Is there a way to submit ajax/json requests with simple_form for Rails

Question

With the standard Rails form_for, I was able to pass ajax requests though select and collection_select helpers as such:

<%= address.collection_select :cou         


        

Answer 1

The simplest way to do this that I have found, and for a fuller example, is:

In your view:

<%= simple_form_for :my_object, url: my_objects_path(format: :json), remote: true do |f| %>
  <%= f.error_notification %>
  <%= f.input :an_attribute %>
  <%= f.submit %>
<% end %>

and in your controller:

def create
  @my_object = MyObject.new(my_object_params)
  if @my_object.save
    respond_to do |format|
      format.html { redirect_to @my_object, notice: "Saved" }
      format.json { render json: @my_object, location: my_object_url(@object), status: :created }
    end
  else
    respond_to do |format|
      format.html { render :edit }
      format.json {render json: @my_object, status: :unprocessable_entity }
    end
  end
end

In Rails 5 it's even easier on the controller with the Jbuilder installed to create simple json hashes but this should work there too.