toJson method
Implementation
@override
Map<String, dynamic> toJson() {
return {
...super.toJson(),
'fieldType': fieldType,
if (fieldName != null) 'fieldName': fieldName,
if (value != null) 'value': value,
if (options != null) 'options': options,
if (readOnly != null) 'readOnly': readOnly,
if (required != null) 'required': required,
if (multiline != null) 'multiline': multiline,
};
}