Question

<?php
if (!defined('BASEPATH'))
    exit('No direct script access allowed');

class Builder extends CI_Controller {

    private $uri_segment = 4;
    private $per_page = 4;
    private $num_links = 6;
    private $model;

    public function __construct()
    {
        parent::__construct();
        // Your own constructor code
        $this->load->library('parser');
        $this->load->model($this->model);
        //$this->model = $this->User;
    }

    public function get_start_row(){
        return $this->uri->segment($this->uri_segment, 0);
    }

    public function get_total_row(){
        return $this->model->count();
    }

    public function pagination($data){
        $this->load->library('pagination');
            $config['base_url'] = $data['url'];
            $config['total_rows'] = $data['total_row'];
            $config['per_page'] = $this->per_page;
            $config['num_links'] = $this->num_links;
            $config['uri_segment'] = $this->uri_segment;
            $config['full_tag_open'] = '<div class="text-center"><ul class="pagination">';
            $this->pagination->initialize($config);
        return $this->pagination->create_links();
    }

    public function index() { 
            //$this->session->unset_userdata('_task');
            //$this->session->unset_userdata('_value');  

            $start = $this->get_start_row();
            $data['result_list'] = $this->model->get_list(array(), $start, $this->per_page);

            $display_row = '';
            if(empty($data['result_list'])){

                $data['result_list'] = array(
                                            array('user_id' => '','user_name' => '','user_tel' => '','user_email' => '',
                                            'user_username' => '','user_password' => '','user_permission' => '')
                                            );

                    $display_row = 'display:none';

            }

            $data['txt_search'] = '';
            $data['pagination'] = '';                           
            $data['display_list'] = $display_row;
            $this->parser->parse('builder/user', $data);
        }

    public function save() {
        $post = $this->input->post(NULL, TRUE); // returns all POST/GET items with XSS filter 
        $data = array(
            'user_id' => $post['user_id(Primary)'], 
            'user_name' => $post['user_name'], 
            'user_tel' => $post['user_tel'], 
            'user_email' => $post['user_email'], 
            'user_username' => $post['user_username'], 
            'user_password' => $post['user_password'], 
            'user_permission' => $post['user_permission'] 
        );
            $this->model->id = $post['id'];
            if($this->model->save($data)){
            $result = array('result' => true);
        }else{
            $result = array(
                'result' => false,
                'message' => $this->db->error()
            );
        }
            echo json_encode($result);
    }

    public function delete() {
        $this->user->id = $this->input->post('id', true);
            if($this->user->save($data)){
            $result = array('result' => true);
        }else{
            $result = array(
                'result' => false,
                'message' => $this->db->error()
            );
        }
            echo json_encode($result);
    }

}

?>

遇到PHP错误
严重性：错误消息：呼叫成员   函数get_list（）在非对象上的文件名：controllers / Builder.php
  行号：46 Backtrace：

Answer 1

问题出在你调用$this->load->model($this->model);的构造函数中。当调用它时，类属性$model没有值。所以你基本上称为$this->load->model(NULL);，这是没有意义的，所以在范围内不会有一个叫做“模型”的对象。

你可能想要做更像$this->load->model('user_model');的事情，或者，如果你坚持使用class属性，你必须先设置它。

public function __construct()
{
    parent::__construct();
    $this->load->library('parser');
    $this->model = 'user_model';
    $this->load->model($this->model);
}

或许我误解了你的意图。如果是这样，请告诉我们您的目标。

在非对象上调用成员函数getList（）

1 个答案: