php - CodeIgniter更新记录

Question

Controller

//class News
public function update($slug)
{
    $this->load->helper('form');
    $this->load->library('form_validation');
    $data['news_item']=$this->news_model->get_news($slug);
    if (empty($data['news_item']))
    {
        show_404();
    }

    $data['title'] = $data['news_item']['title'];

    $this->load->view('templates/header', $data);
    $this->load->view('news/update', $data);
    //$this->load->view('save',$save);
    $this->load->view('templates/footer');

}

模型new_model.php

//class News_model
public function get_news($slug = FALSE)
{
    if($slug === FALSE)
    {
        $query = $this->db->get('news');        
        return $query->result_array(); 
    }
    $query = $this->db->get_where('news',array('slug'=>$slug));
    return $query->row_array();
}
public function update_news($slug)
{
    $query=$this->db->where('slug', $slug);
    $this->db->update('news' ,$query);
    return $query->row_array();
}

在update.php中查看下面给出的文件代码..查看update.php文件

<h2>Update New Item</h2>

<?php echo form_open('news/update') ?>

<label for="title">Title</label>
<input type="input" name="title" value="<?php echo $news_item['title']; ?>" readonly/><br>

<label for="text">Text</label>
<textarea name="text" cols="35" rows="16"><?php echo $news_item['text'];?></textarea><br>

<a href="save/">save</a>

</form>

数据将被获取，但问题是，当我单击“保存”链接页面时未找到错误，为什么？如何调用这个 View save.php文件..

Answer 1

改变

<a href="save/">save</a>

至

<input type="submit" value="save" />