title: Friendl_id record not found
body: <p>I just add friendly_id to beautify my urls.</p>
  
  <p><strong>i get an error</strong> </p>
  
  <pre><code>      Couldn't find User with 'id'={:id=&gt;"foo"}
  </code></pre>
  
  <p>Here is my setup</p>
  
  <p>User.rb  </p>
  
  <pre><code>class User &lt; ApplicationRecord
  
   extend FriendlyId
   friendly_id :last_name, use: %i[slugged finders]
  </code></pre>
  
  <p>Users_controller.rb</p>
  
  <pre><code>def find_user
    @user = User.friendly.find(id: params[:id])
  end
  </code></pre>
  
  <p>I added this to my user table</p>
  
  <pre><code>add_column :users, :slug,                   :string
  add_index :users,  :slug,                   unique: true
  </code></pre>
  
  <p>And the CreateFriendlyIdSlugs table has been correctly generated</p>
  
  <p>i'm very in trouble with this issue, i'v red all the documentation and i can't see where my code fail</p>
  
  <p>thx for helping</p>