[Support request] Display Elements via filters

[melanie]

I have several custom headers (elements) that I would like to display via filters vs. adding a long page list. I wrote the function but something must be wrong. Any pointers?

//Apply Custom Page Header based on Ancestor
add_filter( 'generate_header_element_display', function( $display, $element_id ) {
    if ( 45458 === $element_id && is_array( $ancestors ) && in_array( 44258, $ancestors ) ) {
        $display = true;
    }

    return $display;
}, 10, 2 );

[Tom]

Hi there,

You don’t seem to have anything defined as $ancestors.

Are you trying to target a list of regular pages, or a list of child pages to a specific parent page?

[melanie]

A list of child pages to an ancestor. The ancestor being page ID 44258.

Thanks
Melanie

[Tom]

In that case, I think you’d do this:

add_filter( 'generate_header_element_display', function( $display, $element_id ) {
    $children = get_children( array( 'post_parent' => 44258 ) );

    if ( 45458 === $element_id && ! is_empty( $children ) && is_singular( $children ) ) {
        $display = true;
    }

    return $display;
}, 10, 2 );

[Author]

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