'acf_widget',
'description' => 'Easily create custom widgets using ACF'
);
parent::__construct( 'ACF_Widget', 'ACF Widget', $widget_options );
}
function form( $instance ) {
// Set metabox ids and search for available ACF groups
$this->set_metabox_ids();
$this->set_available_acfs();
// Variables
$group_id = ( $this->acf_group_id === false ) ? esc_attr( $instance['acf_group'] ) : $this->acf_group_id;
$acf_groups = $this->available_acfs;
$widget_id_base = $this->id_base;
$widget_id = $this->number;
$in_widget_title = ( $this->title_field_key !== false ) ? get_field( $this->title_field_key, 'widget_' . $widget_id_base . '_' . $widget_id ) : false;
// Set group metaboxes
$this->set_metaboxes( $widget_id_base, $widget_id );
require( plugin_dir_path( __FILE__ ) . '../partials/acf-widget-html.php' );
}
function update( $new_instance, $old_instance ) {
// Variables
$instance = $old_instance;
$instance['acf_group'] = strip_tags( $new_instance['acf_group'] );
$instance['fields'] = array();
if ( isset( $new_instance['fields'] ) ) {
foreach ( $new_instance['fields'] as $key => $value ) {
$instance['fields'][ $key ] = $value;
update_field( $key, $value, 'widget_' . $this->id_base . '_' . $this->number );
}
}
return $instance;
}
function widget( $args, $instance ) {
$title = apply_filters( 'widget_title', 'hallo', $instance, $this->id_base );
// Variables
$acf_key = 'widget_' . $this->id_base . '_' . $this->number;
// Debug information
echo 'ACF Key:
';
echo $acf_key . '
';
echo '
';
echo 'Fields:
';
echo '';
print_r( $instance['fields'] );
echo '
';
echo '
';
echo 'Use get_field( \'fieldname\', \$acf_key ); to get the fields in the widget function.';
echo '
';
echo '
';
}
function set_metaboxes( $widget_id_base, $widget_id ) {
// Get ACF field groups
$acfs = apply_filters( 'acf/get_field_groups', array() );
if ( $acfs ) {
if ( empty( $this->metabox_ids ) ) {
$this->data['no_fields'] = true;
return false;
}
foreach ( $acfs as $acf ) {
// Get ACF options
$acf['options'] = apply_filters( 'acf/field_group/get_options', array(), $acf['id'] );
// Need to show this ACF field group?
$show = in_array( $acf['id'], $this->metabox_ids ) ? 1 : 0;
if ( ! $show ) {
continue;
}
// Add meta box
add_meta_box(
'acf_' . $acf['id'],
$acf['title'],
array( $this, 'meta_box_input' ),
'acf_widget',
'widget_' . $acf['id'],
'high',
array(
'field_group' => $acf,
'show' => $show,
'post_id' => 'widget_' . $widget_id_base . '_' . $widget_id
)
);
}
}
}
function meta_box_input( $post, $args ) {
// Additional variables
$options = $args['args'];
echo '';
$fields = apply_filters( 'acf/field_group/get_fields', array(), $options['field_group']['id'] );
do_action( 'acf/create_fields', $fields, $options['post_id'] );
}
function set_available_acfs() {
// Get ACF field groups
$acfs = apply_filters( 'acf/get_field_groups', array() );
if ( $acfs ) {
foreach ( $acfs as $acf ) {
// Get ACF options
$acf['options'] = apply_filters( 'acf/field_group/get_options', array(), $acf['id'] );
// Need to show this ACF field group?
$show = in_array( $acf['id'], $this->metabox_ids ) ? 1 : 0;
if ( ! $show) {
continue;
}
if ( ! isset( $this->available_acfs[ $acf['id'] ] ) ) {
$this->available_acfs[ $acf['id'] ] = array(
'id' => $acf['id'],
'title' => $acf['title']
);
}
}
}
}
function set_metabox_ids( $metabox_id = false ) {
// Get ACF field groups
$acfs = apply_filters( 'acf/get_field_groups', array() );
if ( $acfs ) {
// Variables
$metabox_ids = array();
foreach ( $acfs as $acf ) {
// Get ACF location
$locations = apply_filters( 'acf/field_group/get_location', array(), $acf['id'] );
foreach ( $locations as $location ) {
if ( $location[0]['param'] == 'widget' ) {
$metabox_ids[] = $acf['id'];
}
}
}
$this->metabox_ids = $metabox_ids;
}
}
}