编辑表单显示未找到页面

Question

我正在使用gocart并开始处理那个，插入到数据库工作正常但在编辑它时显示错误。此问题仅适用于某些页面

• 我的控制器

  函数表单（$ id = false）     {         $ this-＆gt; email_id = $ id;         $这 - ＆GT;负载＆GT;库（ 'form_validation'）;

      $this->form_validation->set_error_delimiters('<div class="error">', '</div>');
  
      //default values are empty if the product is new
      $data['id']                 = '';
      $data['subject']                = '';
      $data['email']              ='';
      $data['body']               ='';
      $data['signature']          ='';
  
      $this->breadcrumb->append_crumb('Home', base_url().'admin');
      $this->breadcrumb->append_crumb('Email', base_url().'admin/email'); 
  
      if ($id)
      {   
          $email              = $this->email_model->get_email($id);
  
          //if the product does not exist, redirect them to the product list with an error
          if (!$email)
          {
              $this->session->set_flashdata('error', lang('error_not_found'));
              redirect($this->config->item('admin_folder').'/email/form');
          }
          $data['page_title']     ='Email - '.$email->subject;
          //set values to db values
          $data['id']                 = $id;
          $data['email']              = $email->email;
          $data['subject']                = $email->subject;
          $data['body']               = $email->body;
          $data['signature']          = $email->signature;
  
          $this->breadcrumb->append_crumb($email->subject, base_url().'email/form');
      }else{
          $data['page_title']     = 'Email';  
          $this->breadcrumb->append_crumb('Email', base_url().'email/form');
  
      }
      $data['breadcrumb']=$this->breadcrumb->output();
  
      /*//no error checking on these
      $this->form_validation->set_rules('caption', 'Caption');
      $this->form_validation->set_rules('primary_photo', 'Primary');*/
  
  
      $this->form_validation->set_rules('email', 'lang:email', 'trim|required|valid_email');
      $this->form_validation->set_rules('subject', 'lang:subject', 'trim|required|max_length[64]');
      $this->form_validation->set_rules('body', 'lang:body', 'trim|required|max_length[250]');
      $this->form_validation->set_rules('signature', 'lang:signature', 'trim|required|max_length[64]');
      if ($this->form_validation->run() == FALSE)
      {
          $this->load->view($this->config->item('admin_folder').'/email/email_form', $data);
      }
      else
      {
  
          $this->load->helper('text');
  
          $save['id']                 = $id;
          $save['email']                  = $this->input->post('email');
          $save['body']                   = $this->input->post('body');
          $save['subject']                    = $this->input->post('subject');
          $save['signature']                  = $this->input->post('signature');
  
          // save product 
          $email_id   = $this->email_model->save_email($save);
  
  
          $this->session->set_flashdata('message', lang('message_saved_product'));
  
          //go back to the product list
          redirect($this->config->item('admin_folder').'/email');
      }
  }
  

1）这里我没有使用slug功能 2）htaccess文件没问题 3）编辑和插入在同一个控制器中