Updating Forum_Posts getting routes error

app/views/forum_posts/_forum_post.html.erb

<%= div_for @forum_post do %>

<% end %>

Forum Posts Controller

class ForumThreads::ForumPostsController < ApplicationController
before_action :authenticate_user!
before_action :set_forum_thread

def create
@forum_post = @forum_thread.forum_posts.new forum_post_params
@forum_post.user = current_user

if @forum_post.save
  redirect_to forum_thread_path(@forum_thread, anchor: "forum_post_#{@forum_post.id}"), notice: "Successfully posted!"
else
  redirect_to @forum_thread, alert: "Unable to save your post"
end

end

def edit
@forum_post.user = current_user
@forum_post = ForumPost.find(params[:id])
end

def update
if @forum_post.update(forum_post_params)
redirect_to @forum_thread
else
render 'edit'
end
end

private

def set_forum_thread
  @forum_thread = ForumThread.find(params[:forum_thread_id])
end

def forum_post_params
  params.require(:forum_post).permit(:body)
end

end

Log

ActionView::Template::Error (No route matches {:action=>"edit", :controller=>"forum_threads/forum_posts", :forum_thread_id=># 2:

Try to run rake routes and double check you have the correct route name. And it doesn't look like you allowing the user_id in your strong params. Try changing to:

def forum_post_params
  params.require(:forum_post).permit(:body, :user_id)
end

And I'm not 100% positive but I'm pretty sure you don't have to reset the user in your edit method since you're assigning it when it's created. Might cause an issue if someone other than the original user tries to edit the post.
Hope this helps. :)

I eventually got it working, I just called the controller and passed (@forum_thread, forum_post)