i).append("]=new Option('");
			script.append(p.getName());     //  text
			script.append("','");
			script.append(p.getKey());      //  value
			script.append("'); ");
		}
		script.append("\n");

		//  Set Warehouse ----

		//  var A=top.WWindow.document.formName.selectName.options;
		script.append("var C=").append(form).append(WLogin.P_WAREHOUSE).append(".options; ");
		//  A.length=0;                         //  resets options
		script.append("C.length=0; ");
		//  A[0]=new Option('text','value');    //  add new oprtion

		KeyNamePair[] whs = DB.loadWarehouses(ctx, client);
		if (whs != null)
		{
			for (int i = 0; i < whs.length; i++)
			{
				KeyNamePair p = whs[i];
				script.append("C[").append(i).append("]=new Option('");
				script.append(p.getName());     //  text
				script.append("','");
				script.append(p.getKey());      //  value
				script.append("'); ");
			}
		}

		//  add script
		body.addElement(new p().addElement(WLogin.P_WAREHOUSE + "="));
		body.addElement(new script(script.toString()));
	//	Log.trace(Log.l6_Database, "Login2-Client - Script=" + script.toString());
	}   //  reply_Login2_Client

}   //  WFieldUpdate