# DocumentListBloc constructor Null safety

DocumentListBloc(

1. {FilterDocumentModels? filter,
2. bool? paged,
3. String? orderBy,
4. bool? descending,
5. bool? detailed,
6. EliudQuery? eliudQuery,
7. required DocumentRepository documentRepository,
8. int documentLimit = 5}

)

## Implementation

    DocumentListBloc(
        {this.filter,
        this.paged,
        this.orderBy,
        this.descending,
        this.detailed,
        this.eliudQuery,
        required DocumentRepository documentRepository,
        this.documentLimit = 5})
        : _documentRepository = documentRepository,
          super(DocumentListLoading()) {
      on<LoadDocumentList>((event, emit) {
        if ((detailed == null) || (!detailed!)) {
          _mapLoadDocumentListToState();
        } else {
          _mapLoadDocumentListWithDetailsToState();
        }
      });

      on<NewPage>((event, emit) {
        pages = pages +
            1; // it doesn't matter so much if we increase pages beyond the end
        _mapLoadDocumentListWithDetailsToState();
      });

      on<DocumentChangeQuery>((event, emit) {
        eliudQuery = event.newQuery;
        if ((detailed == null) || (!detailed!)) {
          _mapLoadDocumentListToState();
        } else {
          _mapLoadDocumentListWithDetailsToState();
        }
      });

      on<AddDocumentList>((event, emit) async {
        await _mapAddDocumentListToState(event);
      });

      on<UpdateDocumentList>((event, emit) async {
        await _mapUpdateDocumentListToState(event);
      });

      on<DeleteDocumentList>((event, emit) async {
        await _mapDeleteDocumentListToState(event);
      });

      on<DocumentListUpdated>((event, emit) {
        emit(_mapDocumentListUpdatedToState(event));
      });
    }