Add stock group order

This allows us to add additional items to an order, which do not belong
a specific user, but will be put into stock. The benefit of this change
is that we use the same order for ordergroups and stock.

app/controllers/group_orders_controller.rb

@@ -12,7 +12,8 @@ class GroupOrdersController < ApplicationController
   end
 
   def new
-    @group_order = @order.group_orders.build(:ordergroup => @ordergroup, :updated_by => current_user)
+    ordergroup = params[:stock_order] ? nil : @ordergroup
+    @group_order = @order.group_orders.build(:ordergroup => ordergroup, :updated_by => current_user)
     @ordering_data = @group_order.load_data
   end
 
@@ -84,10 +85,11 @@ class GroupOrdersController < ApplicationController
   end
 
   def ensure_my_group_order
-    @group_order = @ordergroup.group_orders.find(params[:id])
-  rescue ActiveRecord::RecordNotFound
+    @group_order = GroupOrder.find_by_id(params[:id])
+    if @group_order.ordergroup != @ordergroup && (@group_order.ordergroup || !current_user.role_orders?)
       redirect_to group_orders_url, alert: I18n.t('group_orders.errors.notfound')
     end
+  end
 
   def enough_apples?
     if @ordergroup.not_enough_apples?

app/models/group_order.rb

@@ -10,7 +10,6 @@ class GroupOrder < ActiveRecord::Base
   belongs_to :updated_by, :class_name => "User", :foreign_key => "updated_by_user_id"
 
   validates_presence_of :order_id
-  validates_presence_of :ordergroup_id
   validates_numericality_of :price
   validates_uniqueness_of :ordergroup_id, :scope => :order_id   # order groups can only order once per order
 
@@ -22,7 +21,7 @@ class GroupOrder < ActiveRecord::Base
   # Generate some data for the javascript methods in ordering view
   def load_data
     data = {}
-    data[:available_funds] = ordergroup.get_available_funds(self)
+    data[:available_funds] = ordergroup.nil? ? BigDecimal.new('+Infinity') : ordergroup.get_available_funds(self)
 
     # load prices and other stuff....
     data[:order_articles] = {}
@@ -87,4 +86,8 @@ class GroupOrder < ActiveRecord::Base
     end
   end
 
+  def ordergroup_name
+    ordergroup ? ordergroup.name : I18n.t('model.group_order.stock_ordergroup_name', :user => updated_by.name)
+  end
+
 end

app/models/order.rb

@@ -31,6 +31,7 @@ class Order < ActiveRecord::Base
   scope :closed, -> { where(state: 'closed').order('ends DESC') }
   scope :stockit, -> { where(supplier_id: 0).order('ends DESC') }
   scope :recent, -> { order('starts DESC').limit(10) }
+  scope :stock_group_order, -> { group_orders.where(ordergroup_id: nil).first }
 
   # Allow separate inputs for date and time
   #   with workaround for https://github.com/einzige/date_time_attribute/issues/14
@@ -125,6 +126,10 @@ class Order < ActiveRecord::Base
     group_orders.where(:ordergroup_id => ordergroup.id).first
   end
 
+  def stock_group_order
+    group_orders.where(:ordergroup_id => nil).first
+  end
+
   # Returns OrderArticles in a nested Array, grouped by category and ordered by article name.
   # The array has the following form:
   # e.g: [["drugs",[teethpaste, toiletpaper]], ["fruits" => [apple, banana, lemon]]]
@@ -234,9 +239,11 @@ class Order < ActiveRecord::Base
 
     transaction do                                        # Start updating account balances
       for group_order in gos
+        if group_order.ordergroup
           price = group_order.price * -1                  # decrease! account balance
           group_order.ordergroup.add_financial_transaction!(price, transaction_note, user)
         end
+      end
 
       if stockit?                                         # Decreases the quantity of stock_articles
         for oa in order_articles.includes(:article)

app/views/orders/show.html.haml

@@ -70,6 +70,10 @@
     - if @order.open?
       = link_to t('.action_end'), finish_order_path(@order), method: :post, class: 'btn btn-success',
         data: {confirm: t('.confirm_end', order: @order.name)}
+      - if @order.stock_group_order
+        = link_to t('.stock_order'), edit_group_order_path(@order.stock_group_order, :order_id => @order.id), class: 'btn'
+      - else
+        = link_to t('.stock_order'), new_group_order_path(:order_id => @order.id, :stock_order => true), class: 'btn'
       = link_to t('ui.edit'), edit_order_path(@order), class: 'btn'
     - elsif not @order.closed? and not @order.stockit?
       = receive_button @order

config/locales/de.yml

@@ -1170,6 +1170,8 @@ de:
   model:
     delivery:
       each_stock_article_must_be_unique: Lieferung darf jeden Lagerartikel höchstens einmal auflisten.
+    group_order:
+      stock_ordergroup_name: Lager (%{user})
     membership:
       no_admin_delete: Mitgliedschaft kann nicht beendet werden. Du bist die letzte Administratorin
     order_article:
@@ -1327,6 +1329,7 @@ de:
       show_invoice: Rechnung anzeigen
       sort_article: Sortiert nach Artikeln
       sort_group: Sortiert nach Gruppen
+      stock_order: Lagerbestellung
       title: 'Bestellung: %{name}'
       warn_not_closed: Achtung, Bestellung wurde noch nicht abgerechnet.
     state:

config/locales/en.yml

@@ -1190,6 +1190,8 @@ en:
   model:
     delivery:
       each_stock_article_must_be_unique: Each stock article must not be listed more than once.
+    group_order:
+      stock_ordergroup_name: Stock (%{user})
     membership:
       no_admin_delete: Membership can not be withdrawn as you are the last administrator.
     order_article:
@@ -1349,6 +1351,7 @@ en:
       show_invoice: Show invoice
       sort_article: Sorted in articles
       sort_group: Sorted in groups
+      stock_order: Stock Order
       title: 'Order: %{name}'
       warn_not_closed: Warning, order is not yet settled.
     state:

db/migrate/20160224201529_allow_stock_group_order.rb

@@ -0,0 +1,9 @@
+class AllowStockGroupOrder < ActiveRecord::Migration
+  def self.up
+    change_column :group_orders, :ordergroup_id, :integer, :default => nil, :null => true
+  end
+
+  def self.down
+    change_column :group_orders, :ordergroup_id, :integer, :default => 0, :null => false
+  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: 20160217194036) do
+ActiveRecord::Schema.define(version: 20160224201529) do
 
   create_table "article_categories", force: :cascade do |t|
     t.string "name",        limit: 255, default: "", null: false
@@ -110,7 +110,7 @@ ActiveRecord::Schema.define(version: 20160217194036) do
   add_index "group_order_articles", ["order_article_id"], name: "index_group_order_articles_on_order_article_id", using: :btree
 
   create_table "group_orders", force: :cascade do |t|
-    t.integer  "ordergroup_id",      limit: 4,                         default: 0, null: false
+    t.integer  "ordergroup_id",      limit: 4
     t.integer  "order_id",           limit: 4,                         default: 0, null: false
     t.decimal  "price",                        precision: 8, scale: 2, default: 0, null: false
     t.integer  "lock_version",       limit: 4,                         default: 0, null: false