Class: Stock

Inherits:
ActiveRecord::Base
  • Object
show all
Includes:
HasAccounts::Model
Defined in:
app/models/stock.rb

Constant Summary collapse

STATES =

States

['available', 'amortized', 'sold', 'removed']

Instance Method Summary collapse

Instance Method Details

#amount_changes(value_date) ⇒ Object 



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# File 'app/models/stock.rb', line 89

def amount_changes(value_date)
  -(balance(value_date.first) - balance(value_date.last) - write_downs(value_date))
end

#build_booking(params = {}, template_code = nil) ⇒ Object

Build booking

We use the value_date of the purchase invoice but our own amount.



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# File 'app/models/stock.rb', line 68

def build_booking(params = {}, template_code = nil)
  template_code = self.class.to_s.underscore + ':activate'

  # Prepare booking parameters
  booking_params = {:amount => amount}
  if purchase_invoice
    booking_params[:value_date] = purchase_invoice.value_date
  else
    booking_params[:value_date] = Date.today
  end
  booking_params.merge!(params)

  # Build and assign booking
  super(booking_params, template_code)
end

#direct_account ⇒ Object

Guess direct_account

We simply take the first booking and exclude accounts with codes 1100 and 2000 (credit and debit invoices) as candidates.



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# File 'app/models/stock.rb', line 52

def 
  # We don't care if no bookings
  return nil if bookings.empty?

  # Take any booking
  booking = bookings.first
  involved_accounts = [booking., booking.]

   = involved_accounts - [Account.find_by_code("1100"), Account.find_by_code("2000")]

  return .first
end

#to_s(format = :default) ⇒ Object

String



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# File 'app/models/stock.rb', line 10

def to_s(format = :default)
  title
end

#write_downs(value_date) ⇒ Object

Calculations



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# File 'app/models/stock.rb', line 85

def write_downs(value_date)
  bookings.direct_balance(value_date, Account.find_by_code('6900'))
end