is_wpml = true;
$this->is_multilang = true;
}
// polyLang
if ( defined( 'POLYLANG_VERSION' ) && function_exists( 'pll_default_language' ) ) {
$this->is_polylang = true;
$this->is_multilang = true;
}
if ( $this->is_multilang ) {
add_action( 'acf/init', array( $this, 'init' ), 99 );
}
}
function init() {
// polylang specific
if ( $this->is_polylang ) {
// default/Current Language
$dl = pll_default_language( 'locale' );
$cl = pll_current_language( 'locale' );
// update settings
acf_update_setting( 'default_language', $dl );
acf_update_setting( 'current_language', $cl );
add_filter( 'acf/pre_load_reference', array( $this, 'polylang_preload_reference' ), 10, 3 );
add_filter( 'acf/pre_load_value', array( $this, 'polylang_preload_value' ), 10, 3 );
}
// options page Message
add_action( 'acf/options_page/submitbox_before_major_actions', array( $this, 'options_page_message' ) );
// acf options post id
add_filter( 'acf/validate_post_id', array( $this, 'set_options_post_id' ), 99, 2 );
}
function polylang_preload_reference( $null, $field_name, $post_id ) {
// validate post id
$original_post_id = $this->polylang_validate_preload_post_id( $post_id );
if ( !$original_post_id ) {
return $null;
}
$reference = acf_get_metadata( $post_id, $field_name, true );
if ( $reference !== null ) {
return $null;
}
return acf_get_metadata( $original_post_id, $field_name, true );
}
function polylang_preload_value( $null, $post_id, $field ) {
// validate post id
$original_post_id = $this->polylang_validate_preload_post_id( $post_id );
if ( !$original_post_id ) {
return $null;
}
// get field name
$field_name = $field['name'];
// check store
$store = acf_get_store( 'values' );
if ( $store->has( "$post_id:$field_name" ) ) {
return $null;
}
// load value from database
$value = acf_get_metadata( $post_id, $field_name );
// use field's default_value if no meta was found
if ( $value !== null ) {
return $null;
}
return acf_get_value( $original_post_id, $field );
}
function options_page_message() {
$default_language = acf_get_setting( 'default_language' );
$current_language = acf_get_setting( 'current_language' );
$message = false;
// polylang
if ( $this->is_polylang ) {
if ( !$current_language ) {
$current_language = $default_language;
}
$message = "Language: {$current_language}";
$nice_language = false;
$nice_flag = false;
$languages = pll_languages_list( array(
'hide_empty' => false,
'fields' => false,
) );
if ( $languages ) {
foreach ( $languages as $language ) {
if ( $language->locale !== $current_language ) {
continue;
}
$nice_language = $language->name;
$nice_flag = $language->flag_url;
break;
}
}
if ( $nice_language ) {
$message = "
Language: {$nice_language}";
}
if ( $default_language === $current_language ) {
$message .= ' (Default)';
}
}
// wpml
elseif ( $this->is_wpml ) {
if ( $current_language === 'all' ) {
$current_language = 'All';
}
$message = "Language: {$current_language}";
if ( $current_language !== 'All' ) {
$nice_language = false;
$nice_flag = false;
$languages = apply_filters( 'wpml_active_languages', null, array( 'skip_missing' => 0 ) );
if ( $languages ) {
foreach ( $languages as $language ) {
if ( $language['language_code'] !== $current_language ) {
continue;
}
$nice_language = $language['native_name'];
$nice_flag = $language['country_flag_url'];
break;
}
}
if ( $nice_language ) {
$message = " Language: {$nice_language}";
}
}
}
if ( empty( $message ) ) {
return;
}
echo "{$message}
";
}
function set_options_post_id( $post_id, $original_post_id ) {
// bail early if original post id is 'options' ||'option'
if ( !is_string( $post_id ) ) {
return $post_id;
}
$data = acf_get_post_id_info( $post_id );
// bail early if post id isn't an option type
if ( $data['type'] !== 'option' ) {
return $post_id;
}
// options Exception
// $post_id already translated during the native acf/validate_post_id
if ( in_array( $original_post_id, array( 'options', 'option' ) ) ) {
// exclude filter
$exclude = apply_filters( 'acfe/modules/multilang/exclude_options', array() );
if ( in_array( 'options', $exclude ) ) {
return 'options';
}
return $post_id;
}
// bail early if no Options Page found with that post id
if ( !$this->is_options_page( $post_id ) ) {
return $post_id;
}
// bail early if already localized: 'my-options_en_US'
if ( $this->is_localized( $post_id ) ) {
return $post_id;
}
// append current language to post id
$dl = acf_get_setting( 'default_language' );
$cl = acf_get_setting( 'current_language' );
// add Language
if ( $cl && $cl !== $dl ) {
$post_id .= '_' . $cl;
}
return $post_id;
}
function polylang_validate_preload_post_id( $post_id ) {
// bail early if admin screen
if ( is_admin() || !is_string( $post_id ) ) {
return false;
}
// get post id info
$data = acf_get_post_id_info( $post_id );
