Links between class rails - ruby-on-rails

Question

I'm new to rails and in my project I have 2 classes who have a relationship betwen them. The problem is they dont can list services with organs. The following is the code I have:
modelos
class Admin::Organ
include Mongoid::Document
include Mongoid::Search
include Mongoid::Pagination
field :name, type: String
field :address, type: String
field :acronym, type: String
field :phones, type: String
field :emails, type: String
field :image, type: String
field :permalink, type: String
field :schedules, type: Array
field :coordinates, type: Hash
has_many :services, class_name: "Service"
has_many :units, class_name: "Admin::Unit"
before_save :touch_permalink
search_in :name
paginates_per 10
def url
"/orgao/#{permalink}"
end
private
def touch_permalink
self.permalink = self.name.parameterize
end
end
class Service
include Mongoid::Document
include Mongoid::Search
include Mongoid::Pagination
field :name, type: String
field :acronym, type: String
field :popular_names, type: Array
field :description, type: String
field :free, type: Boolean
field :applicants, type: Array
field :estimated_time, type: Hash
field :steps, type: Array
field :permalink, type: String
field :other_informations, type: String
belongs_to :organ, class_name: "Admin::Organ"
has_and_belongs_to_many :units, class_name: "Admin::Unit"
has_and_belongs_to_many :audiences, class_name: "Admin::Audience"
has_and_belongs_to_many :categories, class_name: "Admin::Category"
before_save :touch_permalink
search_in :name, :popular_names
paginates_per 10
def organ_id
read_attribute(:organ_id).to_s
end
def url
"/servico/#{permalink}"
end
private
def touch_permalink
self.permalink = self.name.parameterize
end
end
#controlers
class ServicesController < ApplicationController
def index
#organs = Admin::Organ.all
#services = Service.page(params[:page].to_i).per(3)
end
def show
#service = Service.where(permalink: params[:permalink]).first
end
end
class OrgansController < ApplicationController
def index
#organs = Admin::Organ.page(params[:page]).per(2)
end
def show
#organ = Admin::Organ.where(permalink: params[:permalink]).first
#organs = Admin::Organ.page(params[:page]).per(1)
end
end
#call in index.html
<%= organs.services.name%>
This appears to be returning an error whenever I run it

Answer 1

Note: On mongo relationships when you call a relationship method (such as services in your case) all of the documents associated with it are returned. Also for the pagination plugin you are using (I'm assuming kaminari by the syntax), this will return a collection of documents as well.
If so, it could be expected that you have a view for organs that has something a little like this:
<% #organs.each do |organ| %>
<div>Name: <%= organ.name %></div>
<div>Address: <%= organ.address %></div>
<div>Services:</div>
<% organ.services.each do |service| %>
<div>Name: <%= service.name %></div>
<div>Acronym: <%= service.acronym %></div>
<% end %>
<% end %>
<%= paginate #organs %>
You'll notice that to print out the services you need to first have a handle on the current document within #organs, and then you need to iterate the services within it. If you were to call name (which is a method of a relationship) you will get the relationship name (I believe this is what you are seeing).
I hope this helps. I had to do some guessing between the lines, come back to me if you need any further help.