The cache data format has been split between a cache format and a record format
(returned by accessing a field on a record). We have the following converters:
ANY FORMAT
|
| convert_to_cache
v
CACHE FORMAT
|
| convert_to_record
v
RECORD FORMAT
|
| convert_to_read
| convert_to_write
| convert_to_onchange
| convert_to_export
| convert_to_display_name
v
OTHER FORMATS
Modify the API of the converter methods to make them uniform (pass value and
record), and adapt their documentation.