How to list the users who LIKE a given Post - ruby

Question

I am having trouble figuring out how to list all of the USERS who have LIKED a particular POST. Currently I am using:
<span class="count"><%= dailypost.likes.count %></span>
This has allowed me to count all of the LIKES associated with that particular POST.BUT it does not list the actual users.
I have tried using this to list all of the USERS who LIKED that POST
<%= dailypost.likes %>
Instead I get back:
[#<Like id: 360, dailypost_id: 306, user_id: 1, created_at: "2013-04-28 21:51:45", updated_at: "2013-04-28 21:51:45">,
#<Like id: 319, dailypost_id: 306, user_id: 104, created_at: "2013-04-28 19:27:35", updated_at: "2013-04-28 19:27:35">,
#<Like id: 314, dailypost_id: 306, user_id: 103, created_at: "2013-04-28 19:24:19", updated_at: "2013-04-28 19:24:19">]
DOES ANYONE KNOW HOW I CAN PULL THE LIST OF USERS OR USER_ID'S??
New to RAILS please help!!
MODELS
class User < ActiveRecord::Base
has_many :likes, dependent: :destroy
has_many :dailyposts, dependent: :destroy
end
class Dailypost < ActiveRecord::Base
belongs_to :user
has_many :likes
end
class Like < ActiveRecord::Base
belongs_to :user
belongs_to :dailypost
end
DATABASE
ActiveRecord::Schema.define(:version => 20130210095553) do
create_table "dailyposts", :force => true do |t|
t.string "content"
t.integer "user_id"
t.datetime "created_at", :null => false
t.datetime "updated_at", :null => false
end
create_table "likes", :force => true do |t|
t.integer "dailypost_id"
t.integer "user_id"
t.datetime "created_at", :null => false
t.datetime "updated_at", :null => false
end
create_table "users", :force => true do |t|
t.string "name"
t.string "email"
t.datetime "created_at", :null => false
t.datetime "updated_at", :null => false
end
end
VIEWS
<span class="count"><%= dailypost.likes.count %></span>
<%= dailypost.likes %>
<span class="like">
<% if like = current_user.likes.find_by_dailypost_id(dailypost.id) %>
<%= form_for like, :html => { :method => :delete }, remote: true do |f| %>
<span title="Unlike!"><%= image_submit_tag "Superman1.png" %></span>
<% end %>
<% else %>
<%= form_for current_user.likes.build, remote: true do |f| %>
<div><%= f.hidden_field :dailypost_id, value: dailypost.id %></div>
<%= f.hidden_field :user_id %>
<span title="Like!"><%= image_submit_tag "Superman2.png" %></span>
<% end %>
<% end %>
</span>

Answer 1

The simplest way to understand is to take each like, and ask it for its user:
dailypost.likes.map {|l| l.user}
Of course that does a database lookup for each like, which you may wish to avoid if you have hundreds and hundreds of users.
So a more sophisticated way is to do a single query to get all the users by user_id:
User.find(dailypost.likes.map {|l| l.user_id})
This will give you a list of users, and it's up to you what you do with it. If you just want a HTML list, try this instead:
<ul>
<% dailypost.likes.each do |l| %>
<li> <%= link_to(l.user.name, l.user) %></li>
<% end %>
</ul>
This looks at each like in turn, and then asks it for its user, and then asks the user for its name.