项目准备（model）

user model manage

<?php
    /**
     * UserModelManager is a class used to manage UserModel class
     * @author liupengcheng
     * @date 2014-3-3
     */
    class UserModelManager{
        private $dao;
        private $_si;
        private $db_name;
        private $table_name;
        private $table_apply;
        
        public function __construct(){
                $this->dao = new DAO();
                $this->_si = new SqlIntepreter();
                $this->db_name=Loader::loadConfigs('db_usermodel','db1');
                $this->table_name=Loader::loadConfigs('db_usermodel','table1');
                $this->table_apply=Loader::loadConfigs('db_usermodel','table2');
        }
        
        public function userExist($user_name, $password){
            $select =array();
            array_push($select,'user_name');
            array_push($select,'password');
        
            try{
                $this->dao->connect();  //连接数据库
                $this->dao->selectDB($this->db_name); //选择数据库
            }catch(Exception $e){
                throw $e;
            }
            $where = array('user_name'=>$user_name,'password'=>$password);
            //重置状态
            $this->_si->renew();
            $sqlstat = $this->_si->select($select)->from($this->table_name)->where($where)->getSql();   //构造sql语句
            $result=$this->dao->execute($sqlstat);
            $n = mysql_num_rows($result);
            mysql_close();
            if ($n>0) {
                return true;
            }
            return false;
            
        }
        /**
         * 
         * @param $user_name
         * @param $password
         * @param string $limit must be integer
         * @throws Exception
         * @return resource
         */
        public function getUsers($user_name,$password,$limit=null){
            $select=array();
            array_push($select,'user_name');
            array_push($select, 'password');
            array_push($select, 'role');
            array_push($select,'email');
            array_push($select,'comment');
            try{
                $this->dao->connect();
                $this->dao->selectDB($this->db_name);
            }catch(Exception $e){
                throw $e;
            }
            $where = array('user_name'=>$user_name,'password'=>$password);
            //重置状态
            $this->_si->renew();
            if(!isset($limit)){
                $sqlstat = $this->_si->select($select)->from($this->table_name)->where($where)->getSql();
            }else{
                $sqlstat = $this->_si->select($select)->from($this->table_name)->where($where)->limit($limit)->getSql();
            }
            $result = $this->dao->execute($sqlstat);
            $users = mysql_fetch_array($result);
            mysql_close();
            return new UserModel($users);
        }
        
        public function addUser($user_name,$password,$role,$email,$comment){
            $insert=array('user_name','password','role','email','comment');
            $values = array('user_name'=>$user_name,'password'=>$password,'role'=>$role,'email'=>$email,'comment'=>$comment);
            //重置状态
            
            $this->_si->renew();
            $sqlstat = $this->_si->insert($this->table_name, $insert)->values($values)->getSql();
            
            try{
                $this->dao->connect();
                $this->dao->selectDB($this->db_name);
            }catch(Exception $e){
                throw $e;
            }
            $result=$this->dao->execute($sqlstat);
            if(mysql_affected_rows()>0){
                mysql_close();
                return true;
            }
            return false;
        }
        
        public function delUser($id){
            $where=array('id'=>$id);
            //重置状态
            $this->_si->renew();
            $sqlstat = $this->_si->delete($this->table_name)->where($where);
            try{
                $this->dao->connect();
                $this->dao->selectDB($this->db_name);
            }catch(Exception $e){
                throw $e;
            }
            $result = $this->dao->execute($sqlstat);
            if(mysql_affected_rows()>0){
                mysql_close();
                return true;
            }
            else
                return false;
        }
        
        public function userNameAvailable($user_name){
            try{
                $this->dao->connect();
                $this->dao->selectDB($this->db_name);
            }catch(Exception $e){
                throw $e;
            }
            
            
            $user_table = true;
            $apply_table = true;
            $where = array('user_name'=>$user_name);
            
            //重置状态
            $this->_si->renew();
            $sqlstat = $this->_si->select()->from($this->table_name)->where($where)->getSql();
            $result = $this->dao->execute($sqlstat);
            
            if(mysql_num_rows($result)>0){
                $user_table = false;
            }
            
            $this->_si->renew();
            $sqlstat = $this->_si->select()->from($this->table_apply)->where($where)->getSql();
            $result = $this->dao->execute($sqlstat);
                
            if(mysql_num_rows($result)>0){
                $apply_table = false;
            }
            
            mysql_close();
            
            if($user_table && $apply_table){
                return true;
            }else{
                return false;
            }
            
        }
        
        public function updateBasicInfo($role='', $email='', $comment=''){
            session_start();
            $sqlstat=null;
            if(isset($_SESSION['user_name'])&&!empty($_SESSION['user_name'])){
                $where=array('user_name'=>$_SESSION['user_name']);
                $params=array();
                $role = empty($role)? $_SESSION['role']:$role;
                $email = empty($email) ? $_SESSION['email']:$email;
                $comment = empty($comment)? $_SESSION['comment']:$comment;
                $params=array('role'=>$role,'email'=>$email,'comment'=>$comment);
                //重置状态
                $this->_si->renew();
                $sqlstat=$this->_si->update($this->table_name)->set($params)->where($where)->getSql();
            }else{
                throw new Exception("Error: session expired");    
            }
            try{
                $this->dao->connect();
                $this->dao->selectDB($this->db_name);
            }catch(Exception $e){
                throw $e;
            }
            $result=$this->dao->execute($sqlstat);
            if(mysql_affected_rows()>0){
                mysql_close();
                return true;
            }else 
                return false;
        }
        
