On-hand inventory is tracked using the
Spree::StockItem model. A stock item
tracks stock at a single
If you only track stock at one stock location, then every
your store has one corresponding
Spree::StockItem object. If you track stock
at two stock locations, then every
Spree::Variant in your store has two
Spree::StockItems: one for each
count_on_hand value that represents the number of
items you have in stock.
Spree::StockItem objects have the following attributes:
stock_location_id: The ID for the
Spree::StockLocationwhere the stock item is located.
variant_id: The ID for the
Spree::Variantthat this stock item represents.
count_on_hand: The number of units currently in inventory. See Count on hand for more information.
backorderable: Sets whether the stock item should be backorderable .
deleted_at: A timestamp that logs when this stock item was deleted from inventory. Otherwise, the value is
Administrators can manage the "Count On Hand" value for every product they sell on their store.
count_on_hand value changes whenever a
occurs. For example, if one unit of a product is sold the
decrease by one.
Spree::StockMovement object logs the increase or decrease of the
count_on_hand value, administrators can also edit the count on hand from the
Whenever an administrator updates the count on hand, they are discarding the old
value completely. So, if a stock item's
5, when the
administrator changes the value to
20, they are creating a
Spree::StockMovement with a value of
See the Stock movements article for more information.
backorderable, then customers can continue to order
it after the product is sold out. When a sold out product continues to sell, the
count_on_hand becomes a negative integer.
For example, if a customer orders five backorderable items and its
-5, the customer can still check out successfully.
state value of
created for the five items.
Spree::Shipment(s) associated with the backordered items cannot be shipped
until the stock has been replenished. Once the item is in stock again, each
backordered inventory unit's
state value is changed from
on_hand and the shipment becomes shippable.
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