How to create a delete link for a related object in Ruby on Rails?

Question

So let's say I have Posts and Comments and the url for show is /posts/1/comments/1. I want to create a link to delete that comment in the comments controller destroy method. How do I do that?

Answer 1

<%= link_to 'Destroy', post_comment_path(@post, comment),             data: {:confirm => 'Are you sure?'}, :method => :delete %> 

in comments controller:

  def destroy     @post = Post.find(params[:post_id])     @comment = Comment.find(params[:id])     @comment.destroy      respond_to do |format|       format.html { redirect_to post_comments_path(@post) }       format.xml  { head :ok }     end   end 

Answer 2

Since some time ago, the confirm option has to be included in a data hash, otherwise it will be silently ignored:

<%= link_to 'Destroy',  post_comment_path(@post, comment),     data: { confirm: 'Are you sure?' }, method: :delete %>