David,
I did testing this weekend and found everything working well. The “All Sites” checkbox meets the need, so I won’t send the JS code for the check box manipulation.
I was able to generate PHP code that allowed me to copy the media categories and tags from the original site to the subsite. I only handle Media Categories and Att. Tags as listed on your General Setting tab in the section Taxonomy Support. I pasted the code in two sections below. The first section contains two functions. The first function loads an array from the source site with all the Media Categories and Att. Tags so it may be used in the second function to copy (insert) these into the target site. You will see that I handle site switching in the 2nd function and always return on the original site the routine was entered with.
/****************************************************************
* function get_media_cats_tags()
* gets the categories and tags assigned by the MLA plugin used
* to organize media and returns an array that may be iterated for individual
* terms and taxonomies
* items in the array needed for copying to another site are:
wp_term_taxonomy => taxonomy = 'attachment_category' or 'attachment_tag'
wp_term_taxonomy => term_id = int on the source (created when inserted)
wp_term_taxonomy => description = descriptive text of term
wp_term_taxonomy => parent = parent term_taxonomy_id if tiered, 0 otherwise
wp_terms => name = text displayed as friendly name for term
wp_terms => slug = slug for a particular term
wp_terms => term_group = int, usually 0
wp_term_taxonomy => term_taxonomy_id = int key auto generated when inserted
wp_terms => term_id = int key auto generated when inserted, used to relate
wp_terms and wp_term_taxonomy
*****************************************************************/
function get_media_cats_tags() {
$tags = get_terms( array(
'taxonomy' =>'attachment_tag',
'hide_empty' => false,
) );
if (is_wp_error( $tags )) $tags = array();
$cats = get_terms( array(
'taxonomy' => 'attachment_category',
'hide_empty' => false,
) );
if (is_wp_error( $cats )) $cats = array();
//combine the media categories and tags arrays and return the combined array
return array_merge($cats, $tags);
} // end function get_media_cats_tags()
/*****************************************************************
* function copy_media_cats_tags(array $media_cats_tags, int $target_site)
* copies the media categories and tags passed in an array
* (use function get_media_cats_tags() for input) and creates on the target
* site.
* 1. if multisite, iterate through array and do the following on target_site:
* 2. register_taxonomy_for_object_type( string $taxonomy, string $object_type )
* $object_type is 'attachment' for media
* 3. wp_insert_term( string $term, string $taxonomy, array|string $args = array() )
* 4. return to the original site
******************************************************************/
function copy_media_cats_tags($media_cats_tags, $target_site) {
if (is_multisite()) foreach ($media_cats_tags as $single) {
$parent_slug = null; // initialize
$parent_term_id = 0; // default for no parent
$site_id = get_current_blog_id(); // gets current site blog id
switch_to_blog( $target_site ); // selects the target blog
//register the taxonomy if it does not already exist
if (!taxonomy_exists( $single->taxonomy )) register_taxonomy_for_object_type( $single->taxonomy, 'attachment' );
//store and array of slugs in order to look up parent if needed
$slugs[$single->term_id] = $single->slug;
// check if the term has a parent, if so need the inserted parent
//get the original parent slug to be used for looking up inserted taxonomy
if ($single->parent > 0) {
$parent_slug = $slugs[$single->parent];
//get the new inserted term as an object
$inserted_term = get_term_by( 'slug', $parent_slug, $single->taxonomy, $output = OBJECT, $filter = 'raw' );
//extract the inserted term_id for parent
if ($inserted_term) $parent_term_id = $inserted_term->term_id;
} // end if ($single->parent > 0)
$args = array(
'description' => $single->description,
'slug' => $single->slug,
'parent' => $parent_term_id,
);
//insert the term if it does not already exist
if (!term_exists( $single->name, $single->taxonomy ) ) wp_insert_term( $single->name, $single->taxonomy, $args );
} // end foreach ($media_cats_tags as $single)
if (is_multisite()) switch_to_blog( $site_id ); // return to original site
} // end copy_media_cats_tags($media_cats_tags, $target_site)
Below is test code I used to force the desired subsite for testing. This could be handled in your iterative loop you have that copies the settings to each selected site where the site_id is changed.
/***** code for testing media cats & tags copy ***/
$media_cats_tags = get_media_cats_tags();
if (is_multisite()) $target_id = 72; // kai site for testing
copy_media_cats_tags($media_cats_tags, $target_id);
/*****^^^^^ code for testing media cats & tags copy ^^^^***/
