XchainModel.fromMap constructor Null safety

XchainModel.fromMap(
  1. Map<String, dynamic> map
)

Builds a XchainModel from a map.

It is used mainly for retrieving data from XchainRepository. The map strucure is

  Map<String, dynamic> map = {
    XchainRepository.columnAddress : String,
    XchainRepository.columnPublicKey : Uint8List
    XchainRepository.columnLastBlock : Uint8List?
   }

Implementation

XchainModel.fromMap(Map<String, dynamic> map)
    : address = map[XchainRepository.columnAddress],
      publicKey = map[XchainRepository.columnPublicKey],
      lastBlock = map[XchainRepository.columnLastBlock];