Check for save after update Rails 4

Question

An update method for one of my controllers looks like this:

def update
  @node = Node.find(params[:id])
  @video = @node.media
  @node.update(node_params)
  @video.update(title: @node.name, description: @node.description)
end

I need a callback to make sure that the @node and @video updated. What's the best way to do this?

Answer 1

You can test if the update succeeds...

  if @node.update(node_params)
    # handle success
    if @video.update(title: @node.name, description: @node.description)
      # etc...
    end
  else
    # handle fail
  end

In an ajax request, you can put the condition in the view:

<% if @node.errors.any? %>
  alert('<%= j(@node.errors.full_messages.join("\n")) %>');
<% else %>
  alert('Success')
<% end %>