I am using Drupal 8/Commerce 2. How do I limit the quantity in the cart to one item so that users can't order more than one item per order.
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3Possible duplicate of Drupal Commerce Shopping cart limit– DarvanenCommented Jan 17, 2018 at 4:50
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2 Answers
Drupal 8 / Commerce have field "Default quantity to add to cart", so you can add default quantity for product is 1 and hide it from product page. After that user can't change quantity of products. Problem is solved!
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2this does NOT stop the user from adding another product with quantity 1 ... so problem NOT solved ... Commented Jan 17, 2018 at 7:48
Views >> Cart form >> Remove field... (order_items: Order Item) Order item: Quantity text field (Quantity)
This was a editable quantity field.
You can now add (order_items: Order Item) Order item: Quantity (Quantity) Which is a display only version of the quantity field.
For your Order item type >> manage display >> purchased entity >> rendered as cart.
The same item can still be added 1 at a time to the cart. To best solve solve this problem it would depend on your situation.
(1) Is your product a 'one off' unique item? then best solved by a stock strategy -or- (2) Is only one item of a certain sku allowed in a cart -or- (3) Must each sku in a cart be unique?
