Use barcode to create new order

app/assets/javascripts/orders.js

@@ -2,64 +2,68 @@
 // All this logic will automatically be available in application.js.
 // You can use CoffeeScript in this file: http://coffeescript.org/
 ready = function() {
-  $('.btn-inc').on('click', function() {
-    increment($(this), 1);
-  });
-  $('.btn-dec').on('click', function() {
-    increment($(this), -1);
-  });
-  $('.form_row').each(function(index, row) {
-    updateInput(row, false);
-    $(row).on('input', function() {
-      updateInput(row);
-    });
-  });
-  recalculate();
-};
+  products_ordered = $('#product_search').keyup(function () {
+              var rex = new RegExp($(this).val(), 'i');
+              $('[data-name]').hide();
+              $('[data-name]').filter(function () {
+                              return rex.test($(this).data("name"));
+                          }).show();
+  })
 
-// Validate input, and then update
-updateInput = function(row, useRecalculate) {
-  if (useRecalculate == null) {
-    useRecalculate = true;
+  $('#products_modal').on('hidden.bs.modal', function () {
+    $('#product_search').val('');
+  });
+
+  increment_product = function(product_id) {
+    input = $("#current_order").find(".order_item_wrapper[data-product=" + product_id + "]").find("input[type=number]");
+    $(input).val(parseInt($(input).val()) + 1).change();
   }
-  cell = row.querySelector("input");
-  if (!cell.validity.valid) {
-    if (parseInt(cell.value) > parseInt(cell.max)) {
-      cell.value = parseInt(cell.max);
-    } else {
-      cell.value = 0;
+
+  $("#products_modal button").click(function() {
+    increment_product($(this).data("product"))
+  })
+
+  $("#from_barcode_form").on("ajax:before", function(xhr, settings) {
+    // Stuff you wanna do after sending form
+  }).on("ajax:success", function(data, status, xhr) {
+    if (status != null) {
+      increment_product(status["id"])
     }
+  }).on("ajax:error", function(xhr, status, error) {
+    // Display an error or something, whatever
+  }).on("ajax:complete", function(xhr, status) {
+    $("#from_barcode_form")[0].reset();
+    // Do more stuff
+  })
+
+  $('tr.order_item_wrapper').hide();
+  $('tr.order_item_wrapper').filter(function() {
+    return parseInt($(this).find('[type=number]').val()) > 0;
+  }).show();
+
+  $('tr.order_item_wrapper input[type=number]').change(function() {
+    tr = $(this).closest('tr.order_item_wrapper')
+    $(tr).toggle(parseInt($(this).val()) > 0);
+    $(tr).find("td").last().html(((parseInt($(tr).data("price")) * parseInt($(this).val())) / 100.0).toFixed(2))
+    recalculate();
+  })
+
+  recalculate = function() {
+    /* Total Price */
+    array = $('tr.order_item_wrapper').map(function() {
+      return parseInt($(this).data("price")) * parseInt($(this).find("input[type=number]").val());
+    })
+    sum = 0;
+    array.each(function(i, el) { sum += el; });
+    $("#current_order .total_price").html((sum / 100.0).toFixed(2));
+
+    /* Message when no product has been choosen */
+    $("#current_order #empty").toggle(!($('tr.order_item_wrapper input[type=number]').filter(function() {
+      return parseInt($(this).val()) > 0;
+    }).length));
   }
-  disIfNec(row)
-  if (useRecalculate) {
-    recalculate()
-  }
-};
 
-disIfNec = function(row) {
-  counter = parseInt($(row).find('.row_counter').val())
-  $(row).find('.btn-dec').prop('disabled', counter === 0)
-  $(row).find('.btn-inc').prop('disabled', counter === parseInt($(row).find('.row_counter').attr('max')))
-};
-
-recalculate = function() {
-  sum = 0
-  $('.row_counter').each(function(i, value) { sum += parseInt($(value).val()) * parseInt($(value).data('price')) })
-  return $('#order_price').html((sum / 100.0).toFixed(2))
-};
-
-increment = function(button, n) {
-  row = $(button).closest('.form_row')
-
-  // Fix the counter
-  counter = $(row).find('.row_counter')
-  value = parseInt(counter.val())
-  if (isNaN(value)) {
-    value = 0
-  }
-  counter.val(value + n)
-
-  updateInput(row[0])
+  recalculate();
 }
 
 $(document).ready(ready);

app/assets/stylesheets/orders.css.scss

@@ -2,60 +2,78 @@
 // They will automatically be included in application.css.
 // You can use Sass (SCSS) here: http://sass-lang.com/
 
-.big-form-button {
-  height: 65px;
-  width: 65px;
-}
-
-.form-control.big-form-field {
-  height: 65px;
-  text-align: center;
-}
-
-.form_row_image {
-  height: 100px;
-  width: 100px;
-  margin-left: auto;
-  margin-right: auto;
-  position: relative;
-  img {
-    position: absolute;
-    top: 0;
-    bottom: 0;
-    left: 0;
-    top: 0;
-    margin: auto;
+.barcode-wrapper {
+  font-size: 300%;
+  input {
+    width: 100%;
   }
 }
 
