i have a function i use to stop users from adding new terms to custom taxonomies, this is the code:
add_action( 'pre_insert_term', 'prevent_terms', 1, 2 );
function prevent_terms ( $term, $taxonomy ) {
if ( 'language' === $taxonomy) {
return new WP_Error( 'term_addition_blocked', __( 'You cannot add terms to this taxonomy' ) );
}
return $term;
}
This works fine when you are on the custom taxonomy page (/wp-admin/edit-tags.php?taxonomy=language) Because you see the warning.
BUT when you try to add a new term by saving a post, you get no warning, the term simply don't get saved. What i need is add a warning to this function so the person saving a post knows he cannot add new terms to this taxonomy.
Any way to achieve this? Thanks.
i have a function i use to stop users from adding new terms to custom taxonomies, this is the code:
add_action( 'pre_insert_term', 'prevent_terms', 1, 2 );
function prevent_terms ( $term, $taxonomy ) {
if ( 'language' === $taxonomy) {
return new WP_Error( 'term_addition_blocked', __( 'You cannot add terms to this taxonomy' ) );
}
return $term;
}
This works fine when you are on the custom taxonomy page (/wp-admin/edit-tags.php?taxonomy=language) Because you see the warning.
BUT when you try to add a new term by saving a post, you get no warning, the term simply don't get saved. What i need is add a warning to this function so the person saving a post knows he cannot add new terms to this taxonomy.
Any way to achieve this? Thanks.
Share Improve this question asked Sep 4, 2016 at 16:53 Michael RogersMichael Rogers 5498 silver badges37 bronze badges 8- you can try to hide the taxonomy metabox on the edit page and add a custom metabox where we can only choose the existing terms – mmm Commented Sep 4, 2016 at 17:05
- Why do show that box if it shouldn't be used? The correct way is setting the proper capabilities when you register the taxonomy. – fuxia ♦ Commented Sep 4, 2016 at 17:22
- @mmm that would work, i wouldn't know how to do it though. – Michael Rogers Commented Sep 4, 2016 at 18:11
- @toscho You are confused. The box is there for users to pick from the hundred of available terms. Not to add new ones that are often misspelled, duplicated or abbreviations. – Michael Rogers Commented Sep 4, 2016 at 18:12
- I am talking about the Add new box, not the Select box. You can avoid showing both by registering the taxonomy correctly. – fuxia ♦ Commented Sep 4, 2016 at 19:17
1 Answer
Reset to default 7 +50Whilst this doesn't show a warning as you are asking for, you could always hide the "add new" link using the admin_head action:
function yourprefix_admin_head() {
echo '<style>
#language-add-toggle {
display: none;
}
</style>';
}
add_action('admin_head', 'yourprefix_admin_head');
The element ID is the taxonomy name followed by -add-toggle.
This is enough for most cases, unless you think your users are a bit devious. Hope it helps.