Class: Deb::Item

Inherits:

ActiveRecord::Base

• Object
• ActiveRecord::Base
• Deb::Item

Defined in:

app/models/deb/item.rb

Instance Method Summary

• #op_sign ⇒ Object
• #positive_amount ⇒ Object
• #update_balances ⇒ Object

Instance Method Details

#op_sign ⇒ Object

# File 'app/models/deb/item.rb', line 27

def op_sign
  "debit" == kind ? -1 : 1
end

#positive_amount ⇒ Object

# File 'app/models/deb/item.rb', line 13

def positive_amount
  errors.add(:amount, "should be positive") unless amount > 0
end

#update_balances ⇒ Object

# File 'app/models/deb/item.rb', line 17

def update_balances
  return if @balances_updated
  @balances_updated = true
  self.balance_before = account.current_balance
  self.balance_after = account.current_balance + op_sign * amount
  save!
  account.current_balance = balance_after
  account.save!
end