// bail early if post id isn't an option type
if ( $data['type'] !== 'option' ) {
return false;
}
// bail early if not localized
if ( !$this->is_localized( $post_id ) ) {
return false;
}
$original_post_id = preg_replace( '/([_\-][A-Za-z]{2}_[A-Za-z]{2})$/', '', $post_id );
// check the regex
if ( $original_post_id === $post_id ) {
return false;
}
// bail early if no Options Page found with that post id
if ( !$this->is_options_page( $original_post_id ) ) {
return false;
}
return $original_post_id;
}
function is_localized( $post_id ) {
// check if post id ends with '-en_US' || '_en_US' || '-en' || '_en'
// https://regex101.com/r/oMsyeL/4
preg_match( '/(?P[_\-][A-Za-z]{2}_[A-Za-z]{2})$|(?P[_\-][A-Za-z]{2})$/', $post_id, $matches );
if ( empty( $matches ) ) {
return false;
}
// cleanup matches
$lang = array();
foreach ( $matches as $key => $val ) {
if ( is_int( $key ) || empty( $val ) ) {
continue;
}
$lang = array(
'type' => $key,
'lang' => strtolower( substr( $val, 1 ) ), // Lowercase + Remove the first '_'
);
}
if ( empty( $lang ) ) {
return false;
}
// get wpml/polylang languages list
$languages = $this->get_languages( $lang['type'] );
$languages = array_map( 'strtolower', $languages );
// compare matches vs wpml/polylang languages list
return in_array( $lang['lang'], $languages );
}
function is_options_page( $post_id ) {
// check if post id already in options pages
if ( in_array( $post_id, $this->options_pages ) ) {
return true;
}
// get acf options pages
$options_pages = acf_get_array( acf_get_options_pages() );
$list = wp_list_pluck( $options_pages, 'post_id', true );
// add 'post type list' location
$post_types = acf_get_post_types( array(
'show_ui' => 1,
'exclude' => array( 'attachment' ),
) );
foreach ( $post_types as $post_type ) {
$list[] = "{$post_type}_options";
}
// add 'taxonomy list' location
$taxonomies = acf_get_taxonomies();
foreach ( $taxonomies as $taxonomy ) {
$list[] = "tax_{$taxonomy}_options";
}
// deprecated filter
$list = apply_filters_deprecated( 'acfe/modules/multilang/options', array( $list ), '0.8.8.2', 'acfe/modules/multilang/exclude_options' );
// include filter
$list = apply_filters( 'acfe/modules/multilang/include_options', $list );
// exclude filter
$exclude = apply_filters( 'acfe/modules/multilang/exclude_options', array() );
if ( is_array( $exclude ) && !empty( $exclude ) ) {
foreach ( $list as $i => $option ) {
if ( in_array( $option, $exclude ) ) {
unset( $list[ $i ] );
}
}
$list = array_values( $list );
}
$this->options_pages = $list;
return in_array( $post_id, $this->options_pages );
}
function get_languages( $pluck = '', $type = '', $plugin = '' ) {
// polylang
if ( $this->is_polylang || $plugin === 'polylang' ) {
return $this->polylang_get_languages( $pluck, $type );
// wpml
} elseif ( $this->is_wpml || $plugin === 'wpml' ) {
return $this->wpml_get_languages( $pluck, $type );
}
return array();
}
function polylang_get_languages( $pluck = '', $type = 'all' ) {
// vars
$languages = array();
switch ( $type ) {
// active
case 'active': {
// convert pluck
$pluck = $pluck === 'code' ? 'slug' : $pluck;
// https://polylang.wordpress.com/documentation/documentation-for-developers/functions-reference/
$languages = pll_languages_list( array(
'hide_empty' => false,
'fields' => $pluck,
) );
return $languages;
}
// all
case '':
case 'all': {
$languages = \PLL_Settings::get_predefined_languages();
if ( $pluck ) {
$languages = wp_list_pluck( $languages, $pluck, true );
}
return $languages;
}
}
return $languages;
}
function wpml_get_languages( $pluck = '', $type = 'all' ) {
// vars
$languages = array();
$pluck = $pluck === 'locale' ? 'default_locale' : $pluck;
switch ( $type ) {
// active
case 'active': {
// https://wpml.org/wpml-hook/wpml_active_languages/
$languages = apply_filters( 'wpml_active_languages', null, array( 'skip_missing' => 0 ) );
// Set locale as key
$_languages = $languages;
$languages = array();
foreach ( $_languages as $lang ) {
$languages[ $lang['default_locale'] ] = $lang;
}
if ( $pluck ) {
$languages = wp_list_pluck( $languages, $pluck, true );
}
return $languages;
}
// all
case '':
case 'all': {
// https://wpml.org/wpml-hook/wpml_active_languages/
$languages = apply_filters( 'wpml_active_languages', null, array( 'skip_missing' => 0 ) );
$languages = wp_list_pluck( $languages, 'code', 'default_locale' );
// Default Languages
$_languages = icl_get_languages_locales();
$_languages = array_flip( $_languages );
if ( !empty( $_languages ) ) {
$languages = array_merge( $languages, $_languages );
$languages = array_unique( $languages );
}
if ( $pluck ) {
$languages = $pluck === 'code' ? array_values( $_languages ) : array_keys( $_languages );
}
return $languages;
}
}
return $languages;
}
}