我正在为前端滑块创建自定义帖子类型。它接受在自定义字段中输入的值，并将其用作文章标题。它在我的本地主机和个人主机上都能完美地工作。但是，当我在客户端的主机上安装它时，会出现以下错误：
Notice: Undefined index: wys_slider_title in /data02/client_id/public_html/wp-content/themes/waiyin2015/inc/cpt/slides.php on line 302
WordPress database error: [Column \'post_title\' cannot be null]
第302行是发布幻灯片标题的函数。完整功能如下：
function wys_slide_title( $data , $postarr ) {
if( $data[\'post_type\'] == \'slider\' ) {
$slide_title = $_POST[\'wys_slider_title\']; // <<<<<< This is line 302
$new_title = $slide_title;
// Set slug date
$post_date = date(\'Ymd-His\');
// $post_slug = sanitize_title_with_dashes($post_date, \'\', $context = \'save\');
$post_slugsan = sanitize_title($post_date);
$data[\'post_title\'] = $new_title;
$data[\'post_name\'] = $post_slugsan;
}
return $data;
}
add_filter( \'wp_insert_post_data\' , \'wys_slide_title\' , \'99\', 2 );
wys_slider_title 是元框内的字段，其中包含幻灯片的标题、图像和链接字段。同样，当我在本地主机或主机提供程序上使用此选项时，不会出现错误，但我客户端的主机提供程序不同，会抛出此错误
因此，我无法发布任何内容，我被告知我的内容将
"Submitted for review", 尽管我是网站的管理员。
有谁能帮助解决可能出现的问题吗？
编辑：有人要求我将函数发布到wys_slider_title 已声明。这是用于运行post类型的完整脚本：
// Stories custom post type
add_action(\'init\', \'wys_sliders\');
function wys_sliders() {
$labels = array(
\'name\' => _x(\'Front Slider\', \'post type general name\'),
\'singular_name\' => _x(\'Front Slider\', \'post type singular name\'),
\'add_new\' => _x(\'Add New\', \'post type item\'),
\'add_new_item\' => __(\'Add New Slide\'),
\'edit_item\' => __(\'Edit Slide\'),
\'new_item\' => __(\'New Slide\'),
\'view_item\' => __(\'View Slide\'),
\'search_items\' => __(\'Search Slides\'),
\'not_found\' => __(\'Nothing found\'),
\'not_found_in_trash\' => __(\'Nothing found in Trash\'),
\'parent_item_colon\' => \'\'
);
$args = array(
\'labels\' => $labels,
\'public\' => true,
\'publicly_queryable\' => true,
\'show_ui\' => true,
\'query_var\' => true,
\'menu_icon\' => \'dashicons-slides\',
\'capability_type\' => \'post\',
\'hierarchical\' => false,
\'menu_position\' => 24,
\'supports\' => false,
\'can_export\' => true,
\'show_in_menu\' => true,
\'has_archive\' => false,
);
register_post_type( \'slider\' , $args );
flush_rewrite_rules();
}
add_action("admin_init", "wys_slide_admin_init");
function wys_slide_admin_init(){
add_meta_box("mb_wys_slides", "Slides", "wys_slides_display", "slider", "normal", "high");
}
add_action( \'admin_enqueue_scripts\', \'wys_slides_scripts\' );
function wys_slides_scripts(){
global $post_type;
if ( $post_type == "slider" ){
wp_enqueue_style(\'slider-css-styles\', get_template_directory_uri().\'/inc/cpt/slides.css\');
}
}
function wys_slides_display(){
$source = get_post_meta( get_the_ID(), \'selected_source\', true );
$image = get_post_meta( get_the_ID(), \'wys_slider_image\', true );
$video = get_post_meta( get_the_ID(), \'video_preview\', true );
$title = get_post_meta( get_the_ID(), \'wys_slider_title\', true );
$caption = get_post_meta( get_the_ID(), \'wys_slider_caption\', true );
$link = get_post_meta( get_the_ID(), \'wys_slider_link\', true );
$target = get_post_meta( get_the_ID(), \'wys_link_target\', true );
?>
<script>
function resetItAll(){
// Clear fields
$(\'#image-url\').val(\'\');
$(\'#video-url\').val(\'\');
$(\'#wys-slider-image\').val(\'\');
$(\'#video-preview\').val(\'\');
// Clear Uploaded Image
