ruby on rails - emberjs assertion failed error -

i trying insert data ember's view getting following error message:

uncaught error: assertion failed: server returned hash key refunds have no mapping 

and here coding can correct it.

my handlebar

<form>    <th>{{view ember.textfield valuebinding="refund_amount" placeholder="enter refund amount"}}</th>    <td><button type="submit" class="btn btn-success complete-btn" {{action saverefund}}>refund</button></td> </form> 

my js model

office.refund = ds.model.extend({     job_id: ds.attr('number'),     customer_id: ds.attr('number'),     amount: ds.attr('number') }); 

my js controller

saverefund: function() {     var refund = office.refund.createrecord({     job_id: this.get('id'),     customer_id: this.get('customer.id'),     amount: this.get('refund_amount')   });     this.get('store').commit();     refund.on('didcreate',function() {     alert('created successfully');   }); } 

here refund_controller.rb

  def index     @refund = thunderbolt::refund.all     respond_to |format|     format.html # index.html.erb     format.json { render json: @refund}     end   end def new     @refund = refund.new     respond_to |format|       format.html # new.html.erb       format.json { render json: @refund }     end   end    def create     refunds = params[:refund]     @refund = refund.new(job_id: refunds[:job_id], customer_id: refunds[:customer_id], amount: refunds[:amount])     respond_to |format|       if @refund.save         format.html { redirect_to @refund, notice: 'refund successful.' }         format.json { render json: @refund, status: :created, location: @refund }       else         format.html { render action: "new" }         format.json { render json: @refund.errors, status: :unprocessable_entity }       end     end   end 

here refund_serializer.rb

  class refundserializer < activemodel::serializer     attributes :id, :job_id, :customer_id, :amount, :created_at, :updated_at   end 

here refund.rb model

  class refund < activerecord::base     attr_accessible :id, :amount, :customer_id, :job_id, :created_at, :updated_at   end 

solved error adding resources :refunds in routes.rb instead of

  "refunds/index"    "refunds/new"    "refunds/edit"    "refunds/show"