Undefined method link_to_edit using Draper decorator - ruby-on-rails

Question

I've got a User and Post models, which are related to each other in a classical way -- User has_many :posts and Post belongs_to :user. In my users#show, where I display a user's profile, I also have a list of all posts he has made. Also, I wanted to have links to edit and delete each post respectfully. So, I made up with this:
<% #user.posts.each do |post| %>
<h1><%= link_to post.title, post_path(post) %></h1>
<% if #user == current_user %>
<%= link_to 'Edit', edit_post_path(post) %>
<%= link_to 'Delete', post_path(post), method: :delete %>
<% end %>
<% end %>
But surely placing this logic into view results in a mess, so I decided to use Draper and write decorators for that. As we are going to check rights for posts#edit and posts#delete methods, I came up with a decorator for Post model and tried to use it in PostsController. Here it goes:
class PostDecorator << Draper::Decorator
delegate_all
def link_to_edit
if object.user == current_user
h.link_to 'Edit', h.edit_post_path(object)
end
end
def link_to_delete
if object.user == current.user
h.link_to 'Delete', h.post_path(object), method: :delete
end
end
end
Then, in my PostsController:
# ... class definition
before_action :set_post, only: [:show, :edit, :update, :destroy]
# ... other controller methods
def edit; end
def update
if #post.update(post_params)
#post.save
redirect_to post_path(#post)
else
render 'edit'
end
end
def destroy
#post.destroy
redirect_to feed_path
end
private
# Using FriendlyId gem to have neat slugs
def set_post
#post = Post.friendly.find(params[:id]).decorate
end
But every time I try to render my User profile with list of his posts, with the use of my new helpers <%= post.link_to_delete %> and <%= post.link_to_edit %> instead of that conditional mess, it just returns me the following error:
What am I doing wrong?

Answer 1

You probably figured this out in the meantime but here's an answer for others: You were calling #post = ....decorate in your controller but you are using #user.posts.each { |post| ... } in your view. The objects fed to that block are not decorated. Only #post is.
In your view you should have done something like #user.posts.each { |raw_post| post = raw_post.decorate } and so on. Obviously, with ERB syntax. Or #user.decorated_posts.each ... where
class User < ActiveRecord::Base
...
def decorated_posts
# this will load every post associated with the user.
# if there are a lot of them you might want to only load a limited scope of them
posts.map(&:decorate)
end
...
end