$(\'#slide-upload\').removeClass(\'hasimage\');
$(\'#slide-upload\').css(\'background-image\', \'none\');
// Clear Image by URL
$(\'#slide-url\').removeClass(\'hasimage\');
$(\'#slide-url\').css(\'background-image\', \'none\');
$(\'#slide-url .replace-image\').hide();
$(\'#slide-url .form-wrap\').show();
// Clear Video
$(\'#slide-video\').removeClass(\'hasimage\');
$(\'#slide-video\').css(\'background-image\', \'none\');
$(\'slide-video .replace-video\').hide();
$(\'#slide-video .form-wrap\').show();
}
(function($){
$.fn.extend({
limiter: function(elem){
$(this).on(\'keyup focus\', function(){
setCount(this, elem);
});
function setCount(src, elem){
var chars = src.value.length;
var limit = $(src).attr(\'maxlength\');
if ( chars > limit ){
src.value = src.value.substr(0, limit);
chars = limit;
}
var charsRemaining = limit - chars;
if ( charsRemaining <= (limit*.2) ) { var charsLeft = \'<span class="charlimit-warning">\'+charsRemaining+\'</span>\'; } else { var charsLeft = charsRemaining; }
$(elem).html( charsLeft + \'/\' + limit );
}
setCount($(this)[0], elem);
}
});
})(jQuery);
jQuery(document).ready(function($){
$(\'.image-src a\').click(function(e){
e.preventDefault();
var tab = $(this).data(\'tab\');
$(\'.image-src a\').removeClass(\'selected\');
$(\'.tab-content\').removeClass(\'show-tab\');
$(this).addClass(\'selected\');
$("#slide-"+tab).addClass(\'show-tab\');
$(\'#selected-source\').val(tab);
});
$(\'#upload-image\').click(function(e) {
e.preventDefault();
var custom_uploader = wp.media({
title: \'Select Slider Image\',
button: {
text: \'Select Image\'
},
multiple: false // Set this to true to allow multiple files to be selected
})
.on(\'select\', function() {
var attachment = custom_uploader.state().get(\'selection\').first().toJSON();
resetItAll();
$(\'#slide-upload\').addClass(\'hasimage\');
$(\'#slide-upload\').css(\'background-image\', \'url(\'+attachment.sizes.large.url+\')\');
$(\'#wys-slider-image\').val(attachment.id);
})
.open();
});
$(\'#fetch-image\').click(function(e){
e.preventDefault();
var imagesrc = $(\'#image-url\').val();
$("<img>", {
src: imagesrc,
error: function(){
$(\'.error-msg .error-text\').html(\'The URL you provided is not a valid image.\');
$(\'.error-msg\').show(0, function(){
$(\'#fetch-image\').click(function(){
$(\'.error-msg\').fadeOut(300);
});
$(\'.error-msg\').delay(7000).fadeOut(300);
});
},
load: function(){
resetItAll();
$(\'#slide-url\').addClass(\'hasimage\');
$(\'#slide-url\').css(\'background-image\', \'url(\'+imagesrc+\')\');
$(\'#wys-slider-image\').val(imagesrc);
$(\'#slide-url .form-wrap\').hide();
$(\'#slide-url .replace-image\').show();
}
});
});
$(\'#replace-image\').click(function(e){
e.preventDefault();
$(\'#image-url\').val(\'\').focus();
$(\'#slide-url .replace-image\').hide();
$(\'#slide-url .form-wrap\').show();
});
$(\'#fetch-video\').click(function(e){
e.preventDefault();
var videosrc = $(\'#video-url\').val();
$.ajax({
method: "POST",
url: \'<?php echo get_template_directory_uri(); ?>/inc/cpt/inc.videoimg.php\',
data: { src: videosrc },
success: function(data){
if ( data == \'invalid.src\' ) {
$(\'.error-msg .error-text\').html(\'Please use a video from YouTube or Vimeo.\');
$(\'.error-msg\').show(0, function(){
$(\'#fetch-video\').click(function(){
