3

我已经使用 codeigniter 创建了一个。当用户第一次来到表单页面时，用户然后提交值，然后将值存储到数据库中，用户再次被引导到表单页面。现在的问题是，如果用户在第一次提交表单后刷新页面，最后插入的值会在用户刷新页面时一次又一次地自动添加到数据库中，如何停止？

这是我的查看代码...

        <?php echo form_open("site/upload_data"); ?>

            <div id="container" style="float:left; width:561px; height:50px">
                <div id="name" style="float:left; width:150px;">
                    Movie Name:
                </div>

                <div id="field" style="float:left; width:411px;">
                    <input type="text" name="movie_name" />
                </div>
            </div>


            <div id="container" style="float:left; width:561px; height:50px">
                <div id="name" style="float:left; width:150px;">
                    Release Date:
                </div>

                <div id="field" style="float:left; width:411px;">
                    <input type="text" name="date" />
                </div>
            </div>



            <div id="container" style="float:left; width:561px; height:160px">
                <div id="name" style="float:left; width:150px;">
                    Genres:
                </div>

                <div id="field" style="float:left; width:411px;">
                    <input type="checkbox" name="genres" value="Action">Action&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                    <input type="checkbox" name="genres" value="Adventure">Adventure&nbsp;&nbsp;&nbsp;
                    <input type="checkbox" name="genres" value="Animation">Animation&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                    <input type="checkbox" name="genres" value="Biography">Biography<br />

                    <input type="checkbox" name="genres" value="Comedy">Comedy&nbsp;&nbsp;&nbsp;
                    <input type="checkbox" name="genres" value="Crime">Crime&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                    <input type="checkbox" name="genres" value="Documentary">Documentary&nbsp;&nbsp;&nbsp;
                    <input type="checkbox" name="genres" value="Drama">Drama<br />

                    <input type="checkbox" name="genres" value="Family">Family&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                    <input type="checkbox" name="genres" value="Fantasy">Fantasy&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                    <input type="checkbox" name="genres" value="Film-Noir">Film-Noir&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                    <input type="checkbox" name="genres" value="Game-Show">Game-Show<br />

                    <input type="checkbox" name="genres" value="History">History&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                    <input type="checkbox" name="genres" value="Horror">Horror &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                    <input type="checkbox" name="genres" value="Music">Music&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                    <input type="checkbox" name="genres" value="Musical">Musical<br />


                    <input type="checkbox" name="genres" value="Mystery">Mystery&nbsp;&nbsp;&nbsp;&nbsp;
                    <input type="checkbox" name="genres" value="News">News&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                    <input type="checkbox" name="genres" value="Reality-TV">Reality-TV&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                     <input type="checkbox" name="genres" value="Romance">Romance<br />



                    <input type="checkbox" name="genres" value="Sci-Fi">Sci-Fi&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                    <input type="checkbox" name="genres" value="Sport">Sport&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                    <input type="checkbox" name="genres" value="Talk-Show">Talk-Show&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                    <input type="checkbox" name="genres" value="Thriller">Thriller<br />

                    <input type="checkbox" name="genres" value="War">War&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                    <input type="checkbox" name="genres" value="Western">Western


                </div>
            </div>


            <div id="container" style="float:left; width:561px; height:50px">
                <div id="name" style="float:left; width:150px;">
                    Rating:
                </div>

                <div id="field" style="float:left; width:411px;">

<input id="ttcontact" type="radio" checked="checked" value="G" name="rating">
G

<input id="ttcontact" type="radio" value="PG" name="rating">
PG
<input id="ttcontact" type="radio" value="PG-13" name="rating">
PG-13

<input id="ttcontact" type="radio" value="R" name="rating">
R

<input id="ttcontact" type="radio" value="NC-17" name="rating">
NC-17
                </div>
            </div>


            <div id="container" style="float:left; width:561px; height:50px">
                <div id="name" style="float:left; width:150px;">
                    Stars:
                </div>

