How to apply specific conversion rule on a field

[hantsy]

We received a csv from our partner and we need to parse the file. But we found there is an issue in this file, there are different formats for the date fields.

After reading the csv file, and use convert or parse to convert the field to a LocalDate.

DataFrame.readCSV(...)
  .convertTo<MyData>{
     parser{ LocalDate.parse(it, dateTimeFormatter)}
     convert{}
  }
  .toList

The MyData is @DataSchema data class.

But here parser and convert are applied to all fields, how to bind to a specific field(defined by @ColumnName)?

[koperagen]

As something that 100% should work, I suggest

DataFrame.readCSV(...).convert { "fieldName"<String>() }.with { LocalDate.parse(it, dateTimeFormatter) }.convertTo<MyData>()