The issue is that your post in CommentController#create is nil . Which means, either your params:id that you're providing is incorrect, or it isn't being found in your database. I'd suggest checking the logs to see what params:id contains, and see if that matches what find_by_friendly is expecting.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.