WP User Manager – Multi-Select Field Values Are Not Translatable in String Translation

Overview of the Issue

When using WP User Manager to add custom fields to profiles, you might experience the following issue: options from multi-select custom fields are not translatable in WPML’s String Translation.

Workaround

Please, make sure of having a full site backup of your site before proceeding.

1. Fix the Integration Plugin (WPUM-WPML)

• Open the …/wp-content/plugins/wpum-wpml/includes/class-wpum-wpml-fields.php file.
• Look for line 20.
• Replace:

  add_action( 'update_wpum_field_meta', array( $this, 'update_meta_strings' ), 10, 4 );

• With:

  add_action( 'updated_wpum_field_meta', array( $this, 'update_meta_strings' ), 10, 4 );

• After that, go to Users → Custom fields, edit at least one of the multi-select field options, then navigate to WPML → String Translation to translate the values.

2. Fix the Front-End Output in WP User Manager

• Open the …/wp-content/plugins/wp-user-manager/includes/fields/types/class-wpum-field-multiselect.php file.
• Look for line 56.
• Replace the entire get_formatted_output() function with:

  public function get_formatted_output( $field, $value ) {
  
      $stored_field_options = $field->get_meta( 'dropdown_options' );
      $stored_options       = array();
      $stored_index         = array();
  
      // Keep the plugin's own guard.
      if ( ! is_array( $stored_field_options ) ) {
          return '';
      }
  
      foreach ( $stored_field_options as $key => $stored_option ) {
          $val                    = isset( $stored_option['value'] ) ? $stored_option['value'] : $key;
          $lbl                    = isset( $stored_option['label'] ) ? $stored_option['label'] : '';
          $stored_options[ $val ] = $lbl;
          $stored_index[ $val ]   = $key;
      }
  
      $values = array();
  
      // Keep the plugin's (array) cast.
      foreach ( (array) $value as $user_stored_value ) {
          if ( ! isset( $stored_options[ $user_stored_value ] ) ) {
              continue;
          }
  
          $label = $stored_options[ $user_stored_value ];
          $index = isset( $stored_index[ $user_stored_value ] ) ? $stored_index[ $user_stored_value ] : 0;
  
          $translated_label = apply_filters(
              'wpml_translate_single_string',
              $label,
              'wpum-fields-wpum-field-' . $field->get_ID(),
              'wpum-field-dropdown_options_' . $index
          );
  
          $values[] = $translated_label;
      }
  
      return implode( ', ', $values );
  }

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