使用codeignitor将图像上传到重定向的文件夹

Question

enter image description here我想将我的图片上传到上载目录，但是当我单击“提交”按钮发送发帖请求时，我的代码运行了，但并没有将已提交的图像插入到上载目录中它运行下面的代码

    if (!$this->upload->do_upload()) {
        $errors = array('error' => $this->upload->display_errors());
        $post_image = 'no_image.jpg';

    }

因此导致它在我的数据库中显示no_image.jpg。因此，我尝试对其进行编辑，但是似乎无法上传代码，所以我想知道我的代码可能有什么问题。

那是我的控制器文件的一部分。

public function Edit_RoomType()
{
    $data['title'] = 'Rooms_model';


    $this->form_validation->set_rules('room','RoomType','required');
    $this->form_validation->set_rules('Amount','Price Tag','required');

    if ($this->form_validation->run() === FALSE) {
                $this->load->view('templates/header_Admin');
                $this->load->view('Admin/Edit_RoomType', $data);
                $this->load->view('templates/footer_Admin');
    } else {

        //image upload
        $config['upload_path'] ='./assets/uploads';
        $config['allowed_types'] = 'gif|jpg|png|jpeg';
        $config['max_size'] ='2048';
        $config['max_width'] ='500';
        $config['max_height'] ='500';

        $this->load->library('upload', $config);

        if (!$this->upload->do_upload()) {
            $errors = array('error' => $this->upload->display_errors());
            $post_image = 'no_image.jpg';

        } else {
            $data = array('upload_data' => $this->upload->data());
            //setting table field
            $post_image = $_FILES['userfile']['name'];
        }


           $this->Rooms_model->create_room($post_image);
          redirect('Admin');  
    }



}

下面是我的模型文件的一部分

 public function create_room($post_image)
    {
        $Room_type = url_title($this->input->post('room'));
        $data = array(
            'Room_type' => $Room_type,
            'Amount' => $this->input->post('Amount'),
            'description' => $this->input->post('description'),
            'post_image' => $post_image

        );

        return $this->db->insert('RoomType',$data);
    }