Last active
August 29, 2015 14:05
-
-
Save agemooij/9601660e169ffa57bfe7 to your computer and use it in GitHub Desktop.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| def addItem(newItem: BasketItem): BasketState = { | |
| copy( | |
| items.foldRight((false, List.empty[BasketItem])) { | |
| case (item, (_, out)) if (item.matchesProductAndSizeOf(newItem)) ⇒ (true, item.incrementNumberBy(newItem.numberOfProducts) :: out) | |
| case (item, (didSomethingMatch, out)) ⇒ (didSomethingMatch, item :: out) | |
| } match { | |
| case (false, _) ⇒ newItem :: items | |
| case (true, modifiedItems) ⇒ modifiedItems | |
| } | |
| ) | |
| } |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| case class BasketState(items: List[BasketItem] = Nil) { | |
| def addItem(newItem: BasketItem): BasketState = { | |
| // if (items.exists(item ⇒ item.productNumber == newItem.productNumber && item.sizeCode == newItem.sizeCode)) { | |
| // copy( | |
| // items.map { item ⇒ | |
| // if (item.productNumber == newItem.productNumber && item.sizeCode == newItem.sizeCode) | |
| // item.copy(numberOfProducts = item.numberOfProducts + 1) | |
| // else item | |
| // } | |
| // ) | |
| // } else { | |
| // copy(newItem :: items) | |
| // } | |
| // copy( | |
| // items.foldRight((false, List.empty[BasketItem])) { (item, out) ⇒ | |
| // if (item.productNumber == newItem.productNumber && item.sizeCode == newItem.sizeCode) | |
| // (true, item.copy(numberOfProducts = item.numberOfProducts + 1) :: out._2) | |
| // else (false, item :: out._2) | |
| // } match { | |
| // case (false, _) ⇒ newItem :: items | |
| // case (true, modifiedItems) ⇒ modifiedItems | |
| // } | |
| // ) | |
| copy( | |
| items.foldRight((false, List.empty[BasketItem])) { | |
| case (item, (_, out)) if (item.productNumber == newItem.productNumber && item.sizeCode == newItem.sizeCode) ⇒ (true, item.copy(numberOfProducts = item.numberOfProducts + newItem.numberOfProducts) :: out) | |
| case (item, (bool, out)) ⇒ (bool, item :: out) | |
| } match { | |
| case (false, _) ⇒ newItem :: items | |
| case (true, modifiedItems) ⇒ modifiedItems | |
| } | |
| ) | |
| // copy( | |
| // items.foldRight((false, List.empty[BasketItem])) { | |
| // case (BasketItem(newItem.productNumber, newItem.sizeCode, numberOfProducts, product), (_, out)) ⇒ (true, BasketItem(newItem.productNumber, newItem.sizeCode, numberOfProducts + newItem.numberOfProducts, product) :: out) | |
| // case (item, (bool, out)) ⇒ (bool, item :: out) | |
| // } match { | |
| // case (false, _) ⇒ newItem :: items | |
| // case (true, modifiedItems) ⇒ modifiedItems | |
| // } | |
| // ) | |
| } | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment