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<?php
class WPCF_Field_DataMapper_Checkboxes extends WPCF_Field_DataMapper_Abstract {
/** @var WPCF_Field_Definition */
protected $field_definition;
/**
* @param WPCF_Field_Definition $field_definition Must be a definition of a checkboxes field.
*/
public function __construct( $field_definition ) {
parent::__construct( $field_definition );
if( $field_definition->get_type()->get_slug() != Types_Field_Type_Definition_Factory::CHECKBOXES ) {
throw new InvalidArgumentException( 'Wrong field definition type.' );
}
}
/**
* Theoretically this should be placed in self::post_to_intermediate(), but toolset-forms & legacy code
* might expect the POST data instead what I think should be the intermediate format.
*
* First of all, $value is expected to be an array. If checkbox is checked, an element with its id as key and value
* will be present. In that case it will be stored in the same way. If it's not checked, we either store nothing
* or a zero, depending on the field definition setting "Save empty value".
*
* @param array|mixed $value
*
* @return array
*/
public function intermediate_to_database( $value ) {
$options = $this->field_definition->get_field_options();
$result = array();
foreach ( $options as $option_id => $ignored ) {
$option_is_checked = isset( $value[ $option_id ] );
if ( $option_is_checked ) {
$result[ $option_id ] = $value[ $option_id ];
} else if ( $this->field_definition->get_should_save_empty_value() ) {
$result[ $option_id ] = 0;
}
}
return $result;
}
}