First in the routes file (config/routes.rb), add these routes:

get '/destinations/:id/edit' => 'destinations#edit', as: :edit_destination 
patch '/destinations/:id' => 'destinations#update' 

Then in the Destinations controller below the show action, add an edit action:

def edit 
  @destination = Destination.find(params[:id]) 
end

Below the edit action, add a private method named destination_params:

private 
  def destination_params 
    params.require(:destination).permit(:name, :description) 
  end 

Between the edit action and the private method, add an update action:

def update 
  @destination = Destination.find(params[:id]) 
  if @destination.update_attributes(destination_params) 
    redirect_to(:action => 'show', :id => @destination.id) 
  else 
    render 'edit' 
  end 
end

In app/views/destinations/edit.html.erb inside <div class="container">...</div>, use form_for to create a form with the fields of the @destination object.

Look back at this exercise on creating a form with fields for an example on how to use form_for.

Finally in app/views/destinations/show.html.erb, use link_to to create a link to the destination’s edit path:

• Use “Edit” for the link text
• By giving the edit route a name of “edit_destination”, Rails automatically creates a helper method named edit_destination_path. Use it to generate a URL to a specific destination’s edit path.

Visit http://localhost:8000/tags/1 in the browser and click on a destination. Then click the Edit button to edit the destination’s name and description.