foodsoft/app/models/order.rb
Patrick Gansterer e7657b987f Update model to support financial transactions #367
This change introduces two new data types to group the financial
transactions. Now every transaction has a "type", which itself belongs
to a "class".
Types should be used add structured information to an transaction, instead
of writing it into the notice textfield. E.g. this could be used to have
different types depending on the source of money (cash vs. bank transfer).
Classes are shown as different columns in the tables and will be uses to
group transactions of specific types. They should be used if not the whole
amount of ordergroup should be used to order food. E.g. if there is a
deposit or membership fee, which is independent of the normal credit.
This will allow us to implement additional features based on classes in
the future. E.g. the sum of transactions in the "membership fee" class
must be positive to allow food orders or show a big warning if it is bellow
a certain value.
2017-12-09 11:51:23 +01:00

338 lines
12 KiB
Ruby

# encoding: utf-8
#
class Order < ActiveRecord::Base
attr_accessor :ignore_warnings
# 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_many :users_ordered, :through => :ordergroups, :source => :users
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'
enum end_action: { no_end_action: 0, auto_close: 1, auto_close_and_send: 2, auto_close_and_send_min_quantity: 3 }
# 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') }
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
include DateTimeAttributeValidate
date_time_attribute :starts, :boxfill, :ends
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.includes(:article_category).
order('article_categories.name', 'articles.name').reject{ |a|
a.quantity_available <= 0 && !a.ordered_in_order?(self)
}.group_by { |a| a.article_category.name }
else
supplier.articles.available.group_by { |a| a.article_category.name }
end
end
def supplier_articles
if stockit?
StockArticle.undeleted.reorder('articles.name')
else
supplier.articles.undeleted.reorder('articles.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
# Returns an array of article ids that lead to a validation error.
def erroneous_article_ids
@erroneous_article_ids ||= []
end
def open?
state == "open"
end
def finished?
state == "finished"
end
def closed?
state == "closed"
end
def boxfill?
FoodsoftConfig[:use_boxfill] && open? && boxfill.present? && boxfill < Time.now
end
def is_boxfill_useful?
FoodsoftConfig[:use_boxfill] && supplier.try(:has_tolerance?)
end
def expired?
ends.present? && ends < Time.now
end
# sets up first guess of dates when initializing a new object
# I guess `def initialize` would work, but it's tricky http://stackoverflow.com/questions/1186400
def init_dates
self.starts ||= Time.now
if FoodsoftConfig[:order_schedule]
# try to be smart when picking a reference day
last = (DateTime.parse(FoodsoftConfig[:order_schedule][:initial]) rescue nil)
last ||= Order.finished.reorder(:starts).first.try(:starts)
last ||= self.starts
# adjust boxfill and end date
self.boxfill ||= FoodsoftDateUtil.next_occurrence last, self.starts, FoodsoftConfig[:order_schedule][:boxfill] if is_boxfill_useful?
self.ends ||= FoodsoftDateUtil.next_occurrence last, self.starts, FoodsoftConfig[:order_schedule][:ends]
end
self
end
# search GroupOrder of given Ordergroup
def group_order(ordergroup)
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]]]
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.includes(: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 * 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.includes(: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 ?)
# A: Yes, we do - for redistributing articles when the number of articles
# delivered changes, and for statistics on popular articles. Records
# with both tolerance and quantity zero can be deleted.
#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, transaction_type = nil)
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.includes(: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
if group_order.ordergroup
price = group_order.price * -1 # decrease! account balance
group_order.ordergroup.add_financial_transaction!(price, transaction_note, user, transaction_type)
end
end
if stockit? # Decreases the quantity of stock_articles
for oa in order_articles.includes(: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?
comments.create(user: user, text: I18n.t('orders.model.close_direct_message')) unless FoodsoftConfig[:charge_members_manually]
update_attributes! state: 'closed', updated_by: user
end
def send_to_supplier!(user)
Mailer.order_result_supplier(user, self).deliver_now
update!(last_sent_mail: Time.now)
end
def do_end_action!
if auto_close?
finish!(created_by)
elsif auto_close_and_send?
finish!(created_by)
send_to_supplier!(created_by)
elsif auto_close_and_send_min_quantity?
finish!(created_by)
send_to_supplier!(created_by) if order.sum >= order.supplier.min_order_quantity
end
end
def self.finish_ended!
orders = Order.where.not(end_action: Order.end_actions[:no_end_action]).where(state: 'open').where('ends <= ?', DateTime.now)
orders.each do |order|
begin
order.do_end_action!
rescue => error
ExceptionNotifier.notify_exception(error, data: {order_id: order.id})
end
end
end
protected
def starts_before_ends
delta = Rails.env.test? ? 1 : 0 # since Rails 4.2 tests appear to have time differences, with this validation failing
errors.add(:ends, I18n.t('orders.model.error_starts_before_ends')) if ends && starts && ends <= (starts-delta)
errors.add(:ends, I18n.t('orders.model.error_boxfill_before_ends')) if ends && boxfill && ends <= (boxfill-delta)
errors.add(:boxfill, I18n.t('orders.model.error_starts_before_boxfill')) if boxfill && starts && boxfill <= (starts-delta)
end
def include_articles
errors.add(:articles, I18n.t('orders.model.error_nosel')) if article_ids.empty?
end
def keep_ordered_articles
chosen_order_articles = order_articles.where(article_id: article_ids)
to_be_removed = order_articles - chosen_order_articles
to_be_removed_but_ordered = to_be_removed.select { |a| a.quantity > 0 || a.tolerance > 0 }
unless to_be_removed_but_ordered.empty? || ignore_warnings
errors.add(:articles, I18n.t(stockit? ? 'orders.model.warning_ordered_stock' : 'orders.model.warning_ordered'))
@erroneous_article_ids = to_be_removed_but_ordered.map { |a| a.article_id }
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