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class Invoice < ActiveRecord::Base
belongs_to :created_operator, :class_name=>"Person"
belongs_to :person
belongs_to :saved_operator, :class_name=>"Person"
belongs_to :created_operator, :class_name=>"Person"
has_many :invoice_item_groups
has_many :invoice_items, :through=>:invoice_item_groups
has_many :activities, :through=>:invoice_item_groups, :source=>:activities
has_many :payments
has_many :comments
before_save :calc_or_not
attr_accessor :speed_save
def activity_summary
activity_titles = self.invoice_items.collect {|ii|
"[#{ii.activity.invoiceprefix}]" if ii.activity
}
activity_titles.delete(nil)
if activity_titles.length > 0
return "#{activity_titles.join(",")}"
else
return ""
end
end
def to_s
"Items: #{self.itemcount} Discount total:#{self.discount_total} Total: #{self.total} Paid: #{self.paid} Credited: #{self.credited} Balance: #{self.balance}"
end
def calc_or_not
unless self.speed_save
self._calc
end
end
def calc()
self._calc
self.save
end
def _calc()
self.itemcount = 0
self.discount_total = 0
self.total = 0
self.paid = 0
self.credited = 0
self.balance = 0
self.invoice_item_groups.each do |g|
if g.invoice_items.length == 0
g.destroy
else
g.calc()
self.itemcount += g.itemcount
self.total += g.total
self.discount_total += g.discount_total
self.credited += g.credited
end
end
if self.fixedtotal and self.fixedtotal > 0
self.total = self.fixedtotal
self.discount_total = 0
self.credited = 0
end
self.payments.each do |p|
self.paid += p.amount if p.apply
end
self.balance = self.total - self.discount_total - self.paid
end
def applyPayment(operator, amount, source, info, cardTransaction=nil)
p = Payment.create(:operator => operator,
:date=>Time.now(),
:person=>self.person,
:amount=>amount,
:source=>source,
:invoice=>self,
:info => info,
:care_transaction =>cardTransaction)
self.paid += amount
self.calc()
return p
end
end
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