_detail_fields.html.erb

<% if @tipo == "devolucao" %>
	<div class="nested-fields">
		<div  class="row listCod" data-cod="<%= f.object.barcode %>">
			<%= f.input :id, :as => :hidden, input_html: { class: 'id_detail_ror' }  %>
			<div class="small-6 columns show-for-small-only">
			  <%= f.input :barcode, label: "Cod Barras", input_html: { class: 'barcode_ror_dev' } %>
			</div>
			<%= f.input :order_id, :as => :hidden, input_html: { class: 'order_id_ror_dev' } %>
			<%= f.input :preco, :as => :hidden,input_html: { class: 'preco_ror_dev' } %>
			<div class="show-for-medium-up small-2 columns">
				<%= f.input :cod_produto, label: "Produto", input_html: { class: 'cod_produto_ror_dev' } %>
			</div>
			<%= f.input :desc_produto,:as => :hidden, input_html: { class: 'desc_produto_ror_dev' } %>
			<%= f.input :cod_cor,:as => :hidden, input_html: { class: 'cod_cor_ror_dev' } %>
			<div class="small-2 show-for-medium-up columns">
				<%= f.input :desc_cor,label: "Cor", input_html: { class: 'desc_cor_ror_dev' } %>
			</div>
			<div class="small-2 show-for-medium-up columns">
				  <%= f.input :desc_tamanho,label: "Tam", input_html: { class: 'desc_tamanho_ror_dev' } %>
			</div>
			<div class="small-2 columns">
				  <%= f.input :quantidade,label: "Qtd Vend.",input_html: { class: 'qtd_ror_vend' } %>
			</div>

			<div class="small-3 medium-2 columns">
				  <%= f.input :quantidade_dev,label: "Qtd Dev", input_html: { class: 'quantidade_ror_dev', id: f.object.barcode } %>
			</div>

			<div class="show-for-medium-up medium-2 columns end">
				  <%= f.input :total_dev,label: "Total Dev",input_html: { class: 'total_ror_dev' } %>
			</div>
			<div class="small-1 columns end">
				<%= link_to_remove_association "-", f, :class => "button tiny alert remove"%>
			</div>
		</div>
	</div>
<% else %>
	<div class="nested-fields">
		<div class="row">
			<div class="small-6 medium-2 columns leitor">
			<% if !f.object.id.present? %>
   				<form action="#" method="post">
		            <input id = "barcode" class = "cod_barras" type="text" name="cod_barras" value="" />
		        </form>
		    <% end %>
			</div>
			<div class="small-3 medium-3 columns end">
				<% if !f.object.id.present? %>
				<a id='scanBtn' class="button tiny radius success barcode_btn" type="button"
   							onclick="bridgeit.scan('scanBtn', 'onAfterCaptureScan');">Leitor</a>


		    <% end %>
			</div>
			<div class="small-5 columns end not_found">
				<span class="not_found">Produto não existe !   <%= link_to 'Cadastrar ?', new_product_path, :target => "_blank", class: "button radius tiny" %></span>

			</div>
		</div>
	  	<div class="row">
	  	  <%= f.input :id, :as => :hidden, input_html: { class: 'id_detail_ror' }  %>
	  	  <div class="small-6 columns show-for-small-only">
		  	<%= f.input :barcode,label: "Cód Barras" ,input_html: { class: 'barcode_ror' } %>
		  </div>
		  <%= f.input :order_id, :as => :hidden, input_html: { class: 'order_id_ror' } %>
		  <div class="show-for-medium-up small-1 columns">
		  	<%= f.input :cod_produto, label: "Produto", input_html: { class: 'cod_produto_ror' } %>
		  </div>
		  <%= f.input :desc_produto,:as => :hidden, input_html: { class: 'desc_produto_ror' } %>
		  <%= f.input :cod_cor,:as => :hidden, input_html: { class: 'cod_cor_ror' } %>
		  <div class="small-2 show-for-medium-up columns">
		  	<%= f.input :desc_cor,label: "Cor", input_html: { class: 'desc_cor_ror' } %>
		  </div>
		  <div class="small-1 show-for-medium-up columns">
		  	  <%= f.input :desc_tamanho,label: "Tam", input_html: { class: 'desc_tamanho_ror' } %>
		  </div>
		  <div class="small-2 show-for-medium-up columns">
		  	  <%= f.input :preco,label: "Preço",input_html: { class: 'preco_ror' } %>
		  </div>
		  <div class="small-4 medium-1 columns">
		  	<% if !f.object.id.present? %>
		  	  <%= f.input :quantidade,label: "Qtd", input_html: { class: 'quantidade_ror' } %>
		  	<% else %>
		  		<%= f.input :quantidade,label: "Qtd", input_html: { class: 'read_only' } %>
		  	<% end %>
		  </div>
		  <div class="small-3 medium-2 columns">
				  <%= f.input :quantidade_dev,label: "Qtd Dev", input_html: { class: 'quantidade_ror_dev', id: f.object.barcode } %>
			</div>
		  <div class="show-for-medium-up small-2 columns end">
		  	  <%= f.input :total,label: "Total",input_html: { class: 'total_ror' } %>
		  </div>
		  <div class="small-1 columns end">
		  <% if !f.object.id.present? %>
	  		<%= link_to_remove_association "-", f, :class => "button tiny alert"%>
	  	  <% end %>
		  </div>
		  <hr/>
		</div>
	</div>
<% end %>

