<?php
// Register store.
acf_register_store( 'field-groups' )->prop( 'multisite', true );
/**
* acf_get_field_group
*
* Retrieves a field group for the given identifier.
*
* @date 30/09/13
* @since 5.0.0
*
* @param (int|string) $id The field group ID, key or name.
* @return (array|false) The field group array.
*/
function acf_get_field_group( $id = 0 ) {
// Allow WP_Post to be passed.
if( is_object($id) ) {
$id = $id->ID;
}
// Check store.
$store = acf_get_store( 'field-groups' );
if( $store->has( $id ) ) {
return $store->get( $id );
}
// Check local fields first.
if( acf_is_local_field_group($id) ) {
$field_group = acf_get_local_field_group( $id );
// Then check database.
} else {
$field_group = acf_get_raw_field_group( $id );
}
// Bail early if no field group.
if( !$field_group ) {
return false;
}
// Validate field group.
$field_group = acf_validate_field_group( $field_group );
/**
* Filters the $field_group array after it has been loaded.
*
* @date 12/02/2014
* @since 5.0.0
*
* @param array The field_group array.
*/
$field_group = apply_filters( 'acf/load_field_group', $field_group );
// Store field group using aliasses to also find via key, ID and name.
$store->set( $field_group['key'], $field_group );
$store->alias( $field_group['key'], $field_group['ID'] );
// Return.
return $field_group;
}
/**
* acf_get_raw_field_group
*
* Retrieves raw field group data for the given identifier.
*
* @date 18/1/19
* @since 5.7.10
*
* @param (int|string) $id The field ID, key or name.
* @return (array|false) The field group array.
*/
function acf_get_raw_field_group( $id = 0 ) {
// Get raw field group from database.
$post = acf_get_field_group_post( $id );
if( !$post ) {
return false;
}
// Bail early if incorrect post type.
if( $post->post_type !== 'acf-field-group' ) {
return false;
}
// Unserialize post_content.
$field_group = (array) maybe_unserialize( $post->post_content );
// update attributes
$field_group['ID'] = $post->ID;
$field_group['title'] = $post->post_title;
$field_group['key'] = $post->post_name;
$field_group['menu_order'] = $post->menu_order;
$field_group['active'] = in_array($post->post_status, array('publish', 'auto-draft'));
// Return field.
return $field_group;
}
/**
* acf_get_field_group_post
*
* Retrieves the field group's WP_Post object.
*
* @date 18/1/19
* @since 5.7.10
*
* @param (int|string) $id The field group's ID, key or name.
* @return (array|false) The field group's array.
*/
function acf_get_field_group_post( $id = 0 ) {
// Get post if numeric.
if( is_numeric($id) ) {
return get_post( $id );
// Search posts if is string.
} elseif( is_string($id) ) {
// Try cache.
$cache_key = acf_cache_key( "acf_get_field_group_post:key:$id" );
$post_id = wp_cache_get( $cache_key, 'acf' );
if( $post_id === false ) {
// Query posts.
$posts = get_posts(array(
'posts_per_page' => 1,
'post_type' => 'acf-field-group',
'post_status' => array('publish', 'acf-disabled', 'trash'),
'orderby' => 'menu_order title',
'order' => 'ASC',
'suppress_filters' => false,
'cache_results' => true,
'update_post_meta_cache' => false,
'update_post_term_cache' => false,
'acf_group_key' => $id
));
// Update $post_id with a non false value.
$post_id = $posts ? $posts[0]->ID : 0;
// Update cache.
wp_cache_set( $cache_key, $post_id, 'acf' );
}
// Check $post_id and return the post when possible.
if( $post_id ) {
return get_post( $post_id );
}
}
// Return false by default.
return false;
}
/**
* acf_is_field_group_key
*
* Returns true if the given identifier is a field group key.
*
* @date 6/12/2013
* @since 5.0.0
*
* @param string $id The identifier.
* @return bool
*/
function acf_is_field_group_key( $id = '' ) {
// Check if $id is a string starting with "group_".
if( is_string($id) && substr($id, 0, 6) === 'group_' ) {
return true;
}
/**
* Filters whether the $id is a field group key.
*
* @date 23/1/19
* @since 5.7.10
*
* @param bool $bool The result.
* @param string $id The identifier.
*/
return apply_filters( 'acf/is_field_group_key', false, $id );
}
/**
* acf_validate_field_group
*
* Ensures the given field group is valid.
*
* @date 18/1/19
* @since 5.7.10
*
* @param array $field The field group array.
* @return array
*/
function acf_validate_field_group( $field_group = array() ) {
// Bail early if already valid.
if( is_array($field_group) && !empty($field_group['_valid']) ) {
return $field_group;
}
// Apply defaults.
$field_group = wp_parse_args($field_group, array(
'ID' => 0,
'key' => '',
'title' => '',
'fields' => array(),
'location' => array(),
'menu_order' => 0,
'position' => 'normal',
'style' => 'default',
'label_placement' => 'top',
'instruction_placement' => 'label',
'hide_on_screen' => array(),
'active' => true,
'description' => '',
));
// Convert types.
$field_group['ID'] = (int) $field_group['ID'];
$field_group['menu_order'] = (int) $field_group['menu_order'];
// Field group is now valid.
$field_group['_valid'] = 1;
/**
* Filters the $field_group array to validate settings.
*
* @date 12/02/2014
* @since 5.0.0
*
* @param array $field_group The field group array.
*/
$field_group = apply_filters( 'acf/validate_field_group', $field_group );
// return
return $field_group;
}
/**
* acf_get_valid_field_group
*
* Ensures the given field group is valid.
*
* @date 28/09/13
* @since 5.0.0
*
* @param array $field_group The field group array.
* @return array
*/
function acf_get_valid_field_group( $field_group = false ) {
return acf_validate_field_group( $field_group );
}
/**
* acf_translate_field_group
*
* Translates a field group's settings.
*
* @date 8/03/2016
* @since 5.3.2
*
* @param array $field_group The field group array.
* @return array
*/
function acf_translate_field_group( $field_group = array() ) {
// Get settings.
$l10n = acf_get_setting('l10n');
$l10n_textdomain = acf_get_setting('l10n_textdomain');
// Translate field settings if textdomain is set.
if( $l10n && $l10n_textdomain ) {
$field_group['title'] = acf_translate( $field_group['title'] );
/**
* Filters the $field group array to translate strings.
*
* @date 12/02/2014
* @since 5.0.0
*
* @param array $field_group The field group array.
*/
$field_group = apply_filters( "acf/translate_field_group", $field_group );
}
// Return field.
return $field_group;
}
// Translate field groups passing through validation.
add_action('acf/validate_field_group', 'acf_translate_field_group');
/**
* acf_get_field_groups
*
* Returns and array of field_groups for the given $filter.
*
* @date 30/09/13
* @since 5.0.0
*
* @param array $filter An array of args to filter results by.
* @return array
*/
function acf_get_field_groups( $filter = array() ) {
// Vars.
$field_groups = array();
// Check database.
$raw_field_groups = acf_get_raw_field_groups();
if( $raw_field_groups ) {
foreach( $raw_field_groups as $raw_field_group ) {
$field_groups[] = acf_get_field_group( $raw_field_group['ID'] );
}
}
/**
* Filters the $field_groups array.
*
* @date 12/02/2014
* @since 5.0.0
*
* @param array $field_groups The array of field_groups.
*/
$field_groups = apply_filters( 'acf/load_field_groups', $field_groups );
// Filter results.
if( $filter ) {
return acf_filter_field_groups( $field_groups, $filter );
}
// Return field groups.
return $field_groups;
}
/**
* acf_get_raw_field_groups
*
* Returns and array of raw field_group data.
*
* @date 18/1/19
* @since 5.7.10
*
* @param void
* @return array
*/
function acf_get_raw_field_groups() {
// Try cache.
$cache_key = acf_cache_key( "acf_get_field_group_posts" );
$post_ids = wp_cache_get( $cache_key, 'acf' );
if( $post_ids === false ) {
// Query posts.
$posts = get_posts(array(
'posts_per_page' => -1,
'post_type' => 'acf-field-group',
'orderby' => 'menu_order title',
'order' => 'ASC',
'suppress_filters' => false, // Allow WPML to modify the query
'cache_results' => true,
'update_post_meta_cache' => false,
'update_post_term_cache' => false,
'post_status' => array('publish', 'acf-disabled'),
));
// Update $post_ids with a non false value.
