Update causes Meta tags to disappear

i have to use get_post_meta to make it work, just to let you guys know

Hi Tran, i don’t understand what do you mean.
Yes, my field is a text field but return a post id of a custom post type.

I use
get_permalink(rwmb_meta('_lnw-meta_titolo_percorso','',$page_children->ID ))

inside a page loop and convert it in a link to custom post type page.

What’s wrong? Thanks again!

I’m sorry to reinterrup this conversation but the problem does not come from a wrong get_the_ID().

I did it before the to places where I use rwmb_meta and the first one get 22 (the page id) and the second one 327 (the post id in the second loop). rwmb_meta works in the second loop but not in the page loop.

Any other idea ?
I can send you full code if you want.

$post_id = get_the_ID();
    // variables
    $titreservices = rwmb_meta('cc_text-section-services', $post_id);

This code doesn’t work in 4.8, $post_id is 22 (page id) and the page has a meta cc_text-section-services (cas access it in the admin and in the front via get_post_meta)

I have another example (sorry to spam but I’m trying to give as much informations as possible) :

On a contact page :

<article class="col-md-8">
					<?php the_content(); ?>
					<div class="contact-infos">
						<?php echo rwmb_meta('cc_textarea-infos-contact'); ?>
					</div>
					<div class="contact-reseaux">
						<?php echo rwmb_meta('cc_textarea-reseaux-contact'); ?>
					</div>
				</article>

Nothing is echoed in 4.8, works well in 4.7.3. Both are wysiwyg fields.

It seems to me that rwmb_meta can’t get (or use) the id of a regular wordpress page.

@jlesacher: As you can see in the video I posted, the helper function works just fine for default WordPress query. I suppose there must be elsewhere causes the problem.

Can you please send me the admin info and FTP info via the contact form at https://metabox.io/contact/?

@giovanicrim: I have recorded a video to show how I test your code, please check it:

https://recordit.co/AWTQ3TmFjO

@ruoc: Glad to see it works for you with get_post_meta. If you still need help, please let me know the code you use to register meta boxes and display value in the frontend.

@tran Ngoc Tuan Anh : Thanks for your support. I used WP_Debug to find that the $post_id variable was causing the trouble. Not sure why in 4.8 and not in 4.7.3 but anyway it was my mistake.

If you need post_id in the register_meta_boxes function use this :

global $post;

// Admin
if (isset($_GET['post']) && !empty($_GET['post'])) {
	$post_id = $_GET['post'];
}
// Front
elseif (isset($post) && !empty($post)) {
	$post_id = $post->ID;
}
// Why not
else {
	$post_id = 0;
}

Working fine now !

Thanks again, Johann

@jlesacher: Glad to hear you found the problem. Just one question to make everything clear, cause there are people might see the same problem: where do you put the code above? Can you share how you debug the post ID?

Hi Tran,

I’ve found the problem and i’ve solved it. In metabox register function i declare the $meta_boxes[] array if some conditions are verified in back-end. The same conditions were not verified in front-end, too. Then, without $meta_boxes[] declaration, those values didn’t appear. I think that, with updating plugin, something is changed about this because with 4.7.3 version i hadn’t got this problem.

Thanks again!

@giovanicrim: Great to see you resolved the problem. Yes, you’re right about the conditions. Since 4.8.0, the filter rwmb_meta_boxes are used in both frontend and backend, and thus your code must be compatible to run both in the backend and fronend.

If you want to use the post ID in the Metabox declarations in Meta Box 4.8 here is a full code example :

// Meta Box
add_filter( 'rwmb_meta_boxes', 'cc_register_meta_boxes' );
function cc_register_meta_boxes( $meta_boxes )
{
	$prefix = 'cc_';

	global $post;
	// Admin
	if (isset($_GET['post']) && !empty($_GET['post'])) {
	 $post_id = $_GET['post'];
	}
	// Front
	elseif (isset($post) && !empty($post)) {
	 $post_id = $post->ID;
	}
	// Why not
	else {
	 $post_id = 0;
	}

	// Metabox for page id 22
	if ($post_id == 22) {
		$meta_boxes[] = array(
			'id'         => 'Description-blog',
			'title'      => __( 'En Détail', 'meta-box' ),
			'post_types' => array( 'post' ),
			'autosave'   => true,
			'fields'     => array(

				// Sous titre
				array(
					'name'  => __( 'Sous titre', 'meta-box' ),
					'id'    => "{$prefix}text-blog",
					'type'    => 'text',
					'clone' => false,
				),

				// URL
				array(
					'name'  => __( 'Lien vers site web', 'meta-box' ),
					'id'    => "{$prefix}url-blog",
					'type'    => 'text',
					'clone' => false,
				),
			)
		);
	}
}

turn out my problem is because i register metabox inside:

if(is_admin()){
}

commend out is_admin then i could get meta using plugin’s function

@jlesacher, @ruoc: Thank you very much.

Apologies for being silent, bearing in mind this was my issue/ticket!

I’ve finally been able to get back to this project, and just updated to 4.8.2 and Meta box works perfectly, without me changing any of the code at all.

So, thank you for listening to us all and for your support.

Scratch that, I did have to remove the following line from my theme functions file, so that the back-end would stop throwing an error, but it all works perfectly now.

rwmb_meta( $field_id, $args = array(), $post_id = null );