Question

I’m trying to add comments to a Post model

class Comment < ActiveRecord::Base
    belongs_to :post
    belongs_to :user #should this be has_one :user instead?
....

How do I set up my Comment new and creation actions to get both current_user as well as the current post?

guides.rubyonrails.org suggested

Controller:

def create
    @post = Post.find(params[:post_id])
    @comment = @post.comments.create(params[:comment])
    redirect_to post_path(@post)
end

View

<%= form_for([@post, @post.comments.build]) do |f| %>
...

However this only seems to be aiming to associate with the post and not also the user. How can I set up both associations?

Answer 1

I assume you have a current_user() method somewhere in your controller.

So this should do it:

def create
    @post = Post.find(params[:post_id])
    @comment = @post.comments.build(params[:comment])
    @comment.user = current_user
    @comment.save
    redirect_to post_path(@post)
end