Hide propertys for serialization/marshalling with the mars framework

[mvanrijnen 130]

Anoyone an idea how to get this done? 

If i have a record/class as a return type for q request, i sometimes want to hide certain properties for the (de)serialization process. 

can not find what to use with the MARS framework for this?

 

[Andrea Magni 77]

Hi @mvanrijnen, there is a JSONNameAttribute you can use to tweak serialization (and deserialization).

Just decorate your field with JSONName('') to skip serialization/deserialization.

 

If you need some logic, you can add a special method to your record type and it will be fired by the serialization/deserialization mechanism.

The method should match this signature:  TMyRecord.ToJSONFilter(const AMember: TRttiMember; const AObj: TJSONObject): Boolean;

Just return False and implement your logic in the ToJSONFilter method. It is then up to you to add or not the value of AMember to the AObj that is being serialized.

 

Sincerely,

 

Andrea

[mvanrijnen 130]

1 hour ago, Andrea Magni said:

Hi @mvanrijnen, there is a JSONNameAttribute you can use to tweak serialization (and deserialization).

Just decorate your field with JSONName('') to skip serialization/deserialization.

 

If you need some logic, you can add a special method to your record type and it will be fired by the serialization/deserialization mechanism.

The method should match this signature:  TMyRecord.ToJSONFilter(const AMember: TRttiMember; const AObj: TJSONObject): Boolean;

Just return False and implement your logic in the ToJSONFilter method. It is then up to you to add or not the value of AMember to the AObj that is being serialized.

 

Sincerely,

 

Andrea

Aha, i tried the JSONName before, did not work, but now i found out why, it's in the MARS.Core.JSON.pas, not in the MARS.Core.Attributes.pas

The     function ToJSONFilter(const AMember: TRttiMember; const AObj: TJSONObject): Boolean; works also, thanks!

 

Edited 20 hours ago by mvanrijnen