Class: Opensteam::ShoppingCart::Cart

Inherits:
Object
  • Object
show all
Defined in:
lib/opensteam/shopping_cart.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Cart

intialize items array



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# File 'lib/opensteam/shopping_cart.rb', line 195

def initialize
  @items = []
end

Instance Attribute Details

#items ⇒ Object

cart_items



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# File 'lib/opensteam/shopping_cart.rb', line 191

def items
  @items
end

Instance Method Details

#add(yamlid) ⇒ Object

add an item to cart or increment its quantity



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# File 'lib/opensteam/shopping_cart.rb', line 223

def add( yamlid )
  item = get( :yamlid => yamlid )
  if item.nil?
    @items << CartItem.new( yamlid )
    return true
  else
    return item.incr
  end
end

#del(opts = {}) ⇒ Object

delete item from cart (:cart_item_id or :yamlid )



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# File 'lib/opensteam/shopping_cart.rb', line 253

def del( opts = {} )
  if opts.has_key?( :yamlid )
    @items.delete( get( :yamlid => opts[:yamlid] ) )
  elsif opts.has_key?( :cart_item_id )
    @items.delete_at( opts[:cart_item_id].to_i )
  end
end

#get(opts = {}) ⇒ Object

get item from cart

get( :cart_itemd_id => 1 ) # get item by internal array id
get( :yamlid => 3 ) # get item by Inventory-id



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# File 'lib/opensteam/shopping_cart.rb', line 205

def get( opts = {} )

  if opts.has_key? :yamlid
    @items.each do |v|
      return v if v.yamlid == opts[:yamlid]
    end
					
  elsif opts.has_key? :cart_item_id
    return @items[ opts[:cart_item_id].to_i ]
  end
				
  return nil
		
end

#set_quantity(id, q) ⇒ Object

set quantity for item (by internal array-id)



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# File 'lib/opensteam/shopping_cart.rb', line 236

def set_quantity( id, q )
  item = @items[ id.to_i ]
				
  return nil if item.nil?
				
  q = q.to_i
  if q == 0
    @items.delete_at( id.to_i )
  elsif q > 0
    item.quantity = ( item.inventory.storage < q ) ? item.inventory.storage : q 
  end
				
  item
end

#total_price ⇒ Object

calculate total price



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# File 'lib/opensteam/shopping_cart.rb', line 264

def total_price
  @items.collect { |x| x.price * x.quantity }.inject(&:+)
end