        public function passUpdate($pass, $newPass){
            session_start();
            $sqlstat=null;
            if(isset($_SESSION['user_name'])&&!empty($_SESSION['user_name'])){
                $where=array('user_name'=>$_SESSION['user_name'],'password'=>$pass);
                $set=array('password'=>$newPass);
                //重置状态
                $this->_si->renew();
                $sqlstat=$this->_si->update($this->table_name)->set($set)->where($where);
            }else{
                throw new Exception('Error: session expired');
            }
            try{
                $this->dao->connect();
                $this->dao->selectDB($this->db_name);
            }catch(Exception $e){
                throw $e;
            }
            $result = $this->dao->execute($sqlstat->getSql());
            if(mysql_affected_rows()>0){
                mysql_close();
                return true;
            }else 
                return false;
        }
        
        
        public function getapplycount(){   //获得apply表的个数-hss
            try{
                $this->dao->connect();
                $this->dao->selectDB($this->db_name);
            }catch(Exception $e){
                throw $e;
            }
                
            $this->_si->renew();
                
            $sqlstat = $this->_si->select()->from($this->table_apply)->getSql();   //构造sql语句
            //return $sqlstat;
            $result=$this->dao->execute($sqlstat);   //数据库执行的问题
                
            $n = mysql_num_rows($result);
            mysql_close();
                
            return $n;
        }
        
        public function getApplyUserInfo(){
            try{
                $this->dao->connect();
                $this->dao->selectDB($this->db_name);
            }catch(Exception $e){
                throw $e;
            }

//             //重置状态
            $this->_si->renew();
            if(!isset($limit)){
                $sqlstat = $this->_si->select()->from($this->table_apply)->getSql();
            }else{
                $sqlstat = $this->_si->select()->from($this->table_apply)->limit($limit)->getSql();
            }
            
            $result = $this->dao->execute($sqlstat);
            
            $users=array();
            
            $user=array();    
            while($row = mysql_fetch_array($result)){
                $user['name']=$row["user_name"];
                $user['role']=$row["role"];
                if(isset($row["email"])){
                    $user['email']=$row["email"];
                }else{
                    $user['email']="";
                }
                if(isset($row["comment"])){
                    $user['comment']=$row["comment"];
                }else{
                    $user['comment']="";
                }
                array_push($users, $user);
            }
            
            mysql_close();
            return json_encode($users);
        }
        
        //把申请用户从apply_info中转到user_info中，删除apply_info中的这些用户
        public function addApplyUser($names){
            try{
                $this->dao->connect();
                $this->dao->selectDB($this->db_name);
            }catch(Exception $e){
                throw $e;
            }
            
            $add_user_info = array();
            $opera_status = true;
            //从apply_info中读取申请用户，并删除这些申请用户
            foreach ($names as $name){
                $this->_si->renew();
                $where = array('user_name'=>$name);
                
                //读用户
                $sqlstat = $this->_si->select()->from($this->table_apply)->where($where)->getSql();
                $read_result = $this->dao->execute($sqlstat);
                
                $user= mysql_fetch_array($read_result);
                $read_state = false;
                if(mysql_affected_rows()>0){
                    $read_state = true;
                }
                array_push($add_user_info, $user);
                
                //删除用户
                $this->_si->renew();
                $sqlstat = $this->_si->delete($this->table_apply)->where($where)->getSql();
                $delete_result = $this->dao->execute($sqlstat);
                $delete_state = false;
                if(mysql_affected_rows()>0){
                    $delete_state = true;
                }
                
                if(!($read_state && $delete_state)){
                    $opera_status = false;
                    break;
                }
            }
            
            //添加apply_info中读取的用户到users_info中
            foreach ($add_user_info as $user){
                $insert=array('user_name','password','role','email','comment');
                $values = array('user_name'=>$user['user_name'],
                                    'password'=>$user['password'],
                                    'role'=>$user['role'],
                                    'email'=>$user['email'],
                                    'comment'=>$user['comment']);
                
                
                $this->_si->renew();
                $sqlstat = $this->_si->insert($this->table_name, $insert)->values($values)->getSql();
                $result=$this->dao->execute($sqlstat);
                if(!(mysql_affected_rows()>0)){
                    $opera_status = false;
                    break;
                }
            }
            mysql_close();
            //重置状态
            return $opera_status;                
        }
        
        //把申请用户从apply_info中删除
        public function  deleteApplyUser($names){
            try{
                $this->dao->connect();
                $this->dao->selectDB($this->db_name);
            }catch(Exception $e){
                throw $e;
            }
                
            $add_user_info = array();
            $delete_state = true;
            //从apply_info中读取申请用户，并删除这些申请用户
            foreach ($names as $name){
                $this->_si->renew();
                $where = array('user_name'=>$name);
            
                //删除用户
                $this->_si->renew();
                $sqlstat = $this->_si->delete($this->table_apply)->where($where)->getSql();
                $delete_result = $this->dao->execute($sqlstat);
             
                if(!(mysql_affected_rows()>0)){
                    $delete_state = false;
                    break;
                }

            }
            mysql_close();
            //重置状态
            return $delete_state;
        }
    }