To printing commerceItem details

Question

Hi All,
Please check below and make it clear which logic should be used in which senario to print commerce item details:
[1]     <droplet bean="ForEach">
     <param name="array" value="/atg/commerce/Shoppingcart.current.commerceitems">
     <param name="elementName" value="item">
     <oparam name="output">
     </oparam>
     </droplet>
[2]     <dsp:droplet name="ForEach">
          <dsp:param name="array" bean="CartModifierFormHandler.order.ShippingGroups"/>
          <dsp:param name="elementName" value="ShippingGroup"/>
          <dsp:oparam name="output">
               <dsp:droplet name="ForEach">
                    <dsp:param name="array" param="ShippingGroup.CommerceItemRelationships"/>
                    <dsp:param name="elementName" value="CIRelationship"/>
                    <dsp:oparam name="output">
                    CIRelationship.commerceItem.* etc...
               </dsp:oparam>
               </dsp:droplet>
          </dsp:oparam>
          </dsp:droplet>
[3]     <droplet bean="ForEach">
          <param name="array" value="/atg/commerce/CartModifierFormHandler.order.commerceItems">
          <param name="elementName" value="item">
          <oparam name="output">
          </oparam>
     </droplet>
-RMishra

Answer 1

It looks to me that we got carried away by looking at CartModifierFormHandler, but option 1 and 2 are two different approaches.
Option 1 and 3 are same, so the reason for CartModifierFormHandler holds good.
But Option 2 is used when we have multiple shipping groups and you want to display the items against the shipping group.
For example:
Shipping Group1(Address #1)
Item A details - quantity X
item B details - quantity Y
Shipping Group2(Address #2)
item A - quantity Z
item D - quantity W
A slight improvement to option 2 is using ShoppingCart instead of CartModiferFormHandler.
Peace
Shaik