$(\'.error-msg\').fadeOut(300);
});
$(\'.error-msg\').delay(7000).fadeOut(300);
});
} else {
resetItAll();
$(\'#slide-video\').addClass(\'hasimage\');
$(\'#slide-video\').css(\'background-image\', \'url(\'+data+\')\');
$(\'#wys-slider-image\').val(videosrc);
$(\'#video-preview\').val(data);
$(\'#slide-video .form-wrap\').hide();
$(\'#slide-video .replace-video\').show();
}
},
error: function( xhr, status, error){
if (xhr.status > 0) console.log(\'got error: \'+status); // Status 0 - when load is interrupted
}
});
});
$(\'#replace-video\').click(function(e){
e.preventDefault();
$(\'#video-url\').val(\'\').focus();
$(\'slide-video .replace-video\').hide();
$(\'#slide-video .form-wrap\').show();
});
$(\'#link-target\').click(function(e){
e.preventDefault();
$(this).toggleClass(\'selected\');
if ( $(this).hasClass(\'selected\') ) {
$(\'#wys-link-target\').val(\'1\');
} else {
$(\'#wys-link-target\').val(\'0\');
}
});
$(\'#slide-title\').limiter(\'#slide-title-limit\');
$(\'#slide-caption\').limiter(\'#slide-caption-limit\');
});
</script>
<div class="wys-slides">
<div class="slide" id="slide">
<div class="body">
<div class="slide-image-wrap">
<div class="error-msg" style="display: none;">
<span class="dashicons dashicons-warning"></span>
<span class="error-text">This is an error message.</span>
</div>
<div id="slide-upload" class="uploaded image tab-content <?php if ( $source == \'upload\' && $image ) { $imgid = wp_get_attachment_image_src( $image, \'large\' ); echo \'hasimage show-tab" style="background-image: url(\'.$imgid[0].\');\'; } if ( !$source ) { echo \'show-tab\'; } ?>">
<a href="#upload" class="upload" id="upload-image"><span class="icon dashicons dashicons-upload"></span>
Upload Image</a>
</div>
<div id="slide-url" class="from-url image tab-content <?php if ( $source == \'url\' && $image ) { echo \'hasimage show-tab" style="background-image: url(\'.$image.\');\'; } ?>">
<div class="form-wrap" <?php if ( $source == \'url\' && $image ) { echo \'style="display: none;"\'; } ?>>
<label>Image URL</label>
<input type="url" class="image-url" id="image-url" value="<?php if ( $source == \'url\' && $image ) { echo $image; } ?>" />
<input type="button" name="fetch-image" id="fetch-image" value="Get Image" />
</div>
<div class="replace-image hasimage" <?php if ( $source == \'url\' && !$image ) { echo \'style="display: none;"\'; } ?>>
<a href="#replace-image" id="replace-image" class="upload"><span class="icon dashicons dashicons-controls-repeat"></span>
Replace Image</a>
</div>
</div>
<div id="slide-video" class="video image tab-content <?php if ( $source == \'video\' && $image ) { echo \'hasimage show-tab" style="background-image: url(\'.$video.\');\'; } ?>">
<div class="form-wrap" <?php if ( $source == \'video\' && $image ) { echo \'style="display: none;"\'; } ?>>
<label>Video URL <span>Youtube or Vimeo only</span></label>
<input type="url" class="video-url" id="video-url" value="<?php if ( $source == \'video\' && $image ) { echo $video; } ?>" />
<input type="button" name="fetch-video" id="fetch-video" value="Get Video" />
</div>
<div class="replace-video hasimage" <?php if ( $source == \'video\' && !$image ) { echo \'style="display: none;"\'; } ?>>
<a href="#replace-video" id="replace-video" class="upload"><span class="icon dashicons dashicons-controls-repeat"></span>
