Grouped products are grouping simple products, everyone knows. In somewhere of my custom module, I need to know if there's a simple product in my cart (quote) "added by grouped product" or by "itself"?
I know there's a table sales_flat_quote_item_option. Item records doesn't differ in sales_flat_quote_item but in that option table there's some difference. When you add your simple product with "grouped product add action", it creates a row including info_buyRequest in sales_flat_quote_item_option table.
I want to determine that record programatically.
Thanks for any help/directive.