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ðŸ“ ..
ðŸ“ abstracts
ðŸ“ admin
ðŸ“ blocks
ðŸ“„ class-wc-ajax.php(114.64 KB)
ðŸ“„ class-wc-auth.php(12.69 KB)
ðŸ“„ class-wc-autoloader.php(3.13 KB)
ðŸ“„ class-wc-background-emailer.php(4.58 KB)
ðŸ“„ class-wc-background-updater.php(3.45 KB)
ðŸ“„ class-wc-breadcrumb.php(9.49 KB)
ðŸ“„ class-wc-cache-helper.php(11.17 KB)
ðŸ“„ class-wc-cart-fees.php(3.37 KB)
ðŸ“„ class-wc-cart-session.php(17.81 KB)
ðŸ“„ class-wc-cart-totals.php(28.25 KB)
ðŸ“„ class-wc-cart.php(66.4 KB)
ðŸ“„ class-wc-checkout.php(46.93 KB)
ðŸ“„ class-wc-cli.php(2.57 KB)
ðŸ“„ class-wc-comments.php(15.86 KB)
ðŸ“„ class-wc-countries.php(48.92 KB)
ðŸ“„ class-wc-coupon.php(37.88 KB)
ðŸ“„ class-wc-customer-download-log.php(3.37 KB)
ðŸ“„ class-wc-customer-download.php(10.34 KB)
ðŸ“„ class-wc-customer.php(29.68 KB)
ðŸ“„ class-wc-data-exception.php(1.29 KB)
ðŸ“„ class-wc-data-store.php(6.59 KB)
ðŸ“„ class-wc-datetime.php(2.26 KB)
ðŸ“„ class-wc-deprecated-action-hooks.php(6.59 KB)
ðŸ“„ class-wc-deprecated-filter-hooks.php(7.34 KB)
ðŸ“„ class-wc-discounts.php(35.04 KB)
ðŸ“„ class-wc-download-handler.php(28.38 KB)
ðŸ“„ class-wc-emails.php(25.09 KB)
ðŸ“„ class-wc-embed.php(4.18 KB)
ðŸ“„ class-wc-form-handler.php(44.65 KB)
ðŸ“„ class-wc-frontend-scripts.php(27.03 KB)
ðŸ“„ class-wc-geo-ip.php(30.41 KB)
ðŸ“„ class-wc-geolite-integration.php(1.99 KB)
ðŸ“„ class-wc-geolocation.php(10.44 KB)
ðŸ“„ class-wc-https.php(4.33 KB)
ðŸ“„ class-wc-install.php(100.99 KB)
ðŸ“„ class-wc-integrations.php(1.28 KB)
ðŸ“„ class-wc-log-levels.php(3.9 KB)
ðŸ“„ class-wc-logger.php(9.29 KB)
ðŸ“„ class-wc-meta-data.php(2.21 KB)
ðŸ“„ class-wc-order-factory.php(8.52 KB)
ðŸ“„ class-wc-order-item-coupon.php(4.08 KB)
ðŸ“„ class-wc-order-item-fee.php(8.85 KB)
ðŸ“„ class-wc-order-item-meta.php(5.8 KB)
ðŸ“„ class-wc-order-item-product.php(13.7 KB)
ðŸ“„ class-wc-order-item-shipping.php(7.85 KB)
ðŸ“„ class-wc-order-item-tax.php(6.49 KB)
ðŸ“„ class-wc-order-item.php(11.65 KB)
ðŸ“„ class-wc-order-query.php(2.55 KB)
ðŸ“„ class-wc-order-refund.php(5.63 KB)
ðŸ“„ class-wc-order.php(69.28 KB)
ðŸ“„ class-wc-payment-gateways.php(11.36 KB)
ðŸ“„ class-wc-payment-tokens.php(6.24 KB)
ðŸ“„ class-wc-post-data.php(20.89 KB)
ðŸ“„ class-wc-post-types.php(31.84 KB)
ðŸ“„ class-wc-privacy-background-process.php(1.67 KB)
ðŸ“„ class-wc-privacy-erasers.php(13.61 KB)
ðŸ“„ class-wc-privacy-exporters.php(14.69 KB)
ðŸ“„ class-wc-privacy.php(15.82 KB)
ðŸ“„ class-wc-product-attribute.php(6.97 KB)
ðŸ“„ class-wc-product-download.php(12.25 KB)
ðŸ“„ class-wc-product-external.php(4.84 KB)
ðŸ“„ class-wc-product-factory.php(3.58 KB)
ðŸ“„ class-wc-product-grouped.php(5.22 KB)
ðŸ“„ class-wc-product-query.php(2.18 KB)
ðŸ“„ class-wc-product-simple.php(2.64 KB)
ðŸ“„ class-wc-product-variable.php(22.07 KB)
ðŸ“„ class-wc-product-variation.php(16.87 KB)
ðŸ“„ class-wc-query.php(32.6 KB)
ðŸ“„ class-wc-rate-limiter.php(4 KB)
ðŸ“„ class-wc-regenerate-images-request.php(7.74 KB)
ðŸ“„ class-wc-regenerate-images.php(15.44 KB)
ðŸ“„ class-wc-register-wp-admin-settings.php(5.05 KB)
ðŸ“„ class-wc-rest-authentication.php(21.55 KB)
ðŸ“„ class-wc-rest-exception.php(276 B)
ðŸ“„ class-wc-session-handler.php(15.03 KB)
ðŸ“„ class-wc-shipping-rate.php(5.51 KB)
ðŸ“„ class-wc-shipping-zone.php(13.08 KB)
ðŸ“„ class-wc-shipping-zones.php(4.01 KB)
ðŸ“„ class-wc-shipping.php(11.57 KB)
ðŸ“„ class-wc-shortcodes.php(18.67 KB)
ðŸ“„ class-wc-structured-data.php(18.88 KB)
ðŸ“„ class-wc-tax.php(37.08 KB)
ðŸ“„ class-wc-template-loader.php(21.39 KB)
ðŸ“„ class-wc-tracker.php(37.42 KB)
ðŸ“„ class-wc-validation.php(5.79 KB)
ðŸ“„ class-wc-webhook.php(29.34 KB)
ðŸ“„ class-woocommerce.php(45.52 KB)
ðŸ“ cli
ðŸ“ customizer
ðŸ“ data-stores
ðŸ“ emails
ðŸ“ export
ðŸ“ gateways
ðŸ“ import
ðŸ“ integrations
ðŸ“ interfaces
ðŸ“ legacy
ðŸ“ libraries
ðŸ“ log-handlers
ðŸ“ payment-tokens
ðŸ“ product-usage
ðŸ“ queue
ðŸ“ react-admin
ðŸ“ rest-api
ðŸ“ shipping
ðŸ“ shortcodes
ðŸ“ theme-support
ðŸ“ tracks
ðŸ“ traits
ðŸ“ walkers
ðŸ“„ wc-account-functions.php(13.23 KB)
ðŸ“„ wc-attribute-functions.php(21.12 KB)
ðŸ“„ wc-cart-functions.php(19.9 KB)
ðŸ“„ wc-conditional-functions.php(13.92 KB)
ðŸ“„ wc-core-functions.php(80.68 KB)
ðŸ“„ wc-coupon-functions.php(2.75 KB)
ðŸ“„ wc-deprecated-functions.php(34.08 KB)
ðŸ“„ wc-formatting-functions.php(45.5 KB)
ðŸ“„ wc-notice-functions.php(8.02 KB)
ðŸ“„ wc-order-functions.php(38.93 KB)
ðŸ“„ wc-order-item-functions.php(5.03 KB)
ðŸ“„ wc-page-functions.php(8.3 KB)
ðŸ“„ wc-product-functions.php(53.13 KB)
ðŸ“„ wc-rest-functions.php(12.62 KB)
ðŸ“„ wc-stock-functions.php(16.64 KB)
ðŸ“„ wc-template-functions.php(123.9 KB)
ðŸ“„ wc-template-hooks.php(12.67 KB)
ðŸ“„ wc-term-functions.php(20.66 KB)
ðŸ“„ wc-update-functions.php(86.64 KB)
ðŸ“„ wc-user-functions.php(28.67 KB)
ðŸ“„ wc-webhook-functions.php(5.77 KB)
ðŸ“„ wc-widget-functions.php(2.01 KB)
ðŸ“ wccom-site
ðŸ“ widgets

