Fix multi-cart association and add some temporary multi-cart support into the current front end.

app/assets/javascripts/store/controllers/cart.js.coffee

@@ -3,8 +3,14 @@
 angular.module('store', ['ngResource']).
   controller 'CartCtrl', ($scope, $window, CartFactory) ->
 
-    $scope.loadCart = ->
-      $scope.cart = CartFactory.load(1)
+    $scope.state = 'Empty'
+
+    $scope.loadCart = (cart_id) ->
+      if cart_id?
+        CartFactory.load cart_id, (cart) ->
+          $scope.cart = cart
+          if $scope.cart?.orders?.length > 0
+            $scope.state = "There's something there...."
 
     $scope.addVariant = (variant, quantity) ->
 

app/controllers/spree/orders_controller_decorator.rb

@@ -6,6 +6,10 @@ Spree::OrdersController.class_eval do
 
   # Patch Orders#populate to provide distributor_id and order_cycle_id to OrderPopulator
   def populate
+    if OpenFoodWeb::FeatureToggle.enabled? :multi_cart
+      populate_cart params[:variants]
+    end
+
     populator = Spree::OrderPopulator.new(current_order(true), current_currency)
     if populator.populate(params.slice(:products, :variants, :quantity, :distributor_id, :order_cycle_id))
       fire_event('spree.cart.add')
@@ -76,4 +80,19 @@ Spree::OrdersController.class_eval do
       end
     end
   end
+
+  def populate_cart variants
+    if spree_current_user
+      unless spree_current_user.cart
+        spree_current_user.build_cart
+        cart = Cart.create(user: spree_current_user)
+        spree_current_user.cart = cart
+        spree_current_user.save
+      end
+      variants.each do |variant_id, quantity|
+        variant = Spree::Variant.find(variant_id)
+        spree_current_user.cart.add_variant variant, quantity
+      end
+    end
+  end
 end

app/models/spree/user_decorator.rb

@@ -1,6 +1,7 @@
 Spree.user_class.class_eval do
   has_many :enterprise_roles, :dependent => :destroy
   has_many :enterprises, through: :enterprise_roles
+  has_one :cart
 
   accepts_nested_attributes_for :enterprise_roles, :allow_destroy => true
 

app/views/open_food_web/cart/_show.html.haml

@@ -1,8 +1,8 @@
 / %script = Spree.api_key = raw(try_spree_current_user.try(:spree_api_key).to_s.inspect)
 
 Hello
-%div{ 'ng-app' => 'store', 'ng-controller' => 'CartCtrl', 'ng-init' => "loadCart();" }
-  {{cart}}
+%div{ 'ng-app' => 'store', 'ng-controller' => 'CartCtrl', 'ng-init' => "loadCart(#{try_spree_current_user.andand.cart.andand.id});" }
+  {{cart}} {{state}}
   %ul
     %li(ng-repeat="order in cart.orders")
       {{order.distributor}}