                <div id="field" style="float:left; width:411px;">
                    <input type="text" name="star" placeholder="Eg: Max, John" />
                </div>
            </div>


            <div id="container" style="float:left; width:561px; height:50px">
                <div id="name" style="float:left; width:150px;">
                    Director:
                </div>

                <div id="field" style="float:left; width:411px;">
                    <input type="text" name="director" />
                </div>
            </div>


            <div id="container" style="float:left; width:561px; height:50px">
                <div id="name" style="float:left; width:150px;">
                    Writers:
                </div>

                <div id="field" style="float:left; width:411px;">
                    <input type="text" name="writers" />
                </div>
            </div>


            <div id="container" style="float:left; width:561px; height:50px">
                <div id="name" style="float:left; width:150px;">
                    Movie Path:
                </div>

                <div id="field" style="float:left; width:411px;">
                    <input type="text" name="path" />
                </div>
            </div>



            <div id="container" style="float:left; width:561px; height:50px; text-align:center">
                <div id="btn" style="float:left;margin-left: 375px; margin-top: 25px;">                
                    <input type="submit" value="Submit" />
               </div>
            </div>  

        <?php echo form_close(); ?>

    </div>

这是我的控制器代码...

public function upload_data()

{

$this->load->library('form_validation');
    // field name, error message, validation rules
    $this->form_validation->set_rules('movie_name', 'Movie Name', 'trim|required|min_length[4]|xss_clean');
    $this->form_validation->set_rules('date', 'date', 'trim|required|min_length[4]|xss_clean');
    $this->form_validation->set_rules('genres', 'genres', 'trim|required|min_length[4]|xss_clean');


    $this->form_validation->set_rules('star', 'star', 'trim|required|min_length[4]|xss_clean');

    $this->form_validation->set_rules('director', 'director', 'trim|required|min_length[4]|xss_clean');

    $this->form_validation->set_rules('writers', 'writers', 'trim|required|min_length[4]|xss_clean');
    $this->form_validation->set_rules('path', 'path', 'trim|required|min_length[4]|xss_clean');


    if($this->form_validation->run() == FALSE)
    {
        $this->admin();
    }
    else
    {
        $result = $this->site_upload->add_data();

        if ($result)
        {
            $this->load->view('admin');
        }   
    }
}

这是我的模型代码...

public function add_data()
    {
        $values = array (
            'movie_name' => $this->input->post('movie_name'),
            'date' => $this->input->post('date'),
            'genres' => $this->input->post('genres'),
            'rating' => $this->input->post('rating'),
            'star' => $this->input->post('star'),
            'director' => $this->input->post('director'),
            'writers' => $this->input->post('writers'),
            'path' => $this->input->post('path')
        );

        $rows = $this->db->insert('data',$values);

        return $rows;   
    }
4

3 回答 3

1

您可以在插入成功后重定向页面，以防止重复插入。

header("Location: your_submit_page.php?fresh");
于 2013-08-25T17:42:15.553 回答
1 
if($this->form_validation->run() == FALSE)
{
    $this->admin();
}
else
{
    $result = $this->site_upload->add_data();

    if ($result)
    {
         redirect('/path/you/want/to/redirect'); //do the redirection
    }   
}

redirect()将达到目的。

于 2013-08-25T17:52:06.530 回答
0

您还可以使用给定 ID 替换简单按钮的提交输入，然后使用（例如）jQuery 来监听该按钮的“onclick”事件，然后执行 POST 请求，而不是使用浏览器执行你现在。

我发现这种方式更优雅，因为它允许您显示错误消息，而无需重新开始填写表单，这有时很乏味。当然，由于当前页面中没有帖子标题，您可以根据需要重新加载多次，而不会无意中实际发布。

您可能想向我们展示“表单打开”函数是如何解析的，主要是为了了解 POST 到哪里。

于 2013-08-25T17:46:58.193 回答