admin columns not working

Hey Anh Tran,

As far as I understand I just follow the steps as mentioned in the documentation. What I'v tried so far:

'admin_columns' => true,

'admin_columns' => 'after title',

but also the more advanced ways as described in your documenation.

BTW: The link in the sidebar to 'MB Admin Columns' gives a 404.

Sure, here we go:

$meta_boxes[] = array(
  'title'      => __( 'View', 'transport' ),
  'post_types' => 'transport',
  'fields'     => array(
    array(
      'id'   => 'show',
      'name' => __( 'Related', 'transport' ),
      'type' => 'post',
      'post_type' => 'page',
      'field_type' => 'checkbox_list',
      'admin-columns' => array(
        'position'    => 'before date',
        'title'       => __( 'Related', 'transport' ),
        'sort'        => true,
        ),
      ),
    ),
  );

Hi, that was a typo. 'admin_columns' does not fix the issue.

Before using this extension, I manually added some columns in the code. Could it be that this couses the trouble?

Hi Anh, this is the custom code I used for showing / hiding custom admin columns:

add_filter( 'manage_transport_posts_columns', 'set_transport_columns' );
function set_transport_columns($columns) {
	unset( $columns['date'] );
	$columns['show'] = __( 'Koppeling', 'transport' );
	$columns['date'] = 'Datum';
	set( $columns['date'] );
	return $columns;
}

add_action( 'manage_transport_posts_custom_column' , 'transport_columns', 10, 2 );
function transport_columns( $column, $post_id ) {
	switch ( $column ) {
		case 'show':
			echo get_post_meta( $post_id, 'show', true );
			break;
	}
}

Hi,

The issue of the missing admin columns keep occuring. For some unknown reason I can't get the admin columns to show. It works fine on one CPT, but is having trouble on another.

Even when I make a copy of a working CPT, it stops working. I have no idea where to look know.

Can you help me out?

Hi,

Hereby the code:

https://ghostbin.com/paste/ssuu2

As said, this code works fine for one CPT, but doesn't for another. Only difference between both are the funcion-titles and post-type names.
Could it be caused because of a earlier error where something is going wrong in building or filling a database table?
What makes me think that is when I rename 'suppliers' to 'sponsors', I get the same issue.