append method
Implementation
void append(FieldData fieldData, {int? field_table_id}) {
if (fieldData != null) {
List<FieldStruct> list = fieldData._fieldStructList;
list.forEach((FieldStruct fs) {
int fti = field_table_id ?? fs.field_table_id;
set(fs.fieldName, fs.value, field_table_id: fti);
});
}
}