getAutoIncrement method
Implementation
Future<int> getAutoIncrement(String fieldName) async {
if (!initialized) throw ArgumentError(C_MUST_INIT);
FieldData fieldDataSelect = FieldData.wee(table_id);
fieldDataSelect.addFieldSql("max($fieldName) as max_id");
RawTableData rawTableData = await select(fieldDataSelect, WhereData());
int? maxId = rawTableData.getRawField(0, 0) as int;
if (maxId == null) return 1;
return maxId + 1;
}