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<?php
defined( 'ABSPATH' ) || die;
/**
* This class implements common methods used in fields which have multiple values
* like checkbox list, autocomplete, etc.
*
* The difference when handling actions for these fields are the way they get/set
* meta value. Briefly:
* - If field is cloneable, value is saved as a single entry in the database
* - Otherwise value is saved as multiple entries
*/
abstract class RWMB_Multiple_Values_Field extends RWMB_Field {
/**
* Normalize parameters for field.
*
* @param array $field Field parameters.
*
* @return array
*/
public static function normalize( $field ) {
$field = parent::normalize( $field );
$field['multiple'] = true;
$field['field_name'] = $field['id'];
if ( ! $field['clone'] ) {
$field['field_name'] .= '[]';
}
return $field;
}
/**
* Format a single value for the helper functions. Sub-fields should overwrite this method if necessary.
*
* @param array $field Field parameters.
* @param string $value The value.
* @param array $args Additional arguments. Rarely used. See specific fields for details.
* @param int|null $post_id Post ID. null for current post. Optional.
*
* @return string
*/
public static function format_single_value( $field, $value, $args, $post_id ) {
return $field['options'][ $value ];
}
}