fromJson static method

DocField? fromJson(dynamic value)

Returns a new DocField instance and imports its values from value if it's a Map, null otherwise.

Implementation

// ignore: prefer_constructors_over_static_methods
static DocField? fromJson(dynamic value) {
  if (value is Map) {
    final json = value.cast<String, dynamic>();

    // Ensure that the map contains the required keys.
    // Note 1: the values aren't checked for validity beyond being non-null.
    // Note 2: this code is stripped in release mode!
    assert(() {
      requiredKeys.forEach((key) {
        assert(json.containsKey(key), 'Required key "DocField[$key]" is missing from JSON.');
        assert(json[key] != null, 'Required key "DocField[$key]" has a null value in JSON.');
      });
      return true;
    }());

    return DocField(
      default_: mapValueOfType<String>(json, r'default'),
      fetchFrom: mapValueOfType<String>(json, r'fetchFrom'),
      fieldname: mapValueOfType<String>(json, r'fieldname'),
      fieldtype: mapValueOfType<String>(json, r'fieldtype'),
      hidden: mapValueOfType<bool>(json, r'hidden'),
      inListView: mapValueOfType<bool>(json, r'inListView'),
      label: mapValueOfType<String>(json, r'label'),
      options: mapValueOfType<String>(json, r'options'),
      readOnly: mapValueOfType<bool>(json, r'readOnly'),
      reqd: mapValueOfType<bool>(json, r'reqd'),
      unique: mapValueOfType<bool>(json, r'unique'),
    );
  }
  return null;
}