SAVE_POST自定义POST类型？$_POST不起作用？

时间：2012-09-15 作者：Tuan Au

我有这个密码。

<?php
add_action(\'add_meta_boxes\', \'ct_meta_add\');
add_action(\'save_post\',\'ct_meta_save\');
add_action(\'save_post\',\'ct_parent\');
// add meta functions
function ct_meta_add() {
    add_meta_box(
        \'ct_chap\', //id
        \'Thông tin chương\', //title
        \'ct_meta_show\', //callback function
        \'chap\', //post type     
        \'normal\' //priority
    );
}
function get_blogspot_url($string) {
    preg_match_all(\'/<a href="(.*?)"/\', $string, $matches);
    $string = \'\';
    foreach($matches[1] as $val) {
        $string .= $val."\\n";
    }
    $string = str_replace(\'s1600\', \'s0\', $string);
    return $string;
}
// save meta functions
function ct_meta_save() {
    global $post;   
    /* Save meta */
    if ( defined( \'DOING_AUTOSAVE\' ) && DOING_AUTOSAVE ) return;
    if ( !wp_verify_nonce( $_POST[\'ct_nonce\'], plugin_basename( __FILE__ ) ) ) return;
    if( !current_user_can( \'edit_post\' ) ) return;  
    $meta = array(\'ct_download_link\', \'ct_list_url\', \'ct_list_url2\');
    foreach($meta as $dt) {     
        if($dt == \'ct_list_url2\') {         
            $_POST[$dt] = get_blogspot_url($_POST[$dt]);
        }
        if(isset($_POST[$dt]) && $_POST[$dt] !== \'\') {
            update_post_meta($post->ID, $dt, $_POST[$dt]);
        } else {
            delete_post_meta($post->ID, $dt);   
        }       
    }   
}
?>
<?php
function ct_parent() { 
    global $post;
    if($_POST[\'ct_truyen\'] && $_POST[\'ct_truyen\'] != "") {
        //lưu hoặc thay đổi truyện của chap
        $ct_post = array();
        $ct_post[\'ID\'] = $post->ID;
        $ct_post[\'post_parent\'] = $_POST[\'ct_truyen\'];  
        //thay đổi thời gian cập nhật truyện
        $tr_post = array();
        $tr_post[\'ID\'] = $_POST[\'ct_truyen\'];   
        $tr_post[\'post_modified_gmt\'] = current_time(\'mysql\');
        $tr_post[\'post_modified\'] = current_time(\'mysql\',7);        
        remove_action(\'save_post\',\'ct_parent\');     
        remove_action(\'save_post\',\'tr_parent\'); 
        wp_update_post($ct_post);   
        wp_update_post($tr_post);   
        add_action(\'save_post\',\'ct_parent\');
    }
}   
?>
<?php //save_meta function
function ct_meta_show() { ?>
    <?php
        global $post;
        $ct_download_link = get_post_meta($post->ID, \'ct_download_link\', true) ? get_post_meta($post->ID, \'ct_download_link\', true) : \'\';
        $ct_list_url = get_post_meta($post->ID, \'ct_list_url\', true) ? get_post_meta($post->ID, \'ct_list_url\', true) : \'\';
        $ct_list_url2 = get_post_meta($post->ID, \'ct_list_url2\', true) ? get_post_meta($post->ID, \'ct_list_url2\', true) : \'\';
    ?>
    <?php wp_nonce_field(plugin_basename(__FILE__), \'ct_nonce\');  ?>    
    <table class="form-table">
    <tbody>    
        <tr>
            <th><label for="ct_download_link">Truyện</label><a class="add-chap-truyen" href="<?php echo admin_url(\'post-new.php?post_type=truyen\'); ?>">thêm truyện</a></th>
            <td>
                <?php
                global $post;
                global $wpdb;
                $query = "SELECT ID, post_title FROM $wpdb->posts WHERE post_type = \'truyen\' AND post_status = \'publish\' ORDER BY post_title";
                $results = $wpdb->get_results($query, OBJECT);
                echo \'<select name="ct_truyen" id="ct_truyen">\';
                if(!$_GET[\'truyen_id\'] || !get_the_title($_GET[\'truyen_id\'])) {
                    echo \'<option value = "">None</option>\';
                    foreach ($results as $r) {
                        echo \'<option value="\', $r->ID, \'"\', $r->ID == $post->post_parent ? \' selected="selected"\' : \'\', \'>\', $r->post_title, \'</option>\';
                    }
                } else {
                    foreach ($results as $r) {
                        echo \'<option value="\', $r->ID, \'"\', $r->ID == $_GET[\'truyen_id\'] ? \' selected="selected"\' : \'\', \'>\', $r->post_title, \'</option>\';
                    }
                }
                echo \'</select>\';
                ?>
            </td>
        </tr>

        <tr>
            <th><label for="ct_download_link">Địa chỉ tải chương</label></th>
            <td><input type="text" name="ct_download_link" class="regular-text" value="<?php echo $ct_download_link; ?>"/></td>
        </tr>

