createTable method Null safety

Future<void> createTable()

Creates the TransactionRepository.table if it does not exist.

Implementation

Future<void> createTable() async {
  _db.execute('''CREATE TABLE IF NOT EXISTS $table (
        $columnId STRING PRIMARY KEY NOT NULL,
        $columnMerkelProof BLOB,
        $columnVersion INTEGER NOT NULL,
        $columnAddress BLOB NOT NULL,
        $columnContents BLOB NOT NULL,
        $columnAssetRef TEXT NOT NULL,
        $columnBlockId TEXT,
        $columnTimestamp INTEGER NOT NULL,
        $columnSignature TEXT NOT NULL
    );
  ''');
}