$post_ids = array();
foreach( $posts as $post ) {
$post_ids[] = $post->ID;
}
// Update cache.
wp_cache_set( $cache_key, $post_ids, 'acf' );
}
// Loop over ids and populate array of field groups.
$field_groups = array();
foreach( $post_ids as $post_id ) {
$field_groups[] = acf_get_raw_field_group( $post_id );
}
// Return field groups.
return $field_groups;
}
/**
* acf_filter_field_groups
*
* Returns a filtered aray of field groups based on the given $args.
*
* @date 29/11/2013
* @since 5.0.0
*
* @param array $field_groups An array of field groups.
* @param array $args An array of location args.
* @return array
*/
function acf_filter_field_groups( $field_groups, $args = array() ) {
// Loop over field groups and check visibility.
$filtered = array();
if( $field_groups ) {
foreach( $field_groups as $field_group ) {
if( acf_get_field_group_visibility( $field_group, $args ) ) {
$filtered[] = $field_group;
}
}
}
// Return filtered.
return $filtered;
}
/**
* acf_get_field_group_visibility
*
* Returns true if the given field group's location rules match the given $args.
*
* @date 7/10/13
* @since 5.0.0
*
* @param array $field_groups An array of field groups.
* @param array $args An array of location args.
* @return bool
*/
function acf_get_field_group_visibility( $field_group, $args = array() ) {
// Check if active.
if( !$field_group['active'] ) {
return false;
}
// Check if location rules exist
if( $field_group['location'] ) {
// Get the current screen.
$screen = acf_get_location_screen( $args );
// Loop through location groups.
foreach( $field_group['location'] as $group ) {
// ignore group if no rules.
if( empty($group) ) {
continue;
}
// Loop over rules and determine if all rules match.
$match_group = true;
foreach( $group as $rule ) {
if( !acf_match_location_rule( $rule, $screen, $field_group ) ) {
$match_group = false;
break;
}
}
// If this group matches, show the field group.
if( $match_group ) {
return true;
}
}
}
// Return default.
return false;
}
/**
* acf_update_field_group
*
* Updates a field group in the database.
*
* @date 21/1/19
* @since 5.7.10
*
* @param array $field_group The field group array.
* @return array
*/
function acf_update_field_group( $field_group ) {
// Validate field group.
$field_group = acf_get_valid_field_group( $field_group );
// May have been posted. Remove slashes.
$field_group = wp_unslash( $field_group );
// Parse types (converts string '0' to int 0).
$field_group = acf_parse_types( $field_group );
// Clean up location keys.
if( $field_group['location'] ) {
// Remove empty values and convert to associated array.
$field_group['location'] = array_filter( $field_group['location'] );
$field_group['location'] = array_values( $field_group['location'] );
$field_group['location'] = array_map( 'array_filter', $field_group['location'] );
$field_group['location'] = array_map( 'array_values', $field_group['location'] );
}
// Make a backup of field group data and remove some args.
$_field_group = $field_group;
acf_extract_vars( $_field_group, array( 'ID', 'key', 'title', 'menu_order', 'fields', 'active', '_valid' ) );
// Create array of data to save.
$save = array(
'ID' => $field_group['ID'],
'post_status' => $field_group['active'] ? 'publish' : 'acf-disabled',
'post_type' => 'acf-field-group',
'post_title' => $field_group['title'],
'post_name' => $field_group['key'],
'post_excerpt' => sanitize_title( $field_group['title'] ),
'post_content' => maybe_serialize( $_field_group ),
'menu_order' => $field_group['menu_order'],
'comment_status' => 'closed',
'ping_status' => 'closed',
);
// Unhook wp_targeted_link_rel() filter from WP 5.1 corrupting serialized data.
remove_filter( 'content_save_pre', 'wp_targeted_link_rel' );
// Slash data.
// WP expects all data to be slashed and will unslash it (fixes '\' character issues).
$save = wp_slash( $save );
// Update or Insert.
if( $field_group['ID'] ) {
wp_update_post( $save );
} else {
$field_group['ID'] = wp_insert_post( $save );
}
// Flush field group cache.
acf_flush_field_group_cache( $field_group );
/**
* Fires immediately after a field group has been updated.
*
* @date 12/02/2014
* @since 5.0.0
*
* @param array $field_group The field group array.
*/
do_action( 'acf/update_field_group', $field_group );
// Return field group.
return $field_group;
}
/**
* _acf_apply_unique_field_group_slug
*
* Allows full control over 'acf-field-group' slugs.
*
* @date 21/1/19
* @since 5.7.10
*
* @param string $slug The post slug.
* @param int $post_ID Post ID.
* @param string $post_status The post status.
* @param string $post_type Post type.
* @param int $post_parent Post parent ID
* @param string $original_slug The original post slug.
*/
function _acf_apply_unique_field_group_slug( $slug, $post_ID, $post_status, $post_type, $post_parent, $original_slug ) {
// Check post type and reset to original value.
if( $post_type === 'acf-field-group' ) {
return $original_slug;
}
// Return slug.
return $slug;
}
// Hook into filter.
add_filter( 'wp_unique_post_slug', '_acf_apply_unique_field_group_slug', 999, 6 );
/**
* acf_flush_field_group_cache
*
* Deletes all caches for this field group.
*
* @date 22/1/19
* @since 5.7.10
*
* @param array $field_group The field group array.
* @return void
*/
function acf_flush_field_group_cache( $field_group ) {
// Delete stored data.
acf_get_store( 'field-groups' )->remove( $field_group['key'] );
// Flush cached post_id for this field group's key.
wp_cache_delete( acf_cache_key( "acf_get_field_group_post:key:{$field_group['key']}" ), 'acf' );
// Flush cached array of post_ids for collection of field groups.
wp_cache_delete( acf_cache_key( "acf_get_field_group_posts" ), 'acf' );
}
/**
* acf_delete_field_group
*
* Deletes a field group from the database.
*
* @date 21/1/19
* @since 5.7.10
*
* @param (int|string) $id The field group ID, key or name.
* @return bool True if field group was deleted.
*/
function acf_delete_field_group( $id = 0 ) {
// Disable filters to ensure ACF loads data from DB.
acf_disable_filters();
// Get the field_group.
$field_group = acf_get_field_group( $id );
// Bail early if field group was not found.
if( !$field_group || !$field_group['ID'] ) {
return false;
}
// Delete fields.
$fields = acf_get_fields( $field_group );
if( $fields ) {
foreach( $fields as $field ) {
acf_delete_field( $field['ID'] );
}
}
// Delete post.
wp_delete_post( $field_group['ID'], true );
// Flush field group cache.
acf_flush_field_group_cache( $field_group );
/**
* Fires immediately after a field group has been deleted.
*
* @date 12/02/2014
* @since 5.0.0
*
* @param array $field_group The field group array.
*/
do_action( 'acf/delete_field_group', $field_group );
// Return true.
return true;
}
/**
* acf_trash_field_group
*
* Trashes a field group from the database.
*
* @date 2/10/13
* @since 5.0.0
*
* @param (int|string) $id The field group ID, key or name.
* @return bool True if field group was trashed.
*/
function acf_trash_field_group( $id = 0 ) {
// Disable filters to ensure ACF loads data from DB.
acf_disable_filters();
// Get the field_group.
$field_group = acf_get_field_group( $id );
// Bail early if field_group was not found.
if( !$field_group || !$field_group['ID'] ) {
return false;
}
// Trash fields.
$fields = acf_get_fields( $field_group );
if( $fields ) {
foreach( $fields as $field ) {
acf_trash_field( $field['ID'] );
}
}
// Trash post.
wp_trash_post( $field_group['ID'], true );
// Flush field group cache.
acf_flush_field_group_cache( $field_group );
/**
* Fires immediately after a field_group has been trashed.
*
* @date 12/02/2014
* @since 5.0.0
*
* @param array $field_group The field_group array.
*/
do_action( 'acf/trash_field_group', $field_group );
// Return true.
return true;
}
/**
* acf_untrash_field_group
*
* Restores a field_group from the trash.
*
* @date 2/10/13
* @since 5.0.0
*
* @param (int|string) $id The field_group ID, key or name.
* @return bool True if field_group was trashed.
*/
function acf_untrash_field_group( $id = 0 ) {
// Disable filters to ensure ACF loads data from DB.
acf_disable_filters();
// Get the field_group.
$field_group = acf_get_field_group( $id );
// Bail early if field_group was not found.
if( !$field_group || !$field_group['ID'] ) {
return false;
}
// Untrash fields.
$fields = acf_get_fields( $field_group );
if( $fields ) {
foreach( $fields as $field ) {
acf_untrash_field( $field['ID'] );
}
}
// Untrash post.
wp_untrash_post( $field_group['ID'], true );
// Flush field group cache.
acf_flush_field_group_cache( $field_group );
/**
* Fires immediately after a field_group has been trashed.
*
* @date 12/02/2014
* @since 5.0.0
*
* @param array $field_group The field_group array.
*/
do_action( 'acf/untrash_field_group', $field_group );
// Return true.
return true;
}
/**
* acf_is_field_group
*
* Returns true if the given params match a field group.
*
* @date 21/1/19
* @since 5.7.10
*
* @param array $field_group The field group array.
* @param mixed $id An optional identifier to search for.
* @return bool
*/
function acf_is_field_group( $field_group = false ) {
return (
is_array($field_group)
&& isset($field_group['key'])
&& isset($field_group['title'])
);
}
/**
* acf_duplicate_field_group
*
* Duplicates a field group.
*
* @date 16/06/2014
* @since 5.0.0
*
* @param (int|string) $id The field_group ID, key or name.
* @param int $new_post_id Optional post ID to override.
* @return array The new field group.
*/
function acf_duplicate_field_group( $id = 0, $new_post_id = 0 ){
// Disable filters to ensure ACF loads data from DB.
acf_disable_filters();
// Get the field_group.
$field_group = acf_get_field_group( $id );
// Bail early if field_group was not found.
if( !$field_group || !$field_group['ID'] ) {
return false;
}
// Get fields.
$fields = acf_get_fields( $field_group );
// Update attributes.
$field_group['ID'] = $new_post_id;
$field_group['key'] = uniqid('group_');
// Add (copy) to title when apropriate.
if( !$new_post_id ) {
$field_group['title'] .= ' (' . __("copy", 'acf') . ')';
}
// When importing a new field group, insert a temporary post and set the field group's ID.
// This allows fields to be updated before the field group (field group ID is needed for field parent setting).
if( !$field_group['ID'] ) {
$field_group['ID'] = wp_insert_post( array( 'post_title' => $field_group['key'] ) );
}
// Duplicate fields.
$duplicates = acf_duplicate_fields( $fields, $field_group['ID'] );
// Save field group.
$field_group = acf_update_field_group( $field_group );
/**
* Fires immediately after a field_group has been duplicated.
*
* @date 12/02/2014
* @since 5.0.0
*
* @param array $field_group The field_group array.
*/
do_action( 'acf/duplicate_field_group', $field_group );
// return
return $field_group;
}
/**
* acf_get_field_group_style
*
* Returns the CSS styles generated from field group settings.
*
* @date 20/10/13
* @since 5.0.0
*
* @param array $field_group The field group array.
* @return string.
*/
function acf_get_field_group_style( $field_group ) {
// Vars.
$style = '';
$elements = array(
'permalink' => '#edit-slug-box',
'the_content' => '#postdivrich',
'excerpt' => '#postexcerpt',
'custom_fields' => '#postcustom',
'discussion' => '#commentstatusdiv',
'comments' => '#commentsdiv',
'slug' => '#slugdiv',
'author' => '#authordiv',
'format' => '#formatdiv',
'page_attributes' => '#pageparentdiv',
'featured_image' => '#postimagediv',
'revisions' => '#revisionsdiv',
'categories' => '#categorydiv',
'tags' => '#tagsdiv-post_tag',
'send-trackbacks' => '#trackbacksdiv'
);
// Loop over field group settings and generate list of selectors to hide.
if( is_array($field_group['hide_on_screen']) ) {
$hide = array();
foreach( $field_group['hide_on_screen'] as $k ) {
if( isset($elements[ $k ]) ) {
$id = $elements[ $k ];
$hide[] = $id;
$hide[] = '#screen-meta label[for=' . substr($id, 1) . '-hide]';
}
}
$style = implode(', ', $hide) . ' {display: none;}';
}
/**
* Filters the generated CSS styles.
*
* @date 12/02/2014
* @since 5.0.0
*
* @param string $style The CSS styles.
* @param array $field_group The field group array.
*/
return apply_filters('acf/get_field_group_style', $style, $field_group);
}
/**
* acf_get_field_group_edit_link
*
* Checks if the current user can edit the field group and returns the edit url.
*
* @date 23/9/18
* @since 5.7.7
*
* @param int $post_id The field group ID.
* @return string
*/
function acf_get_field_group_edit_link( $post_id ) {
if( $post_id && acf_current_user_can_admin() ) {
return admin_url('post.php?post=' . $post_id . '&action=edit');
}
return '';
}
/**
* acf_prepare_field_group_for_export
*
* Returns a modified field group ready for export.
*
* @date 11/03/2014
* @since 5.0.0
*
* @param array $field_group The field group array.
* @return array
*/
function acf_prepare_field_group_for_export( $field_group = array() ) {
// Remove args.
acf_extract_vars( $field_group, array( 'ID', 'local', '_valid' ) );
// Prepare fields.
$field_group['fields'] = acf_prepare_fields_for_export( $field_group['fields'] );
/**
* Filters the $field_group array before being returned to the export tool.
*
* @date 12/02/2014
* @since 5.0.0
*
* @param array $field_group The $field group array.
*/
return apply_filters( 'acf/prepare_field_group_for_export', $field_group );
}
/**
* acf_import_field_group
*
* Imports a field group into the databse.
*
* @date 11/03/2014
* @since 5.0.0
*
* @param array $field_group The field group array.
* @return array The new field group.
*/
function acf_import_field_group( $field_group ) {
// Disable filters to ensure data is not modified by local, clone, etc.
$filters = acf_disable_filters();
// Validate field group.
$field_group = acf_get_valid_field_group( $field_group );
// Stores a map of field "key" => "ID".
$ids = array();
// Stores a map of field "parent_key" => "child_count".
$count = array();
// Prepare fields for import.
$fields = acf_prepare_fields_for_import( $field_group['fields'] );
// If the field group has an ID, review and delete stale fields in the databse.
if( $field_group['ID'] ) {
// Load database fields.
$db_fields = acf_get_fields( $field_group );
$db_fields = acf_prepare_fields_for_import( $db_fields );
// Generate map of "index" => "key" data.
$keys = wp_list_pluck( $fields, 'key' );
// Loop over db fields and delete those who don't exist in $new_fields.
foreach( $db_fields as $field ) {
// Add field data to $ids map.
$ids[ $field['key'] ] = $field['ID'];
// Delete field if not in $keys.
if( !in_array($field['key'], $keys) ) {
acf_delete_field( $field['ID'] );
}
}
}
// When importing a new field group, insert a temporary post and set the field group's ID.
// This allows fields to be updated before the field group (field group ID is needed for field parent setting).
if( !$field_group['ID'] ) {
$field_group['ID'] = wp_insert_post( array( 'post_title' => $field_group['key'] ) );
}
// Add field group data to $ids map.
$ids[ $field_group['key'] ] = $field_group['ID'];
// Add count to map.
$count[ $field_group['ID'] ] = 0;
// Loop over and add fields.
if( $fields ) {
foreach( $fields as $field ) {
// Check $ids map for existing ID for this key.
if( isset($ids[ $field['key'] ]) ) {
$field['ID'] = $ids[ $field['key'] ];
}
// Add field group as parent.
if( empty($field['parent']) ) {
$field['parent'] = $field_group['ID'];
// Check $ids map for existing parent
} elseif( isset($ids[ $field['parent'] ]) ) {
$field['parent'] = $ids[ $field['parent'] ];
}
// Add field menu_order.
if( !isset($count[ $field['parent'] ]) ) {
$count[ $field['parent'] ] = 1;
} else {
$count[ $field['parent'] ]++;
}
// Only add menu order if doesn't already exist.
// Allows Flexible Content field to set custom order.
if( !isset($field['menu_order']) ) {
$field['menu_order'] = ($count[ $field['parent'] ] - 1);
}
// Save field.
$field = acf_update_field( $field );
// Add field data to $ids map.
$ids[ $field['key'] ] = $field['ID'];
}
}
// Save field group.
$field_group = acf_update_field_group( $field_group );
// Enable filters again.
acf_enable_filters( $filters );
/**
* Fires immediately after a field_group has been imported.
*
* @date 12/02/2014
* @since 5.0.0
*
* @param array $field_group The field_group array.
*/
do_action( 'acf/import_field_group', $field_group );
// return new field group.
return $field_group;
}