Add JsonKey.includeFromJson/includeToJson - allow explicit control of serialization

[kevmoo]

...and deprecate JsonKey.ignore

Fixes https://github.com/google/json_serializable.dart/issues/24 Fixes https://github.com/google/json_serializable.dart/issues/274 Fixes https://github.com/google/json_serializable.dart/issues/537 Fixes https://github.com/google/json_serializable.dart/issues/569 Fixes https://github.com/google/json_serializable.dart/issues/797 Fixes https://github.com/google/json_serializable.dart/issues/1100 Fixes https://github.com/google/json_serializable.dart/issues/1244

[ImadBouirmane]

Useful, I will use it, can I have a simplify description about this new improvement on Json abilities in our codes !

[ValentinVignal]

Is there any reason you use this FieldUsage enum with 4 values instead of 2 boolean parameters (ex: ignoreInFromJson and ignoreInToJson) ?

[kevmoo]

@ValentinVignal great question! It comes down to terseness. I believe it's easier to document and explain...at least a bit. I realize it's the same state-space. Happy to discuss further, though.

[feduke-nukem]

I wonder, how I am able to use these fixes? @kevmoo

[kevmoo]

@feduke-nukem ...what do you mean?

[feduke-nukem]

@feduke-nukem ...what do you mean?

I am not able to find JsonKey.writeOnly and others mentoned here in the latest version of package. Am I misunderstanding something?

[kevmoo]

@feduke-nukem – that's because I haven't published it yet! Ha! Let me see if I can do that today

[feduke-nukem]

@feduke-nukem – that's because I haven't published it yet! Ha! Let me see if I can do that today

That will be really nice 😁

[kevmoo]

@feduke-nukem – that's because I haven't published it yet! Ha! Let me see if I can do that today

That will be really nice 😁

Published!

[feduke-nukem]

@feduke-nukem – that's because I haven't published it yet! Ha! Let me see if I can do that today

That will be really nice 😁

Published!

Thanks!