displayText method

String? displayText({ String? language, })

The display value as one line of text.

A string is returned as is; a { lang: text } map (a translatable term name) gives the language entry, or the first entry when the language is not set or not present; any other value is its JSON-ish string form. null when the target is missing.

Implementation

String? displayText({String? language}) {
  final value = display;
  if (value == null) return null;
  if (value is String) return value;
  if (value is Map) {
    if (value.isEmpty) return null;
    if (language != null && value[language] != null) {
      return '${value[language]}';
    }
    return '${value.values.first}';
  }
  return '$value';
}