        <tr>
            <th><label for="ct_list_url">Địa chỉ ảnh đọc online</label></th>
            <td>
                <label for="ct_list_url">Địa chỉ ảnh 1</label>
                <p><textarea name="ct_list_url" rows="20" class="large-text code"><?php echo $ct_list_url; ?></textarea></p>
                <label for="ct_list_url2">Địa chỉ ảnh 2</label>
                <p><textarea name="ct_list_url2" rows="20" class="large-text code"><?php echo $ct_list_url2; ?></textarea></p>
            </td>
        </tr>        
    </tbody>
    </table>    
<?php } ?>
<?php
//auto chap title
add_filter( \'default_title\', \'ct_auto_title\');
function ct_auto_title($title) {
    if($_GET[\'truyen_id\'] && get_the_title($_GET[\'truyen_id\'])) {
        $chap_number = get_number_chap($_GET[\'truyen_id\']);
        $title = get_the_title($_GET[\'truyen_id\']) . \' chương \' . ($chap_number+1);
        return $title;
    } else {
        return $title;
    }
}
function ct_remove_excess_columns( $columns ) {

    unset($columns[\'author\']);
    unset($columns[\'comments\']);
    unset($columns[\'wpseo-score\']);
    unset($columns[\'wpseo-title\']);
    unset($columns[\'wpseo-focuskw\']);
    unset($columns[\'wpseo-metadesc\']);  
    return $columns;    
}
add_filter( \'manage_edit-chap_columns\' , \'ct_remove_excess_columns\' );
?>
一切正常，但当我保存时，函数get_blogspot_url($_POST[$dt]) 因为$\\u POST[$dt]，所以不起作用。

当我更换时get_blogspot_url($_POST[$dt]) 具有

get_blogspot_url(\'<div class="separator" style="clear: both; text-align: center;">
<a href="http://4.bp.blogspot.com/-sfO5YNlgW0Y/UFCaPberRcI/AAAAAAAAANM/1ccm6QRHxLM/s1600/0000.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="http://4.bp.blogspot.com/-sfO5YNlgW0Y/UFCaPberRcI/AAAAAAAAANM/1ccm6QRHxLM/s320/0000.png" width="240" /></a></div>
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="http://1.bp.blogspot.com/-a1bQNURFQU0/UFCaRm88fwI/AAAAAAAAANU/uDnHUsvNvS8/s1600/img000005.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="http://1.bp.blogspot.com/-a1bQNURFQU0/UFCaRm88fwI/AAAAAAAAANU/uDnHUsvNvS8/s320/img000005.png" width="199" /></a></div>
<br />\')
这是可行的，所以我认为$\\u POST[$dt]有问题，你能帮我吗？

您可以下载php文件：https://dl.dropbox.com/u/52812919/chap-meta.rar :（很抱歉我的英语不好

2 个回复
SO网友:Adam

据我所见，没有为ct_list_url2, 执行此代码块时，

$meta = array(\'ct_download_link\', \'ct_list_url\', \'ct_list_url2\');
foreach($meta as $dt) {     
    if($dt == \'ct_list_url2\') {         
        $_POST[$dt] = get_blogspot_url($_POST[$dt]);
    }
    if(isset($_POST[$dt]) && $_POST[$dt] !== \'\') {
        update_post_meta($post->ID, $dt, $_POST[$dt]);
    } else {
        delete_post_meta($post->ID, $dt);   
    }
...
。。。事实上，这适用于$meta 大堆您发布的值在哪里都找不到，因此需要将它们传递到函数中。

相反，尝试以下方式，

foreach($_POST as $key => $val) { 

    $url = get_blogspot_url($val);

    if(isset($key) && $val !== \'\') {

       update_post_meta($post->ID, $key, $url);

    } else {

       delete_post_meta($post->ID, $key); 

}
但是，您需要小心，因为如果您提交的任何POST变量具有$key 返回一个空$val 然后你的else 条件将运行并删除为给定$key. 因此，如果之前在该字段中存储了一个值，则会将其删除。不确定这是否是您的预期目标？

如果你只想ct_list_url2 通过发布变量get_blogspot_url 功能，不包括其他$keys 然后你可以这样做，

foreach($_POST as $key => $val) { 

    if(isset($key) && $val !== \'\') {

        if($key == \'ct_list_url2\') {

        $url = get_blogspot_url($val);
        update_post_meta($post->ID, $key, $url);

        } else {

        //uses $val instead of $url to not run through get_blogspot_url() function
        update_post_meta($post->ID, $key, $val); 

        } 

    } else {

       delete_post_meta($post->ID, $key); 

    }

}
我希望这有帮助！

SO网友:T.Todua

只需更改此行：

if(isset($_POST[$dt]) && $_POST[$dt] !== \'\') {
至

if(!empty( $_POST[$dt])) {

结束
标签： custom-post-types   save-post   小码农  

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