Advanced Custom Fields

Sort tags and categories with ACF in WordPress

Start by adding a custom field to your tag or category with Advanced Custom Fields, name it to “custom_field” or something, and add this to your functions.php.

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function sort_tags_by_customer_field($b, $a){
    return strcmp($a->custom_field, $b->custom_field);
}

 

Modify the tag or category object in the loop by getting the custom field, but it back, sort it and use it how you want.

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$terms = get_the_terms( $post->ID, 'custom_tag');
if($terms){
    $t = 0;
    foreach($terms as $term){
        $custom_field = get_field('custom_field', $term);
        $terms[$t]->custom_field = $custom_field;
        $t++;
    }
 
    usort($terms, 'sort_tags_by_customer_field');
 
    foreach($terms as $term){
        echo '<span class="btn btn-primary btn-xs">';
        echo $term->name;
        echo '</span>';
    }
}

 

Advanced Custom Fields and GIT in WordPress

Include Advanced Custom Fields or Advanced Custom Fields Pro in your theme and save fields groups as json (pretty awesome). This will allow you to easily version control fields and fieldgroups in GIT. Just move the plugin to your theme folder, rename it to “acf” and create another folder called “acf-fields”. Paste this to your functions.php.

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// Set the path
add_filter('acf/settings/path', 'my_acf_settings_path');
  function my_acf_settings_path( $path ) {
    $path = get_stylesheet_directory() . '/acf/';
    return $path;
}
 
// Set the directory
add_filter('acf/settings/dir', 'my_acf_settings_dir');
  function my_acf_settings_dir( $dir ) {
    $dir = get_stylesheet_directory_uri() . '/acf/';
    return $dir;
}
 
// uncomment this to hide the menu in wp-admin
//add_filter('acf/settings/show_admin', '__return_false');
 
// Include acf in your theme
include_once( get_stylesheet_directory() . '/acf/acf.php' );
 
 
// Save fields groups to file
add_filter('acf/settings/save_json', 'my_acf_json_save_point');
function my_acf_json_save_point( $path ) {
  $path = get_stylesheet_directory() . '/acf-fields/'; // this folder needs to be created first
  return $path;
}
 
// Load field groups from file
add_filter('acf/settings/load_json', 'my_acf_json_load_point');
function my_acf_json_load_point( $paths ) {
  unset($paths[0]);
  $paths[] = get_stylesheet_directory() . '/acf-fields/'; // this folder needs to be created first
  return $paths;
}

 

Modify ACF post object result to include Polylang language in WordPress admin

Modify the result in a ACF post object field in WordPress admin by including language slug from Polylang. Instead of having multiple object with the same title (but on different languages), add this to your functions.php. Don’t forget to change “field_name” to what ever your field is called.

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add_filter('acf/fields/post_object/result', 'my_post_object_result', 10, 4);
function my_post_object_result( $result, $object, $field, $post ) {
    global $polylang;
    $language = $polylang->model->get_post_language($object->ID);
    $result .= ' (' . $language->slug . ')';
    return $result;
}
 
add_filter('acf/fields/post_object/result/name=field_name', 'my_post_object_result', 10, 4);