-.form_row input::-webkit-outer-spin-button,
-.form_row input::-webkit-inner-spin-button {
-    -webkit-appearance: none;
-    margin: 0; /* <-- Apparently some margin are still there even though it's hidden */
-}
-
-.form_row .btn-lg {
-  padding: 10px 10px;
-}
-
-.form_row .caption {
-  h4 {
-    position: relative;
-    span {
+#products_modal {
+  .modal-header {
+    h4 {
+      display: inline-block;
+    }
+    input {
+      margin-right: 20px;
+    }
+  }
+  .col-md-2 {
+    margin-bottom: 20px;
+  }
+  button.product {
+    width: 100%;
+    p {
       overflow: hidden;
       text-overflow: ellipsis;
-      max-width: 100%;
-      display: inline-block;
-      padding-right: 50px;
     }
-    small {
-      margin-left: -45px;
-      position: absolute;
-      top: 5px;
+    img {
+      max-width: 100%;
+      margin-left: auto;
+      margin-right: auto;
+      display: block;
     }
   }
 }
 
-#order_price {
-  width: 50px;
+
+#current_order {
+  text-align: left;
+  border: 1px solid;
+  padding: 10px;
+  div.center {
+    margin-bottom: 20px;
+  }
+  .order_item_wrapper {
+    input {
+      border: none;
+      width: auto;
+    }
+  }
+  table {
+    border-top: 1px dashed;
+    border-collapse: separate;
+    margin-bottom: 15px;
+    td:first-child {
+      width: 40px;
+      input {
+        text-align: right;
+        width: 40px;
+      }
+    }
+    tr:last-child td {
+      border-top: 1px dashed;
+      padding-top: 10px;
+      margin-top: 10px;
+    }
+    tr.margin {
+      height: 10px;
+    }
+    td.euro {
+      text-align: right;
+      &::before {
+        content: "€";
+      }
+    }
+  }
 }

app/controllers/orders_controller.rb

@@ -3,10 +3,8 @@ class OrdersController < ApplicationController
   load_and_authorize_resource :order, through: :user, shallow: true
 
   def new
-    products = (@user.products.for_sale.select("products.*", "sum(order_items.count) as count").group(:product_id).order("count desc") | Product.for_sale)
-    products.each do |p|
-      @order.order_items.build(product: p)
-    end
+    @products = Product.all.for_sale.order(:name)
+    @order.products << @products
   end
 
   def create
@@ -14,6 +12,7 @@ class OrdersController < ApplicationController
       flash[:success] = "#{@order.to_sentence} ordered. Enjoy it!"
       redirect_to root_path
     else
+      @products = Product.all.for_sale.order(:name)
       render 'new'
     end
   end

app/controllers/products_controller.rb

@@ -31,9 +31,13 @@ class ProductsController < ApplicationController
     respond_with @product
   end
 
+  def from_barcode
+    render json: Product.find_by_barcode(params.require(:barcode))
+  end
+
   private
 
     def product_params
-      params.require(:product).permit(:name, :price, :avatar, :category, :stock, :calories, :deleted)
+      params.require(:product).permit(:name, :price, :avatar, :category, :stock, :calories, :deleted, :barcode)
     end
 end

app/models/ability.rb

@@ -4,6 +4,8 @@ class Ability
   def initialize(user)
     return unless user
 
+    can :from_barcode, Product
+
     if user.admin?
       can :manage, :all
     elsif user.koelkast?

app/models/product.rb

@@ -28,6 +28,7 @@ class Product < ActiveRecord::Base
   validates :price_cents, presence: true, numericality: { only_integer: true, greater_than: 0 }
   validates :stock,       presence: true, numericality: { only_integer: true, greater_than_or_equal_to: 0 }
   validates :calories,    numericality: { only_integer: true, allow_nil: true, greater_than_or_equal_to: 0 }
+  validates :barcode,     presence: true, uniqueness: true
 
   scope :for_sale, -> { where deleted: false }
 

app/models/user.rb

@@ -44,7 +44,19 @@ class User < ActiveRecord::Base
     end
   end
 
-  def debt
-    42.15
+  def balance
+    @balance || begin
+      headers = {
+        "Authorization" => "Token token=#{Rails.application.secrets.tab_api_key}",
+        "Content-type" => "application/json"
+      }
+      result = HTTParty.get(File.join(Rails.application.config.api_url, "users", "#{name}.json"), headers: headers)
+
+      if result.code == 200
+        JSON.parse(result.body)["balance"]
+      else
+        0
+      end
+    end
   end
 end

