hex function
Utility to encode a blob to allow blob query using
'hex(blob_field) = ?', Sqlite.hex([1,2,3])
Implementation
String hex(List<int> bytes) {
final buffer = StringBuffer();
for (var part in bytes) {
if (part & 0xff != part) {
throw FormatException('$part is not a byte integer');
}
buffer.write('${part < 16 ? '0' : ''}${part.toRadixString(16)}');
}
return buffer.toString().toUpperCase();
}