Replace Video</a>
</div>
</div>
<div class="image-src">
<a href="#upload-image" class="first <?php if ( $source == "upload" || !$source ) { echo \'selected\'; } ?>" data-tab="upload"><span class="dashicons dashicons-upload"></span>
Upload</a>
<a href="#from-url" class="last <?php if ( $source == "url" ) { echo \'selected\'; } ?>" data-tab="url"><span class="dashicons dashicons-admin-links"></span>
From URL</a>
</div>
</div>
<div class="slide-display-data">
<div class="row slide-title">
<div class="field">
<label>
Slide Title
<span class="notes" id="slide-title-limit"></span>
</label>
<input type="text" class="slide-title" name="wys_slider_title" id="slide-title" maxlength="50" placeholder="Enter Title" value="<?php echo $title; ?>" />
</div>
</div>
<div class="row slide-caption">
<div class="field">
<label>
Slide Caption
<span class="notes" id="slide-caption-limit"></span>
</label>
<textarea class="slide-caption" name="wys_slider_caption" maxlength="140" id="slide-caption"><?php echo $caption; ?></textarea>
</div>
</div>
<div class="row slide-link">
<div class="field">
<label>
Slide Link
<span class="notes">eg. http://www.google.com</span>
</label>
<input type="text" class="slide-link" name="wys_slider_link" value="<?php echo $link; ?>" />
</div>
<a href="#new-tab" id="link-target" class="link-target <?php if ( $target == "1" ) { echo \'selected\'; } else { } ?>" title="Open link in new tab"><span class="icon dashicons dashicons-external"></span></a>
</div>
<input type="hidden" class="wys-link-target" id="wys-link-target" name="wys_link_target" value="<?php if ( !$target ) { echo \'0\'; } else { echo $target; } ?>" />
<input type="hidden" id="selected-source" name="selected_source" value="<?php if ( !$source ) { echo \'upload\'; } else { echo $source; } ?>" />
<input type="hidden" id="wys-slider-image" name="wys_slider_image" value="<?php echo $image; ?>" />
<input type="hidden" id="video-preview" name="video_preview" value="<?php echo $video; ?>" />
</div>
<div class="clear"></div>
</div>
</div>
</div>
<?php
}
function wys_slide_title( $data , $postarr ) {
if( $data[\'post_type\'] == \'slider\' ) {
$slide_title = $_POST[\'wys_slider_title\'];
$new_title = $slide_title;
// Set slug date
$post_date = date(\'Ymd-His\');
// $post_slug = sanitize_title_with_dashes($post_date, \'\', $context = \'save\');
$post_slugsan = sanitize_title($post_date);
$data[\'post_title\'] = $new_title;
$data[\'post_name\'] = $post_slugsan;
}
return $data;
}
add_filter( \'wp_insert_post_data\' , \'wys_slide_title\' , \'99\', 2 );
add_action(\'save_post\', \'wys_slides_save_details\');
function wys_slides_save_details(){
global $post;
update_post_meta($post->ID, "video_preview", $_POST["video_preview"]);
update_post_meta($post->ID, "wys_slider_image", $_POST["wys_slider_image"]);
update_post_meta($post->ID, "selected_source", $_POST["selected_source"]);
update_post_meta($post->ID, "wys_link_target", $_POST["wys_link_target"]);
update_post_meta($post->ID, "wys_slider_link", $_POST["wys_slider_link"]);
update_post_meta($post->ID, "wys_slider_caption", strip_tags($_POST["wys_slider_caption"]));
update_post_meta($post->ID, "wys_slider_title", strip_tags($_POST["wys_slider_title"]));
}