app/views/layouts/_header.html.haml

@@ -32,6 +32,6 @@
                 %li= link_to "Edit profile", edit_user_path(current_user)
             %li
               %p.navbar-text
-                Balance: #{euro_from_cents(current_user.debt)}
+                Balance: #{euro_from_cents(current_user.balance)}
         .visible-xs.navbar-form
           = render 'layouts/session_button'

app/views/orders/_price.html.haml

@@ -1,7 +0,0 @@
-.col-md-3.form_total
-  %strong Total price
-  .input-group
-    %span.input-group-addon €
-    %span#order_price.input-group-addon
-    %span.input-group-btn
-      = f.submit "Order!", class: "btn btn-primary big-form-button", skip_wrapper: true

app/views/orders/_products_modal.html.haml

@@ -0,0 +1,19 @@
+#products_modal.modal{ tabindex: -1 }
+  .modal-dialog.modal-lg
+    .modal-content
+      .modal-header
+        %button.close{ data: { dismiss: :modal } }
+          %span ×
+        %h4.modal-title Kies een product
+        .col-xs-3.pull-right
+          %input#product_search.form-control{ placeholder: "Search" }
+      .modal-body
+        .container-fluid
+          - @products.each do |product|
+            .col-md-2{ data: { name: product.name } }
+              %button.btn.btn-default.product{ data: { product: product.id, dismiss: :modal } }
+                %p= product.name
+                = image_tag product.avatar(:dagschotel), class: "center"
+      .modal-footer
+        %button.btn.btn-default{ data: { dismiss: :modal } }
+          Close

app/views/orders/new.html.haml

@@ -1,9 +1,43 @@
-%h3
-  Order for #{@user.name}
-.row
-  = f_form_for [@user, @order] do |f|
-    = f.error_messages
-    .col-md-12
-      = f.fields_for :order_items do |op_field|
-        = render op_field.object, f: op_field, product: op_field.object.product
-    = render 'orders/price', f: f
+.center
+  .row
+    .col-md-6.col-md-offset-1.barcode-wrapper
+      %h1 Order for #{@user.name}
+      = form_tag from_barcode_products_path, id: "from_barcode_form", remote: true do
+        %input.center-block{ type: :number, name: :barcode, autofocus: true }
+      = "- OR -"
+      %button.btn.btn-default.center-block{ data: { toggle: :modal, target: "#products_modal" } }
+        Select Product Without Barcode
+    .col-md-4.col-md-offset-1
+      -# Huidige schuld: #{euro_from_cents @user.balance}
+      #current_order
+        .div.center
+          = image_tag "logo.png"
+        = form_for [@user, @order] do |f|
+          %table
+            %tr.margin
+            = f.fields_for :order_items do |ff|
+              %tr.order_item_wrapper{ data: { product: ff.object.product.id, price: ff.object.product.price_cents } }
+                %td
+                  = ff.number_field :count
+                  = ff.fields_for :product do |fff|
+                    / Needed for haml
+                %td
+                  x
+                %td
+                  %span= ff.object.product.name
+                %td.euro
+                  = euro_from_cents(ff.object.product.price_cents * ff.object.count)
+            %tr#empty
+              %td
+                %td
+                  %em Empty Order.
+            %tr.margin
+            %tr
+              %td
+              %td
+              %td.text-right
+                Total:
+              %td.total_price.euro
+          = f.submit "Order!", class: "btn btn-primary form-control"
+= render 'products_modal'
+- p @order.errors

config/routes.rb

@@ -27,7 +27,11 @@ Rails.application.routes.draw do
     end
   end
 
-  resources :products, only: [:new, :create, :index, :edit, :update]
+  resources :products, only: [:new, :create, :index, :edit, :update] do
+    collection do
+      post 'barcode' => 'products#from_barcode', as: :from_barcode
+    end
+  end
   resources :stocks, only: [:new, :create]
 
   get 'overview' => 'orders#overview', as: "orders"

db/migrate/20150919091214_add_barcode_to_products.rb

@@ -0,0 +1,5 @@
+class AddBarcodeToProducts < ActiveRecord::Migration
+  def change
+    add_column :products, :barcode, :string, null: false, default: ""
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20150918190548) do
+ActiveRecord::Schema.define(version: 20150919091214) do
 
   create_table "delayed_jobs", force: :cascade do |t|
     t.integer  "priority",   default: 0, null: false
@@ -60,6 +60,7 @@ ActiveRecord::Schema.define(version: 20150918190548) do
     t.integer  "stock",               default: 0,     null: false
     t.integer  "calories"
     t.boolean  "deleted",             default: false
+    t.string   "barcode",             default: "",    null: false
   end
 
   create_table "users", force: :cascade do |t|

spec/factories/products.rb

@@ -28,6 +28,7 @@ FactoryGirl.define do
     stock       { 30 + rand(30) }
     calories    { rand 20 }
     avatar      { Identicon.data_url_for name }
+    sequence :barcode
 
     factory :invalid_product do
       name nil