cart.rb in active_cart-0.0.8

- old
+ new

@@ -76,13 +76,20 @@
     #   @cart.add_to_cart(item_2, 4)
     #   @cart.quantity => 100
     #   @cart[0].size # => 7
     #   @cart[1].size # => 4
     #
+    # Callbacks:
+    #
+    # Calls the storage engines before_add_to_cart(item, quantity) and after_add_to_cart(item, quantity) methods (if they exist). If before_add_to_cart returns false, the add will be halted.
+    # Calls the items before_add_to_item(quantity) and after_add_to_cart(quantity) methods (if they exist). If before_add_to_cart returns false, the add will be halted.
+    #
     def add_to_cart(item, quantity = 1)
       return false unless item.before_add_to_cart(quantity) if item.respond_to?(:before_add_to_cart)
+      return false unless @storage_engine.before_add_to_cart(item, quantity) if @storage_engine.respond_to?(:before_add_to_cart)
       @storage_engine.add_to_cart(item, quantity)
+      @storage_engine.after_add_to_cart(item, quantity) if @storage_engine.respond_to?(:after_add_to_cart)
       item.after_add_to_cart(quantity) if item.respond_to?(:after_add_to_cart)
     end
 
     # Removes an item from the cart (identified by the id of the item). If the supplied quantity is greater than equal to the number in the cart, the item will be removed, otherwise the quantity will simply be decremented by the supplied amount
     #
@@ -91,13 +98,20 @@
     #   @cart.remove_from_cart(item, 3)
     #   @cart[0].quantity # => 2
     #   @cart.remove_from_cart(item, 2)
     #   @cart[0] # => nil
     #
+    # Callbacks:
+    #
+    # Calls the storage engines before_remove_from_cart(item, quantity) and after_remove_from_cart(item, quantity) methods (if they exist). If before_remove_from_cart returns false, the remove will be halted.
+    # Calls the items before_remove_from_item(quantity) and after_remove_from_cart(quantity) methods (if they exist). If before_remove_from_cart returns false, the remove will be halted.
+    #
     def remove_from_cart(item, quantity = 1)
       return false unless item.before_remove_from_cart(quantity) if item.respond_to?(:before_remove_from_cart)
+      return false unless @storage_engine.before_remove_from_cart(item, quantity) if @storage_engine.respond_to?(:before_remove_from_cart)
       @storage_engine.remove_from_cart(item, quantity)
+      @storage_engine.after_remove_from_cart(item, quantity) if @storage_engine.respond_to?(:after_remove_from_cart)
       item.after_remove_from_cart(quantity) if item.respond_to?(:after_remove_from_cart)
     end
     
     # Returns the total of the cart. This includes all the order_total calculations
     #
@@ -109,31 +123,16 @@
     #
     def state
       storage_engine.state
     end
 
-    # Transitions to the cart's :shopping state
-    def continue_shopping!
-      storage_engine.continue_shopping!
-    end
-
-    # Transitions to the cart's :checkout state
-    def checkout!
-      storage_engine.checkout!
-    end
-
-    # Transitions to the cart's :verifying_payment state
-    def check_payment!
-      storage_engine.check_payment!
-    end
-
-    # Transitions to the cart's :successful state
-    def payment_successful!
-      storage_engine.payment_successful!
-    end
-
-    # Transitions to the cart's :failed state
-    def payment_failed!
-      storage_engine.payment_failed!
+    # :nodoc
+    def method_missing(symbol, *args)
+      # This allows developers to add extra aasm event transaction, and still allow them to called from the cart
+      if @storage_engine.class.aasm_events.keys.include?(symbol.to_s[0..-2].to_sym)
+        @storage_engine.send(symbol)
+      else
+        super
+      end
     end
   end
 end