_form.html.erb

<% if  @tipo == "devolucao" %>
  <%= simple_form_for(@order) do |f| %>
        <%= f.error_notification %>

        <div class="form-inputs">
          <%= f.input :customer_id, :as => :hidden %>
          <%= f.input :tipo, :as => :hidden %>
          <%= f.input :descontado, :as => :hidden %>
          <%= f.input :valor_total, :as => :hidden %>
          <%= f.input :item_total, :as => :hidden %>
          <%= f.input :order_num, :as => :hidden %>
          <br/>
          <div class="row">
              <form action="#" method="post">
                <div class="small-6 medium-3 columns leitor_dev">

                          <input id = "inputCod" type="text"  />

                </div>
                <div class="small-3 medium-3 columns end">
                         <a id='scanBtnDev' class="button tiny radius success scan" type="button"
                onclick="bridgeit.scan('scanBtnDev', 'onAfterCaptureScanDev');">Leitor</a>
                </div>


              </form>
              <div class="small-5 columns end not_found">
                <span class="not_found">Produto não existe neste pedido!</span>
              </div>
          </div>
        <div class="row">
          <div class="small-12 columns">
                <hr/>
                    <div id="details">
                      <%= f.simple_fields_for :details do |detail| %>
                            <%= render "detail_fields",  {:f => detail,:tipo => "devolucao"}%>
                         <% end %>
                    </div>
            <hr/>
          </div>
        </div>
        <div class="row">
          <div class="small-12 columns">
            <div class="form-actions container">
              <%= link_to_add_association '+ ítens', f, :details, data: {"association-insertion-method" => :before, "association-insertion-node" => ".container  " },:class => "button tiny radius add" %>
              <br />
              <br />
              <br />
            </div>
          </div>
        </div>
        <div class="row">
          <div class="small-6 medium-2 columns">
            <%= f.button :submit, "Salvar" %>
          </div>
          <div class="small-6 medium-2 columns end">
            <%= link_to 'Cancelar', orders_path, :class => "button alert"%>

          </div>
        </div>
  <% end %>
<% else %>
  <%= simple_form_for(@order) do |f| %>
    <%= f.error_notification %>
    <div class="form-inputs">
    <% if !browser.device.mobile? %>
      <div class="row">
        <div class="small-4 columns">
          <%= f.association :customer, collection: Customer.order('nome ASC'), label_method: :nome, value_method: :id, include_blank: false, prompt: "Selecione", label: "Cliente:", class: "right inline cliente" %>
        </div>
        <div class="small-3 columns end">
          <%= f.input :tipo,
                     label: "Escolha:",
                    :collection => Order::TIPO,
                     prompt: "Tipo do pedido",
                     include_blank: false %>
        </div>
        <%= f.input :descontado, :as => :hidden %>

