Class: ActiveCart::OrderTotalCollection

Inherits:
Array
  • Object
show all
Defined in:
lib/active_cart/order_total_collection.rb

Instance Method Summary collapse

Constructor Details

#initialize(cart, *seed) ⇒ OrderTotalCollection

Returns a new OrderTotalCollection

You must pass in an cart object.

collection = OrderTotalCollection.new(@cart)

You can also pass in an array of order_total objects

cart = ActiveCart::Cart.instance
collection = OrderTotalCollection.new(cart, order_total_1, order_total_2)  # => [ order_total_1, order_total_2 ]



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# File 'lib/active_cart/order_total_collection.rb', line 14

def initialize(cart, *seed)
  @cart = cart
  seed.each do |s|
    self.push(s)
  end
end

Instance Method Details

#+(order_total_collection) ⇒ Object

Concatenation.Returns a new OrderTotalCollection built by concatenating the two OrderTotalCollections together to produce a third OrderTotalCollection. (The supplied collection can be a regular array)

[ order_total_1, order_total_2, order_total_3 ] + [ order_total_4, order_total_5 ] #=> [ order_total_1, order_total_2, order_total_3, order_total_4, order_total_5 ]



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# File 'lib/active_cart/order_total_collection.rb', line 25

def +(order_total_collection)
  tmp = OrderTotalCollection.new(@cart)
  self.each { |s| tmp << s }
  order_total_collection.each { |s| tmp << s }
  tmp
end

#insert_after(index, *items) ⇒ Object

Inserts the items after the item that is currently at the supplied index

items = [ order_total_1, order_total_2 ]
items.insert_after(0, order_total_2) #=> [ order_total_1, order_total_3, order_total_2 ]



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# File 'lib/active_cart/order_total_collection.rb', line 49

def insert_after(index, *items)
  items.each_with_index do |item, i|
    self.insert(index + i + 1, item)
  end
  self
end

#insert_before(index, *items) ⇒ Object

Inserts the items before the item that is currently at the supplied index

items = [ order_total_1, order_total_2 ]
items.insert_before(1, order_total_2) #=> [ order_total_1, order_total_3, order_total_2 ]



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# File 'lib/active_cart/order_total_collection.rb', line 37

def insert_before(index, *items)
  items.reverse.each do |item|
    self.insert(index, item)
  end
  self
end

#move(from, to) ⇒ Object

Allows you to reorder the order totals. Moves the item at index from to index to

items = [ order_total_1, order_total_2 ]
items.move(0, 1) #=> [ order_total_2, order_total_1 ]



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# File 'lib/active_cart/order_total_collection.rb', line 61

def move(from, to)
  index = self.delete_at(from)
  self.insert(to, index)
end

#total ⇒ Object

Calculates the total price applied by all the order_total objects.

order_total_collection = OrderTotalCollection.new(nil, order_total_1, order_total_2)
order_total_collection.total # => 10



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# File 'lib/active_cart/order_total_collection.rb', line 71

def total
  self.inject(0) { |t, calculator| t + (calculator.active? ? calculator.price(@cart) : 0) }
end