how to pass multiple parameter in render action in ruby on rails

Question

my source code is

.modal-body
  =render 'folders/pieces/update', id: @piece , folder_id: @piece.folder_id

It throws an error:

undefined method 'folder_id' for nil:NilClass 

I want to pass two parameters in render page

Answer 1

Your code is valid and correct - it is exactly how you pass multiple params to render.

The error comes from the fact, that @piece is nil .

Answer 2

Your code is absolutely correct for multiple parameters. The error is because you are getting nil value in @piece . You can simply handle nil values as follows: @piece.try(:folder_id)

And your code will look something like:

.modal-body =render 'folders/pieces/update', id: @piece , folder_id: @piece.try(:folder_id)

This will not throw any error in case of nil value.