Change relationship of invoices #390

This change will allow us to have invoices for more than one order/delivery
in the future. There are no UI changes for now.

app/controllers/finance/invoices_controller.rb

@@ -1,7 +1,7 @@
 class Finance::InvoicesController < ApplicationController
 
   def index
-    @invoices = Invoice.includes(:supplier, :delivery, :order).order('date DESC').page(params[:page]).per(@per_page)
+    @invoices = Invoice.includes(:supplier, :deliveries, :orders).order('date DESC').page(params[:page]).per(@per_page)
   end
 
   def show
@@ -9,9 +9,9 @@ class Finance::InvoicesController < ApplicationController
   end
 
   def new
-    @invoice = Invoice.new :supplier_id => params[:supplier_id],
-                           :delivery_id => params[:delivery_id],
-                           :order_id => params[:order_id]
+    @invoice = Invoice.new :supplier_id => params[:supplier_id]
+    @invoice.deliveries << Delivery.find_by_id(params[:delivery_id]) if params[:delivery_id]
+    @invoice.orders << Order.find_by_id(params[:order_id]) if params[:order_id]
   end
 
   def edit
@@ -24,9 +24,9 @@ class Finance::InvoicesController < ApplicationController
 
     if @invoice.save
       flash[:notice] = I18n.t('finance.create.notice')
-      if @invoice.order
+      if @invoice.orders.count == 1
         # Redirect to balancing page
-        redirect_to new_finance_order_url(order_id: @invoice.order.id)
+        redirect_to new_finance_order_url(order_id: @invoice.orders.first.id)
       else
         redirect_to [:finance, @invoice]
       end

app/models/delivery.rb

@@ -1,7 +1,7 @@
 class Delivery < ActiveRecord::Base
 
   belongs_to :supplier
-  has_one :invoice
+  belongs_to :invoice
   has_many :stock_changes, -> { includes(:stock_article).order('articles.name ASC') }, :dependent => :destroy
 
   scope :recent, -> { order('created_at DESC').limit(10) }

app/models/invoice.rb

@@ -1,9 +1,9 @@
 class Invoice < ActiveRecord::Base
 
   belongs_to :supplier
-  belongs_to :delivery
-  belongs_to :order
   belongs_to :created_by, :class_name => 'User', :foreign_key => 'created_by_user_id'
+  has_many :deliveries
+  has_many :orders
 
   validates_presence_of :supplier_id
   validates_numericality_of :amount, :deposit, :deposit_credit

app/models/order.rb

@@ -9,9 +9,9 @@ class Order < ActiveRecord::Base
   has_many :group_orders, :dependent => :destroy
   has_many :ordergroups, :through => :group_orders
   has_many :users_ordered, :through => :ordergroups, :source => :users
-  has_one :invoice
   has_many :comments, -> { order('created_at') }, :class_name => "OrderComment"
   has_many :stock_changes
+  belongs_to :invoice
   belongs_to :supplier
   belongs_to :updated_by, :class_name => 'User', :foreign_key => 'updated_by_user_id'
   belongs_to :created_by, :class_name => 'User', :foreign_key => 'created_by_user_id'

app/views/finance/invoices/_form.html.haml

@@ -1,11 +1,11 @@
 = simple_form_for([:finance, @invoice]) do |f|
-  = f.hidden_field :delivery_id
-  = f.hidden_field :order_id
+  = f.association :deliveries, multiple: true, as: :hidden
+  = f.association :orders, multiple: true, as: :hidden
 
-  - if @invoice.delivery
-    %p= t('finance.invoices.linked', what_link: link_to(t('finance.invoices.linked_delivery'), [@invoice.supplier,@invoice.delivery])).html_safe
-  - if @invoice.order
-    %p= t('finance.invoices.linked', what_link: link_to(t('finance.invoices.linked_order'), new_finance_order_path(order_id: @invoice.order.id))).html_safe
+  - if @invoice.deliveries.first
+    %p= t('finance.invoices.linked', what_link: link_to(t('finance.invoices.linked_delivery'), [@invoice.supplier,@invoice.deliveries.first])).html_safe
+  - if @invoice.orders.first
+    %p= t('finance.invoices.linked', what_link: link_to(t('finance.invoices.linked_order'), new_finance_order_path(order_id: @invoice.orders.first.id))).html_safe
 
   - if @invoice.created_at
     = f.input :created_at do

app/views/finance/invoices/_invoices.html.haml

@@ -10,8 +10,8 @@
       %th= heading_helper Invoice, :date
       %th= heading_helper Invoice, :paid_on
       %th= heading_helper Invoice, :amount
-      %th= heading_helper Invoice, :delivery
-      %th= heading_helper Invoice, :order
+      %th= heading_helper Invoice, :deliveries
+      %th= heading_helper Invoice, :orders
       %th= heading_helper Invoice, :note
       %th
       %th
@@ -23,8 +23,14 @@
         %td= link_to h(format_date invoice.date), finance_invoice_path(invoice)
         %td= format_date invoice.paid_on
         %td= number_to_currency invoice.amount
-        %td= link_to Delivery.model_name.human, [invoice.supplier,invoice.delivery] if invoice.delivery
-        %td= link_to format_date(invoice.order.ends), new_finance_order_path(order_id: invoice.order_id) if invoice.order
+        %td><
+          - invoice.deliveries.each_with_index do |delivery, index|
+            = ', ' if index > 0
+            = link_to format_date(delivery.delivered_on), [delivery.supplier,delivery]
+        %td><
+          - invoice.orders.each_with_index do |order, index|
+            = ', ' if index > 0
+            = link_to format_date(order.ends), new_finance_order_path(order_id: order)
         %td= truncate(invoice.note)
         %td= link_to t('ui.edit'), edit_finance_invoice_path(invoice), class: 'btn btn-mini'
         %td= link_to t('ui.delete'), finance_invoice_path(invoice), :data => {:confirm => t('.confirm_delete')}, :method => :delete,

app/views/finance/invoices/show.html.haml

@@ -10,14 +10,20 @@
   %b= heading_helper(Invoice, :supplier) + ':'
   = @invoice.supplier.name
 
-- if @invoice.delivery
+- if @invoice.deliveries.count > 0
   %p
-    %b= heading_helper(Invoice, :delivery) + ':'
-    = t('finance.invoices.linked', what_link: link_to(t('finance.invoices.linked_delivery'), [@invoice.supplier,@invoice.delivery])).html_safe
-- if @invoice.order
+    %b= heading_helper(Invoice, :deliveries) + ':'
+    %span><
+      - @invoice.deliveries.order(:delivered_on).each_with_index do |delivery, index|
+        = ', ' if index > 0
+        = link_to format_date(delivery.delivered_on), [delivery.supplier,delivery]
+- if @invoice.orders.count > 0
   %p
-    %b= heading_helper(Invoice, :order) + ':'
-    = t('finance.invoices.linked', what_link: link_to(t('finance.invoices.linked_order'), @invoice.order)).html_safe
+    %b= heading_helper(Invoice, :orders) + ':'
+    %span><
+      - @invoice.orders.order(:ends).each_with_index do |order, index|
+        = ', ' if index > 0
+        = link_to format_date(order.ends), new_finance_order_path(order_id: order)
 
 %p
   %b= heading_helper(Invoice, :number) + ':'