Class: LineItem

Inherits:
ActiveRecord::Base
  • Object
show all
Defined in:
app/models/line_item.rb

Instance Method Summary collapse

Instance Method Details

#adjust_quantity ⇒ Object 



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# File 'app/models/line_item.rb', line 39

def adjust_quantity    
  self.quantity = 0 if self.quantity.nil? || self.quantity < 0
end

#decrement_quantity ⇒ Object 



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# File 'app/models/line_item.rb', line 30

def decrement_quantity
  self.quantity -= 1
end

#increment_quantity ⇒ Object 



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# File 'app/models/line_item.rb', line 26

def increment_quantity
  self.quantity += 1
end

#total ⇒ Object Also known as: amount 



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# File 'app/models/line_item.rb', line 34

def total
  self.price * self.quantity  
end

#validate ⇒ Object 



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# File 'app/models/line_item.rb', line 14

def validate
  unless quantity && quantity >= 0
    errors.add(:quantity, "must be a non-negative value")
  end
  # avoid reload of order.inventory_units by using direct lookup
  unless Spree::Config[:allow_backorders]                               ||
         order   && InventoryUnit.order_id_equals(order).first.present? || 
         variant && quantity <= variant.on_hand                         
    errors.add(:quantity, " is too large-- stock on hand cannot cover requested quantity!")
  end
end