Class: Effective::Cart

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

Instance Method Summary collapse

Instance Method Details

#add(item, quantity: 1) ⇒ Object Also known as: add_to_cart 



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# File 'app/models/effective/cart.rb', line 14

def add(item, quantity: 1)
  raise 'expecting an acts_as_purchasable object' unless item.kind_of?(ActsAsPurchasable)

  existing_item = cart_items.where(purchasable_id: item.id, purchasable_type: item.class.name).first

  if item.quantity_enabled? && (quantity + (existing_item.quantity rescue 0)) > item.quantity_remaining
    raise EffectiveOrders::SoldOutException, "#{item.title} is sold out"
    return
  end

  if existing_item.present?
    existing_item.update_attributes(quantity: existing_item.quantity + quantity)
  else
    cart_items.create(cart: self, purchasable_id: item.id, purchasable_type: item.class.name, quantity: quantity)
  end
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/models/effective/cart.rb', line 49

def empty?
  size == 0
end

#find(item) ⇒ Object 



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# File 'app/models/effective/cart.rb', line 41

def find(item)
  cart_items.to_a.find { |cart_item| cart_item == item || cart_item.purchasable == item }
end

#includes?(item) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/models/effective/cart.rb', line 37

def includes?(item)
  find(item).present?
end

#remove(obj) ⇒ Object Also known as: remove_from_cart 



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# File 'app/models/effective/cart.rb', line 32

def remove(obj)
  (cart_items.find(cart_item) || cart_item).try(:destroy)
end

#size ⇒ Object 



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# File 'app/models/effective/cart.rb', line 45

def size
  cart_items.size
end

#subtotal ⇒ Object Also known as: total 



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# File 'app/models/effective/cart.rb', line 53

def subtotal
  cart_items.map { |ci| ci.subtotal }.sum
end