      </div>
    <% else %>
      <div class="row collapse">
        <div class="small-12 columns end">
          <%= f.association :customer, collection: Customer.order('nome ASC'), label_method: :nome, value_method: :id, include_blank: false, prompt: "Selecione", label: "Cliente:", class: "right inline cliente" %>
        </div>
      </div>
        <div class="row collapse">
          <div class="small-6 columns end">
            <%= f.input :tipo,
                       label: "Escolha:",
                      :collection => Order::TIPO,
                       prompt: "Tipo do pedido",
                       include_blank: false %>
          </div>
        </div>
        <%= f.input :descontado, :as => :hidden %>


    <% end %>
      <%= f.input :valor_total, :as => :hidden, input_html: { class: 'valor_total_ror' } %>
      <%= f.input :item_total, :as => :hidden, input_html: { class: 'item_total_ror' } %>
      <%= f.input :order_num, :as => :hidden, input_html: { class: 'ordem_num_ror' } %>
    <div class="row">
      <div class="small-12 columns">
            <hr/>
                <div id="details">
                  <%= f.simple_fields_for :details do |detail| %>
                       <%= render "detail_fields",{ :f => detail , :tipo => "edicao"}%>
                     <% end %>
                </div>
      </div>
    </div>
    <div class="row">
      <div class="small-12 columns">
        <div class="form-actions container">
          <%= link_to_add_association '+ ítens', f, :details, data: {"association-insertion-method" => :before, "association-insertion-node" => ".container" },:class => "button tiny radius add_itens" %>
          <br />
          <br />
          <br />
        </div>
      </div>
    </div>
    <div class="row">
      <div class="small-6 medium-2 columns">
        <%= f.button :submit, "Salvar" %>
      </div>
      <div class="small-6 medium-2 columns end">
        <%= link_to 'Cancelar', orders_path, :class => "button alert"%>
      </div>
    </div>
  <% end %>
<% end %>

details_controller.rb

class DetailsController < ApplicationController
    before_action :set_detail, only: [:show, :edit, :update, :destroy]

    # GET /details
    # GET /details.json
    def index
    @details = Detail.select("cod_produto,desc_produto,desc_tamanho,desc_cor,sum (preco) as preco ,sum(quantidade) as quantidade, sum (total) as total,sum(quantidade_dev) as quantidade_dev").group("cod_produto,desc_tamanho,desc_cor").order("cod_produto asc, desc_tamanho asc, desc_cor asc")
    end

    # GET /details/1
    # GET /details/1.json
    def show
    end

    # GET /details/new
    def new
    @detail = Detail.new
    end

    # GET /details/1/edit
    def edit
        # @detail.order(cod_produto: :asc,desc_cor: :asc, desc_tamanho: :asc) ele nao está ordenando. ver depois
    end

    # POST /details
    # POST /details.json
    def create
    @detail = Detail.new(detail_params)

    respond_to do |format|
      if @detail.save
        format.html { redirect_to @detail, notice: 'Detail was successfully created.' }
        format.json { render :show, status: :created, location: @detail }
      else
        format.html { render :new }
        format.json { render json: @detail.errors, status: :unprocessable_entity }
      end
    end
    end

    # PATCH/PUT /details/1
    # PATCH/PUT /details/1.json
    def update
    respond_to do |format|
      if @detail.update(detail_params)
        format.html { redirect_to @detail, notice: 'Detail was successfully updated.' }
        format.json { render :show, status: :ok, location: @detail }
      else
        format.html { render :edit }
        format.json { render json: @detail.errors, status: :unprocessable_entity }
      end
    end
    end

    # DELETE /details/1
    # DELETE /details/1.json
    def destroy
    @detail.destroy
    respond_to do |format|
      format.html { redirect_to details_url, notice: 'Detail was successfully destroyed.' }
      format.json { head :no_content }
    end
    end

    private
    # Use callbacks to share common setup or constraints between actions.
    def set_detail
      @detail = Detail.find(params[:id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def detail_params
      params.require(:detail).permit(:order_id, :cod_produto, :desc_produto, :cod_cor, :desc_cor, :desc_tamanho, :preco, :quantidade,:total,:quantidade_dev,:total_dev,:barcode)
    end
end

order_controller.rb

class OrdersController < ApplicationController
  before_action :set_order, only: [:show, :edit, :update, :destroy, :devolucao]
  require "json"
  require 'net/http'

