Question

所以基本上我试图将我在这两个教程中找到的内容组合起来制作一个有效的CRUD： http://fwebde.com/php/simple-crud-with-codeigniter/

http://ie.mirror.twsweb-int.com/codeigniter/user_guide/tutorial/create_news_items.html

基本上，我在哪里可以让编辑页面在表单中呈现相应的项目详细信息，但每当我按提交时，我都会收到404错误，表格不会更新。

我的edit.php与我的新闻控制器绑定：

<?php echo validation_errors(); ?>
<h2>Edit a news item</h2>

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

<p>
<label for="title">Title</label> 
<?php echo form_input('title',$news_item['title']); ?>
</p>

<p>
<label for="text">Text</label>
<?php echo form_textarea('text',$news_item['text']); ?>
</p>    

<?php echo form_hidden($news_item['id']); ?>

<p>
<?php echo form_submit('submit', 'Save Changes'); ?>
</p>

  <?php echo form_close(); ?>

</br>
</br>
<a href='<?php echo site_url('news');?>'>Back</a>

关于编辑方法的新闻控制器：

public function edit($slug)
{
    $data['news_item'] = $this->news_model->get_news($slug);

    if (empty($data['news_item']))
    {
        show_404();
    }

    $data['title'] = 'Edit: '.$data['news_item']['title'];

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

    $this->form_validation->set_rules('title', 'Title', 'required');
    $this->form_validation->set_rules('text', 'text', 'required');

    if($this->form_validation->run() === FALSE)
    {
        $this->load->view('templates/header', $data);   
        $this->load->view('news/edit', $data);
        $this->load->view('templates/footer');
    }
    else
    {
        $this->news_model->update_news( $this->input->post('id'),
                                        $this->input->post('title'),
                                        $this->input->post('text'));
        $this->load->view('news/success');
    }
}

我的模型中的适当方法：

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 set_news()
{
    $this->load->helper('url');

    $slug = url_title($this->input->post('title'), 'dash', TRUE);

    $data = array(
        'title' => $this->input->post('title'),
        'slug' => $slug,
        'text' => $this->input->post('text')
    );

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

public function update_news($id, $title, $content) {
    $data = array(
        'title' => $title,
        'content' => $content
    );

    $this->db->where('id', $id);
    $this->db->update('news', $data);
}

我的路线：

$route['news/edit/(:any)'] = 'news/edit/$1';
$route['news/create'] = 'news/create';
$route['news/(:any)'] = 'news/view/$1';
$route['news'] = 'news';

Answer 1

您要将表单提交到期望商品ID edit的{{1}}方法，您可以将视图更改为以下内容：

$slug

Answer 2

基本上有一些错误：

1）ifaour的建议

2）将主键和slug作为参数传递给后面的

3）忘了我已经更改了表格列（忘记我已将内容列重命名为文本）

模型的最终形式：

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 set_news()
{
    $this->load->helper('url');

    $slug = url_title($this->input->post('title'), 'dash', TRUE);

    $data = array(
        'title' => $this->input->post('title'),
        'slug' => $slug,
        'text' => $this->input->post('text')
    );

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

public function update_news($id, $title, $content) {
    $data = array(
        'title' => $title,
        'text' => $content
    );

    $this->db->where('id', $id);
    $this->db->update('news', $data);
}

以最终形式编辑：

<h2>Edit a news item</h2>

<a href="<?php echo site_url('news/delete/'.$news_item['id']); ?>">Delete this article</a> 

<?php echo validation_errors(); ?>

<?php echo form_open('news/edit/'.$news_item['slug']) ?>

<p>
<label for="title">Title</label> 
<?php echo form_input('title',$news_item['title']); ?>
</p>

<p>
<label for="text">Text</label>
<?php echo form_textarea('text',$news_item['text']); ?>
</p>    

<?php echo form_hidden('slug',$news_item['slug']); ?>
<?php echo form_hidden('id',$news_item['id']); ?>

<p>
<?php echo form_submit('submit', 'Save Changes'); ?>
</p>

<?php echo form_close(); ?>

</br>
</br>
<a href='<?php echo site_url('news');?>'>Back</a>

最终形式的新闻控制器编辑方法：

public function edit($slug)
{
    $data['news_item'] = $this->news_model->get_news($slug);

    if (empty($data['news_item']))
    {
        show_404();
    }

    $data['title'] = 'Edit: '.$data['news_item']['title'];

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

    $this->form_validation->set_rules('title', 'Title', 'required');
    $this->form_validation->set_rules('text', 'text', 'required');

    if($this->form_validation->run() === FALSE)
    {
        $this->load->view('templates/header', $data);   
        $this->load->view('news/edit', $data);
        $this->load->view('templates/footer');
    }
    else
    {
        $this->news_model->update_news( $this->input->post('id'),
                                        $this->input->post('title'),
                                        $this->input->post('text'));


        $data['news_item'] = $this->news_model->get_news($slug);
        $this->load->view('templates/header', $data);                                   
        $this->load->view('news/success');
        $this->load->view('news/edit', $data);
        $this->load->view('templates/header', $data);   
    }
}

Codeigniter：似乎无法使我的编辑工作

2 个答案: