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<?php
/**
* Taxonomy advanced field which saves terms' IDs in the post meta in CSV format.
*
* @package Meta Box
*/
/**
* The taxonomy advanced field class.
*/
class RWMB_Taxonomy_Advanced_Field extends RWMB_Taxonomy_Field {
/**
* Get meta values to save.
* Save terms in custom field in form of comma-separated IDs, no more by setting post terms.
*
* @param mixed $new The submitted meta value.
* @param mixed $old The existing meta value.
* @param int $post_id The post ID.
* @param array $field The field parameters.
*
* @return string
*/
public static function value( $new, $old, $post_id, $field ) {
return implode( ',', array_unique( (array) $new ) );
}
/**
* Save meta value.
*
* @param mixed $new The submitted meta value.
* @param mixed $old The existing meta value.
* @param int $post_id The post ID.
* @param array $field The field parameters.
*/
public static function save( $new, $old, $post_id, $field ) {
if ( empty( $field['id'] ) || ! $field['save_field'] ) {
return;
}
$storage = $field['storage'];
if ( ! $new ) {
$storage->delete( $post_id, $field['id'] );
return;
}
if ( ! $field['clone'] || ! $field['clone_as_multiple'] ) {
$storage->update( $post_id, $field['id'], $new );
return;
}
// clone and clone_as_multiple.
$storage->delete( $post_id, $field['id'] );
foreach ( $new as $value ) {
$storage->add( $post_id, $field['id'], $value );
}
}
/**
* Get raw meta value.
*
* @param int $object_id Object ID.
* @param array $field Field parameters.
* @param array $args Arguments of {@see rwmb_meta()} helper.
*
* @return mixed
*/
public static function raw_meta( $object_id, $field, $args = array() ) {
$args['single'] = true;
$meta = RWMB_Field::raw_meta( $object_id, $field, $args );
if ( empty( $meta ) ) {
return $field['multiple'] ? array() : '';
}
$meta = is_array( $meta ) ? array_map( 'wp_parse_id_list', $meta ) : wp_parse_id_list( $meta );
$meta = array_filter( $meta );
return $meta;
}
/**
* Get the field value.
* Return list of post term objects.
*
* @param array $field Field parameters.
* @param array $args Additional arguments.
* @param int|null $post_id Post ID. null for current post. Optional.
*
* @return array List of post term objects.
*/
public static function get_value( $field, $args = array(), $post_id = null ) {
$value = RWMB_Field::get_value( $field, $args, $post_id );
if ( ! $field['clone'] ) {
$value = self::call( 'terms_info', $field, $value, $args );
} else {
$return = array();
foreach ( $value as $subvalue ) {
$return[] = self::call( 'terms_info', $field, $subvalue, $args );
}
$value = $return;
}
return $value;
}
/**
* Get terms information.
*
* @param array $field Field parameters.
* @param string $term_ids Term IDs, in CSV format.
* @param array $args Additional arguments (for image size).
*
* @return array
*/
public static function terms_info( $field, $term_ids, $args ) {
if ( empty( $term_ids ) ) {
return array();
}
$args = wp_parse_args(
array(
'include' => $term_ids,
'hide_empty' => false,
),
$args
);
$info = get_terms( $field['taxonomy'], $args );
$info = is_array( $info ) ? $info : array();
return $field['multiple'] ? $info : reset( $info );
}
}