Modelalumni

<?php
defined('BASEPATH') OR exit('No direct script access allowed');
Class Model_alumni extends CI_Model{

    function __construct()
    {
        parent::__construct();
    }
    public function tampil(){
        return $this->db->get('alumni')->result();
    }
    public function insert($data){
        $this->db->insert('alumni',$data);
    }
    public function update($data,$where){
        $this->db->update('alumni',$data,$where);
    }
    public function get_by_id($id){
        return $this->db->get_where('alumni',array('id'=>$id))->row();
    }
    public function getAllUser(){
        return $this->db->get('alumni')->result_array();
    }
    public function hapusData($id){
        $_id = $this->db->get_where('alumni',['id' => $id])->row();
   $query=$this->db->delete('alumni',['id'=>$id]);
   if($query){
    unlink("./upload/ijazah/".$_id->foto1);
    unlink("./upload/ijazah/".$_id->foto2);

}
    }

    function simpan($data = array())
    {
        $jumlah = count($data);

        if ($jumlah > 0)
        {
            $this->db->insert_batch('alumni', $data);
        }
    }
    function getAll()
    {
        $this->db->from('alumni'); //nama tabel harap disesuaikan dengan nama tabel milik sobat

        return $this->db->get();
    }
}