'ids',
'hide_empty' => 1,
// We only need to know if there is more than one category.
'number' => 2,
) );
// Count the number of categories that are attached to the posts.
$all_the_cool_cats = is_countable( $all_the_cool_cats ) ? count( $all_the_cool_cats ) : 0;
set_transient( 'rowling_categories', $all_the_cool_cats );
}
if ( $all_the_cool_cats > 1 ) {
// This blog has more than 1 category so rowling_categorized_blog should return true.
return true;
} else {
// This blog has only 1 category so rowling_categorized_blog should return false.
return false;
}
}
/**
* Flush out the transients used in rowling_categorized_blog.
*/
function rowling_category_transient_flusher() {
if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
return;
}
// Like, beat it. Dig?
delete_transient( 'rowling_categories' );
}
add_action( 'edit_category', 'rowling_category_transient_flusher' );
add_action( 'save_post', 'rowling_category_transient_flusher' );