Question

I have a one-to-many relationship in my rails application:

• I have a User class that can have many Devices
• I have a Device class that belongs to a User

My Models are designed like this:

class User < ActiveRecord::Base
  has_many :devices
end

class Device < ActiveRecord::Base
  belongs_to :user
end

Regarding views, when I want to display all Users and list their associated Devices I use this code:

<%= user.devices.each do |device| %>
  <%= device.id %>
<% end %>

The output is: (only 1 device right now)

1 #<Device:0x101f45e50>

What I do not understand is why

#<Device:0x101f45e50>

is showing up after the id

Answer 1

replace equal sign

<% user.devices.each do |device| %>
  <%= device.id %>
<% end %>