致命错误:在非对象代码点火器$ query-> num_rows()== 1)上调用成员函数where()

问题描述

我是Codeigniter的新手，遇到了一些问题.

I'm newbie with codeigniter and have some problems.

错误消息: 致命错误:在C:\ xampp \ htdocs \ moi \ CI \ application \ models \ model_users中的非对象上调用成员函数where().第12行上的php

我的模特:

class Model_users extends CI_Model {

 function __construct(){
    parent::__construct();
}

public function can_log_in() {


    $this->db->where('email', $this->input->post('email'));
    $this->db->where('pass', md5($this->input->post('password')));
    $query = $this->db->get('users');

    if ($query->num_rows()==1) {
        return TRUE;
    } else {
        return FALSE;
    }

我的控制器:

class Main extends CI_Controller {

public function index() {
    $this->login();
}

//Auslagern der Funktionen
public function login() {
    $this->load->view('login');
}

public function login_validation() {

    $this->load->library('form_validation');

    $this->form_validation->set_rules('email', 'email', 'required|valid_email|xss_clean|callback_username_check');
    $this->form_validation->set_rules('password', 'password', 'required|md5');

    if ($this->form_validation->run()) {
        redirect('main/members');
    } else {
        $this->load->view('login');
    }
}

public function username_check() {
    $this->load->library('form_validation');
    $this->load->model('model_users');
    if ($this->model_users->can_log_in()) {
        return TRUE;
    } else {
        $this->form_validation->set_message('username_check', 'incorect User or Passwort.');
        return FALSE;
    }
}

}

请寻求帮助

推荐答案

$this->db似乎未定义.似乎您的模型中没有属性名称$db.

$this->db seems not to be defined. Seems you dont have a property names $db within your Model.

您是否使用过:$this->load->database();初始化数据库?

Have you used: $this->load->database(); to initialize your database?

尝试以下代码:

class Model_users extends CI_Model {

    function __construct(){
        parent::__construct();
        $this->load->database();
    }

信息
示例: http://maestric.com/doc/php/codeigniter_models
用户指南: http://ellislab.com/codeigniter/user_guide/database/examples.html

Information
Example: http://maestric.com/doc/php/codeigniter_models
User Guide: http://ellislab.com/codeigniter/user_guide/database/examples.html

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