Wordpress:如何在wp_insert_post_data()中显示自定义错误消息
我将显示一条自定义错误消息Wordpress:如何在wp_insert_post_data()中显示自定义错误消息,wordpress,Wordpress,我将显示一条自定义错误消息 function ccl($data, $postarr = '') { if($data['post_status'] == "publish"){ $data['post_status'] = "draft"; echo '<div id="my-custom-error" class="error fade"><p>Publish not allowed</p></div>'; } retur
function ccl($data, $postarr = '') {
if($data['post_status'] == "publish"){
$data['post_status'] = "draft";
echo '<div id="my-custom-error" class="error fade"><p>Publish not allowed</p></div>';
}
return $data;
}
add_filter( 'wp_insert_post_data' , 'ccl' , '99' );
函数ccl($data,$postarr=''){
如果($data['post_status']==“publish”){
$data['post_status']=“草稿”;
回显“不允许发布”;
}
返回$data;
}
添加过滤器('wp_insert_post_data','ccl','99');
我尝试过很多想法,但每次都有一条成功的信息来自文章发表的wordpress。我可以取消成功消息并显示我自己的错误消息吗
如需帮助…您不能在筛选器中打印错误,因为在此之后用户将立即重定向。最好的方法是挂接重定向过滤器,并将消息变量添加到查询字符串中(这将覆盖任何现有Wordpress消息) 因此,在
wp\u insert\u post\u data
filter函数中添加重定向过滤器
add_filter('wp_insert_post_data', 'ccl', 99);
function ccl($data) {
if ($data['post_type'] !== 'revision' && $data['post_status'] == 'publish') {
$data['post_status'] = 'draft';
add_filter('redirect_post_location', 'my_redirect_post_location_filter', 99);
}
return $data;
}
function my_redirect_post_location_filter($location) {
remove_filter('redirect_post_location', __FUNCTION__, 99);
$location = add_query_arg('message', 99, $location);
return $location;
}
然后在重定向过滤器函数中添加一个消息变量
add_filter('wp_insert_post_data', 'ccl', 99);
function ccl($data) {
if ($data['post_type'] !== 'revision' && $data['post_status'] == 'publish') {
$data['post_status'] = 'draft';
add_filter('redirect_post_location', 'my_redirect_post_location_filter', 99);
}
return $data;
}
function my_redirect_post_location_filter($location) {
remove_filter('redirect_post_location', __FUNCTION__, 99);
$location = add_query_arg('message', 99, $location);
return $location;
}
最后连接到post\u updated\u messages
过滤器并添加您的消息,以便Wordpress知道打印什么
add_filter('post_updated_messages', 'my_post_updated_messages_filter');
function my_post_updated_messages_filter($messages) {
$messages['post'][99] = 'Publish not allowed';
return $messages;
}
您不能在筛选器中打印错误,因为在此之后用户立即被重定向。最好的方法是挂接重定向过滤器,并将消息变量添加到查询字符串中(这将覆盖任何现有Wordpress消息) 因此,在
wp\u insert\u post\u data
filter函数中添加重定向过滤器
add_filter('wp_insert_post_data', 'ccl', 99);
function ccl($data) {
if ($data['post_type'] !== 'revision' && $data['post_status'] == 'publish') {
$data['post_status'] = 'draft';
add_filter('redirect_post_location', 'my_redirect_post_location_filter', 99);
}
return $data;
}
function my_redirect_post_location_filter($location) {
remove_filter('redirect_post_location', __FUNCTION__, 99);
$location = add_query_arg('message', 99, $location);
return $location;
}
然后在重定向过滤器函数中添加一个消息变量
add_filter('wp_insert_post_data', 'ccl', 99);
function ccl($data) {
if ($data['post_type'] !== 'revision' && $data['post_status'] == 'publish') {
$data['post_status'] = 'draft';
add_filter('redirect_post_location', 'my_redirect_post_location_filter', 99);
}
return $data;
}
function my_redirect_post_location_filter($location) {
remove_filter('redirect_post_location', __FUNCTION__, 99);
$location = add_query_arg('message', 99, $location);
return $location;
}
最后连接到post\u updated\u messages
过滤器并添加您的消息,以便Wordpress知道打印什么
add_filter('post_updated_messages', 'my_post_updated_messages_filter');
function my_post_updated_messages_filter($messages) {
$messages['post'][99] = 'Publish not allowed';
return $messages;
}