delphimvcframework/3_0_0_breaking_changes.md

3.0.0 breaking changes

• RenderListAsProperty<T> has been removed from TMVCController. You can set such kind of specialized serializations in your custom base controller.
• RenderJSONArrayAsProperty has been removed from TMVCController. You can set such kind of specialized serializations in your custom base controller.
• Render has been removed from TMVCController (was deprecated).
• Render(TJSONValue) has been removed from TMVCController (use Render(TObject)).
• Trying to deserialize a TJSONNull the target instance will not be freed anymore (consistency with serialize).
• Context.Request.BodyAsJSONObject dosen't exist any more. Use BodyAs or the following pattern to migrate:

JSON := TJSONObject.ParseJSONValue(Context.Request.Body) as TJSONObject;
try
   if not Assigned(JSON) then
      raise EMVCException.Create('Invalid JSON');
   // do something here
finally
  JSON.Free;
end;

• TMVCConfigKey moved to unit MVCFramework.Commons.
• TMVCMimeType was renamed to TMVCMediaType.
• TMVCController.Render; no parameter method do not exist anymore. If the return is a ResponseStream, use the RenderResponseStream;.
• TMVCController.PushJSONToView; was renamed to PushToViewand Removed SystemJSON dependency, use the ToJSON method if necessary.
• There is no more a default view engine for Server Side Views (before 3.0 there was mustache).
• Mustache engine is no more the only view engine available. Now you can implement all the view engines you need (check the serversideviewsprimer).
• On Linux there is no built-in available view engine available. In other words, using only the built-in classes, you cannot use server side views on linux (dmustache is not compatible on linux).
• HTTP File Upload doesn't work on Linux because of a bug in Delphi 10.2 (https://quality.embarcadero.com/browse/RSP-17216).
• [MapperJSONNaming(TJSONNameCase.JSONNameLowerCase)] now must be changed in [MVCNameCase(ncLowerCase)]
• [MapperJSONNaming(TJSONNameCase.JSONNameUpperCase)] now must be changed in [MVCNameCase(ncUpperCase)]

TRESTClient

Every reference to TJSON* has been removed from the TRESTClient public interface. To port the existing code, you have to include MVCFramework.RESTClient.SystemJSONUtils and change your code as following:

Before lMyJSONObject := Response.BodyAsJsonObject.Clone as TJSONObject; After delphi lMyJSONObject := TSystemJSON.BodyAsJsonObject(Response) as TJSONObject; try //use the object finally lMyJSONObject.Free; end;

The memory allocated for the TJSONValue descendant (e.g. TJSONObject, TJSONArray and so on) is no more managed by the TRESTClient itself but must be feed by the calling code.

• DelphiStompClient has been removed from the core. The following method is no more available in TMVCController.

    function GetNewStompClient(const AClientId: string = ''): IStompClient;