error messages

[JeyKJey]

Hey once more!
I have found as well some error-variables in your index.html.erb. I need to have my error messages(in validation) associated to the 'error' key in your json response
Could you please give me a hint how to use different error-messages and how to build them into a code?

I have tried this thing in a controller but it didnt work.
render json: {error: @upload.errors.full_messages}, status: :unprocessable_entity
render json: {error: @upload.errors.full_messages}, status: 422
I guess I need to change a javascript in index.html.erb

Thanks

[kaipei]

I have the same question. Any one could provide any answer? Very appreciated!