[Resolved] How to set an Element location to Child of a Parent Page

[Tim]

Hello

Previously I have created custom fields for posts with ACF setting their location as:
“Post Category” “is equal to” “CategoryName”.

I am then able to create an Element hook to Display Location as:
“Post Category” “is equal to” “CategoryName”.

Good.

However, with Pages I create custom fields where “Page Parent” “is equal to” “ParentPageName”.

But I do not see an equivalent Display Location for my hook, only
“Page” “is equal to” “SpecificPageName”

Am I missing an option ?

[David]

Hi there,

nope not missing an option – parent relationships are something we are looking into for display rules and maybe a future option. For now it requires a filter like the one shared by this user:

https://generatepress.com/forums/topic/conditionally-display-hook-on-sub-page-of-parent/#post-760775

[Tim]

Hi David

Look forward to that page relationships added to Elements.

Thank you for pointing out that thread.

Turns out this post was the one I needed as it includes and array of Parent Pages:
https://generatepress.com/forums/topic/conditionally-display-hook-on-sub-page-of-parent/#post-1092863

add_filter( 'generate_hook_element_display', function( $display, $element_id ) {
  global $post;

  if ( $element_id===3106 && 
       ( is_page(array(1291,1326)) || 
         is_page() && $post->post_parent===1291 || 
         is_page() && $post->post_parent===1326 
       ) 
     ) {
     $display = true;
  }	
  return $display;
}, 10, 2 );

What does the }, 10, 2 ); part represent ?

[David]

The Priority and the number of arguments

https://developer.wordpress.org/reference/functions/add_filter/

[Author]

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