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DelphiMVCFramework 3.0.0 (helium) - Breaking Changes

DelphiMVCFramework 3.0.0 (helium) - Breaking Changes

  • XE6 and previous versions are not more supported.
  • 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;
    
  • TMVCConfigKey.ISAPIPath has been substituted with TMVCConfigKey.PathPrefix and now is applicated to all kind of projects (not only ISAPI);

  • MapperSerializeAsString attribute is now MVCSerializeAsString

  • ContentCharset is no more available (everywhere). You have to properly set ContentType. To do that is available the function CreateContentType.

  • Removed LogEx and LogException. Use Log.ErrorFmt instead.

  • PushObjectToView has been deprecated. Use ViewData property;

  • PushDataSetToView has been deprecated. Use ViewDataSet property;

  • ViewModels has been renamed in ViewModelList;

  • ViewDataSets has been renamed in ViewDatasetList;

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