  def consulta_produto
      @variacao = Variation.find_by(barcode:params[:barcode])
      if @variacao.present?
         hash = {:cod_produto => @variacao.product.cod ,:desc_produto => @variacao.product.descricao,:cod_cor => @variacao.color.cod, :desc_cor => @variacao.color.descricao,:desc_tamanho => @variacao.size.descricao,:preco => @variacao.product.price, :barcode => @variacao.barcode }
         render :json => { :resultado => hash }

      else
        render :json => {:resultado => "error"}
      end

      # sql = "select * from friendly_id_slugs where slug = '" + params[:barcode] + "'"
      # saida = ActiveRecord::Base.connection.execute(sql)
      # render :json => { :existe => saida }
      # render :json => { :existe => Empresa.find_by(apelido:params[:apelido])}
      # render :json => { :existe => Empresa.find_by(apelido:params[:apelido])}
  end
  # GET /orders
  # GET /orders.json
  def index
    @orders = Order.all.order(created_at: :desc, customer_id: :desc)
  end
  # GET /orders/1
  # GET /orders/1.json
  def barcode
    @barcode = params[:barcode]
    render text: 'Thanks for sending a GET request with cURL!' + @barcode
    uri = URI('http://zxing.appspot.com/scan?'+barcode_path)
    req = Net::HTTP.get(uri)
    puts req #show result
  end
  def show
    @detail = Order.find(params[:id])
    # @detail = @order.details.select("cod_produto,desc_produto,desc_tamanho,desc_cor,barcode,sum (preco) as preco ,sum(quantidade) as quantidade, sum (total) as total,sum(quantidade_dev) as quantidade_dev, sum(total_dev) as total_dev").group("barcode").order("cod_produto asc, desc_tamanho asc, desc_cor asc").flatten
    respond_to do |format|
      format.html
      format.pdf do
        pdf = OrderPdf.new(@order,view_context)
        send_data pdf.render,
        filename: "order.pdf",
        type: "application/pdf",
        disposition: "inline"
      end
    end
  end
  # GET /orders/new
  def order_report
    @order = Order.find(params[:id])
    @details = @order.details.select('details.cod_produto as cod_produto, details.desc_produto as desc_produto, details.preco as preco, sum(quantidade) as quantidade, sum(preco) as total').group('cod_produto,desc_produto,preco').order('cod_produto ASC')
    render 'order_report.pdf.thinreports'
  end
  def new
    @order = Order.new
    # @variacoes = Variation.order(:barcode).select(:id,:nome)
    # # ActiveRecord::Base.include_root_in_json = true
    # gon.clientes = @clientes.to_json
  end
  # GET /orders/1/edit
  def edit
    @tipo = params[:tipo]
  end
  def envia_pedido
    @order = Order.find(params[:id])

    EnviaPedido.envia_pedido(@order,current_user).deliver
    flash[:success] = "Pedido enviado com sucesso para o cliente #{@order.customer.nome} !"
    # redirect_to @order
    redirect_to action: :index
  end
  def devolucao
    # @order = Order.find(params[:id])
  end
  # POST /orders
  # POST /orders.json
  def create
    @order = Order.new(order_params)
    respond_to do |format|
      if @order.save
        format.html { redirect_to @order, notice: 'Order was successfully created.' }
        format.json { render :show, status: :created, location: @order }
      else
        format.html { render :new }
        format.json { render json: @order.errors, status: :unprocessable_entity }
      end
    end
  end
  # PATCH/PUT /orders/1
  # PATCH/PUT /orders/1.json
  def update
    respond_to do |format|
      if @order.update(order_params)
        format.html { redirect_to @order, notice: 'Order was successfully updated.' }
        format.json { render :show, status: :ok, location: @order }
      else
        format.html { render :edit }
        format.json { render json: @order.errors, status: :unprocessable_entity }
      end
    end
  end
  # DELETE /orders/1
  # DELETE /orders/1.json
  def destroy
    @order.destroy
    respond_to do |format|
      format.html { redirect_to orders_url, notice: 'Order was successfully destroyed.' }
      format.json { head :no_content }
    end
  end
  private
    # Use callbacks to share common setup or constraints between actions.
    def set_order
      @order = Order.find(params[:id])
    end
    # Never trust parameters from the scary internet, only allow the white list through.
    def order_params
      params.require(:order).permit!
    end
end