[fpc-pascal] JSONRTTI load and save TDateTime issues

[Michael Van Canneyt]

On Thu, 24 Sep 2015, Graeme Geldenhuys wrote:

> Hi,
>
> I'm using the JSONRTTI unit to successfully save an object to a .json
> file. But when loading that file back using TJSONDeStreamer I get a
> conversion error due to the Date/Time format.
>
> Here is the code to handle the TDateTime fields of my object - I store
> them as ISO8601 date/time format.
>
>  js := TJSONStreamer.Create(nil);
>  try
>    js.Options := [jsoDateTimeAsString];
>    js.DateTimeFormat := 'yyyymmdd"T"hhnnss';
>    j := js.ObjectToJSON(ASettings);
>
>
> The problem is, the TJSONDeStreamer doesn't have the equivalent Options
> property or DateTimeFormat property that TJSONStreamer has, so how is it
> supposed to know how to handle Date/Time fields? No wonder it gives a
> Conversion Error.
>
> If I comment out my js.DateTimeFormat line above, then saving and
> loading works. But I don't want the default DateTime-to-String result.
>
> Any ideas?   I'm using FPC 2.6.4.

That's a bug (missing jsoDateTimeAsString in destreamer), 
please report it in the bugtracker.

Michael.