foodsoft/app/models/order.rb
2013-09-03 12:09:33 +02:00

252 lines
9 KiB
Ruby

# encoding: utf-8
#
class Order < ActiveRecord::Base
# Associations
has_many :order_articles, :dependent => :destroy
has_many :articles, :through => :order_articles
has_many :group_orders, :dependent => :destroy
has_many :ordergroups, :through => :group_orders
has_one :invoice
has_many :comments, :class_name => "OrderComment", :order => "created_at"
has_many :stock_changes
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'
# Validations
validates_presence_of :starts
validate :starts_before_ends, :include_articles
validate :keep_ordered_articles
# Callbacks
after_save :save_order_articles, :update_price_of_group_orders
# Finders
scope :open, where(state: 'open').order('ends DESC')
scope :finished, where("orders.state = 'finished' OR orders.state = 'closed'").order('ends DESC')
scope :finished_not_closed, where(state: 'finished').order('ends DESC')
scope :closed, where(state: 'closed').order('ends DESC')
scope :stockit, where(supplier_id: 0).order('ends DESC')
def stockit?
supplier_id == 0
end
def name
stockit? ? I18n.t('orders.model.stock') : supplier.name
end
def articles_for_ordering
if stockit?
# make sure to include those articles which are no longer available
# but which have already been ordered in this stock order
StockArticle.available.all(:include => :article_category,
:order => 'article_categories.name, articles.name').reject{ |a|
a.quantity_available <= 0 and not a.ordered_in_order?(self)
}.group_by { |a| a.article_category.name }
else
supplier.articles.available.all.group_by { |a| a.article_category.name }
end
end
# Save ids, and create/delete order_articles after successfully saved the order
def article_ids=(ids)
@article_ids = ids
end
def article_ids
@article_ids ||= order_articles.map { |a| a.article_id.to_s }
end
def open?
state == "open"
end
def finished?
state == "finished"
end
def closed?
state == "closed"
end
def expired?
!ends.nil? && ends < Time.now
end
# search GroupOrder of given Ordergroup
def group_order(ordergroup)
group_orders.where(:ordergroup_id => ordergroup.id).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]]]
def articles_grouped_by_category
@articles_grouped_by_category ||= order_articles.
includes([:article_price, :group_order_articles, :article => :article_category]).
order('articles.name').
group_by { |a| a.article.article_category.name }.
sort { |a, b| a[0] <=> b[0] }
end
def articles_sort_by_category
order_articles.all(:include => [:article], :order => 'articles.name').sort do |a,b|
a.article.article_category.name <=> b.article.article_category.name
end
end
# Returns the defecit/benefit for the foodcoop
# Requires a valid invoice, belonging to this order
#FIXME: Consider order.foodcoop_result
def profit(options = {})
markup = options[:without_markup] || false
if invoice
groups_sum = markup ? sum(:groups_without_markup) : sum(:groups)
groups_sum - invoice.net_amount
end
end
# Returns the all round price of a finished order
# :groups returns the sum of all GroupOrders
# :clear returns the price without tax, deposit and markup
# :gross includes tax and deposit. this amount should be equal to suppliers bill
# :fc, guess what...
def sum(type = :gross)
total = 0
if type == :net || type == :gross || type == :fc
for oa in order_articles.ordered.includes(:article, :article_price)
quantity = oa.units_to_order * oa.price.unit_quantity
case type
when :net
total += quantity * oa.price.price
when :gross
total += quantity * oa.price.gross_price
when :fc
total += quantity * oa.price.fc_price
end
end
elsif type == :groups || type == :groups_without_markup
for go in group_orders.includes(group_order_articles: {order_article: [:article, :article_price]})
for goa in go.group_order_articles
case type
when :groups
total += goa.result * goa.order_article.price.fc_price
when :groups_without_markup
total += goa.result * goa.order_article.price.gross_price
end
end
end
end
total
end
# Finishes this order. This will set the order state to "finish" and the end property to the current time.
# Ignored if the order is already finished.
def finish!(user)
unless finished?
Order.transaction do
# set new order state (needed by notify_order_finished)
update_attributes(:state => 'finished', :ends => Time.now, :updated_by => user)
# Update order_articles. Save the current article_price to keep price consistency
# Also save results for each group_order_result
# Clean up
order_articles.all(:include => :article).each do |oa|
oa.update_attribute(:article_price, oa.article.article_prices.first)
oa.group_order_articles.each do |goa|
goa.save_results!
# Delete no longer required order-history (group_order_article_quantities) and
# TODO: Do we need articles, which aren't ordered? (units_to_order == 0 ?)
#goa.group_order_article_quantities.clear
end
end
# Update GroupOrder prices
group_orders.each(&:update_price!)
# Stats
ordergroups.each(&:update_stats!)
# Notifications
Resque.enqueue(UserNotifier, FoodsoftConfig.scope, 'finished_order', self.id)
end
end
end
# Sets order.status to 'close' and updates all Ordergroup.account_balances
def close!(user)
raise I18n.t('orders.model.error_closed') if closed?
transaction_note = I18n.t('orders.model.notice_close', :name => name,
:ends => ends.strftime(I18n.t('date.formats.default')))
gos = group_orders.all(:include => :ordergroup) # Fetch group_orders
gos.each { |group_order| group_order.update_price! } # Update prices of group_orders
transaction do # Start updating account balances
for group_order in gos
price = group_order.price * -1 # decrease! account balance
group_order.ordergroup.add_financial_transaction!(price, transaction_note, user)
end
if stockit? # Decreases the quantity of stock_articles
for oa in order_articles.all(:include => :article)
oa.update_results! # Update units_to_order of order_article
stock_changes.create! :stock_article => oa.article, :quantity => oa.units_to_order*-1
end
end
self.update_attributes! :state => 'closed', :updated_by => user, :foodcoop_result => profit
end
end
# Close the order directly, without automaticly updating ordergroups account balances
def close_direct!(user)
raise I18n.t('orders.model.error_closed') if closed?
update_attributes! state: 'closed', updated_by: user
end
def articles_to_be_removed_and_ordered
chosen_order_articles = order_articles.find_all_by_article_id(article_ids)
to_be_removed = order_articles - chosen_order_articles
to_be_removed.select { |a| a.quantity > 0 or a.tolerance > 0 }
end
protected
def starts_before_ends
errors.add(:ends, I18n.t('articles.model.error_starts_before_ends')) if (ends && starts && ends <= starts)
end
def include_articles
errors.add(:articles, I18n.t('articles.model.error_nosel')) if article_ids.empty?
end
def keep_ordered_articles
unless articles_to_be_removed_and_ordered.empty?
errors.add(:articles, "Die markierten Artikel wurden in der laufenden Bestellung bereits bestellt. Wenn Du sie hier abwählst, werden alle bestehenden Bestellungen dieses Artikels gelöscht. Bei Lagerbestellungen kann dies je nach Verwendung bedeuten, dass bereits gekaufte Artikel nicht abgerechnet werden!")
end
end
def save_order_articles
# fetch selected articles
articles_list = Article.find(article_ids)
# create new order_articles
(articles_list - articles).each { |article| order_articles.create(:article => article) }
# delete old order_articles
articles.reject { |article| articles_list.include?(article) }.each do |article|
order_articles.detect { |order_article| order_article.article_id == article.id }.destroy
end
end
private
# Updates the "price" attribute of GroupOrders or GroupOrderResults
# This will be either the maximum value of a current order or the actual order value of a finished order.
def update_price_of_group_orders
group_orders.each { |group_order| group_order.update_price! }
end
end