package com.nutz.module;

import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

import org.nutz.dao.Cnd;
import org.nutz.dao.Dao;
import org.nutz.dao.QueryResult;
import org.nutz.ioc.loader.annotation.Inject;
import org.nutz.ioc.loader.annotation.IocBean;
import org.nutz.lang.Strings;
import org.nutz.lang.util.NutMap;
import org.nutz.mvc.annotation.At;
import org.nutz.mvc.annotation.Attr;
import org.nutz.mvc.annotation.Fail;
import org.nutz.mvc.annotation.Filters;
import org.nutz.mvc.annotation.Ok;
import org.nutz.mvc.annotation.Param;

import com.nutz.bean.Student;



@IocBean
@At("/student") 
@Ok("json:{locked:'password',ignoreNull:true}")
@Fail("http:500")
public class StudentModule {
	@Inject
	protected Dao dao;
	
	@At
	public int count(){
		return dao.count(Student.class);
	}
	
	@At
    @Ok(">>:/")
	public void logout(HttpSession session){
		session.invalidate();
	}
 	
 	
	
	@At
	@Filters
	public Object login(@Param("studentName")String name,@Param("password")String password,HttpSession session) {
		Student student=dao.fetch(Student.class, Cnd.where("studentName","=",name).and("password", "=",password));
		if(student==null){
			return false;
		}else{
			session.setAttribute("me", student.getId());
			return true;
		}    	
	}
	
	protected String checkStudent(Student student,boolean create){
 		if(student==null){
 			return "空对象";
 		}
 		if(create){
 			if(Strings.isBlank(student.getStudentName())||Strings.isBlank(student.getPassword()))
                 return "用户名/密码不能为空";
 		}else{
 			if(Strings.isBlank(student.getPassword()))
 				return "密码不能为空";
 		}
 		String password=student.getPassword().trim();
 		if(6>password.length()||password.length()>12){
 			return "密码长度6~12位";
 		}
 		student.setPassword(password);
 		
 		if(create){
 			int count=dao.count(Student.class, Cnd.where("name", "=", student.getStudentName()));
 		    if(count !=0){
 		    	return "学生已存在";
 		    }			
 		}else{
 			if(student.getId()<1){
 				return "学生Id非法";
 			}
 		}
     	
 		if(student.getStudentName() !=null)
 			student.setStudentName(student.getStudentName().trim());
     	return null;   	
     }
	
	@At
	@Ok("json:full")
    public Object add(@Param("..")Student student){
 	   NutMap re=new NutMap();
 	   String msg=checkStudent(student,true);
 	   if(msg !=null){
 		   return re.setv("ok", false).setv("msg", msg);
 	   }
 	  
 	   student=dao.insert(student);
 	   return re.setv("ok", true).setv("data", student);
    }
	
	@At
	 public Object update(@Param("..")Student student){
	   NutMap re=new NutMap();	   
	   String msg=checkStudent(student,false);
	   if(msg !=null){
		   return re.setv("ok", false).setv("msg", msg);
	   }
	   student.setStudentName(null);
	   dao.updateIgnoreNull(student);
	   re.setv("ok", true);
	   return student;
	 }
	 
	@At
   public Object delete(@Param("id")int id, @Attr("me")int me) {
       if (me == id) {
           return new NutMap().setv("ok", false).setv("msg", "不能删除当前学生!!");
       }
       dao.delete(Student.class, id); 
       return new NutMap().setv("ok", true);
   }
	
	@At
   public List query(@Param("name")String name,HttpServletRequest request){
		Cnd cnd=Strings.isBlank(name)? null: Cnd.where("name","like","%"+name+"%");
		QueryResult qr=new QueryResult();
		qr.setList(dao.query(Student.class, cnd));	
		return qr.getList(); 	
   }
	
}

@Ok("json:full")我放在module上面也没用

nutz框架的问题