Editing: wc-stock-functions.php

<?php
/**
 * WooCommerce Stock Functions
 *
 * Functions used to manage product stock levels.
 *
 * @package WooCommerce\Functions
 * @version 3.4.0
 */

defined( 'ABSPATH' ) || exit;

use Automattic\WooCommerce\Checkout\Helpers\ReserveStock;

/**
 * Update a product's stock amount.
 *
 * Uses queries rather than update_post_meta so we can do this in one query (to avoid stock issues).
 *
 * @since  3.0.0 this supports set, increase and decrease.
 *
 * @param  int|WC_Product $product        Product ID or product instance.
 * @param  int|null       $stock_quantity Stock quantity.
 * @param  string         $operation      Type of operation, allows 'set', 'increase' and 'decrease'.
 * @param  bool           $updating       If true, the product object won't be saved here as it will be updated later.
 * @return bool|int|null
 */
function wc_update_product_stock( $product, $stock_quantity = null, $operation = 'set', $updating = false ) {
	if ( ! is_a( $product, 'WC_Product' ) ) {
		$product = wc_get_product( $product );
	}

if ( ! $product ) {
		return false;
	}

if ( ! is_null( $stock_quantity ) && $product->managing_stock() ) {
		// Some products (variations) can have their stock managed by their parent. Get the correct object to be updated here.
		$product_id_with_stock = $product->get_stock_managed_by_id();
		$product_with_stock    = $product_id_with_stock !== $product->get_id() ? wc_get_product( $product_id_with_stock ) : $product;
		$data_store            = WC_Data_Store::load( 'product' );

// Fire actions to let 3rd parties know the stock is about to be changed.
		if ( $product_with_stock->is_type( 'variation' ) ) {
			// phpcs:disable WooCommerce.Commenting.CommentHooks.MissingSinceComment
			/** This action is documented in includes/data-stores/class-wc-product-data-store-cpt.php */
			do_action( 'woocommerce_variation_before_set_stock', $product_with_stock );
		} else {
			// phpcs:disable WooCommerce.Commenting.CommentHooks.MissingSinceComment
			/** This action is documented in includes/data-stores/class-wc-product-data-store-cpt.php */
			do_action( 'woocommerce_product_before_set_stock', $product_with_stock );
		}

// Update the database.
		$new_stock = $data_store->update_product_stock( $product_id_with_stock, $stock_quantity, $operation );

// Update the product object.
		$data_store->read_stock_quantity( $product_with_stock, $new_stock );

// If this is not being called during an update routine, save the product so stock status etc is in sync, and caches are cleared.
		if ( ! $updating ) {
			$product_with_stock->save();
		}

// Fire actions to let 3rd parties know the stock changed.
		if ( $product_with_stock->is_type( 'variation' ) ) {
			// phpcs:disable WooCommerce.Commenting.CommentHooks.MissingSinceComment
			/** This action is documented in includes/data-stores/class-wc-product-data-store-cpt.php */
			do_action( 'woocommerce_variation_set_stock', $product_with_stock );
		} else {
			// phpcs:disable WooCommerce.Commenting.CommentHooks.MissingSinceComment
			/** This action is documented in includes/data-stores/class-wc-product-data-store-cpt.php */
			do_action( 'woocommerce_product_set_stock', $product_with_stock );
		}

return $product_with_stock->get_stock_quantity();
	}
	return $product->get_stock_quantity();
}

/**
 * Update a product's stock status.
 *
 * @param int    $product_id Product ID.
 * @param string $status     Status.
 */
function wc_update_product_stock_status( $product_id, $status ) {
	$product = wc_get_product( $product_id );

if ( $product ) {
		$product->set_stock_status( $status );
		$product->save();
	}
}

/**
 * When a payment is complete, we can reduce stock levels for items within an order.
 *
 * @since 3.0.0
 * @param int $order_id Order ID.
 */
function wc_maybe_reduce_stock_levels( $order_id ) {
	$order = wc_get_order( $order_id );

if ( ! $order ) {
		return;
	}

$stock_reduced  = $order->get_data_store()->get_stock_reduced( $order_id );
	$trigger_reduce = apply_filters( 'woocommerce_payment_complete_reduce_order_stock', ! $stock_reduced, $order_id );

// Only continue if we're reducing stock.
	if ( ! $trigger_reduce ) {
		return;
	}

wc_reduce_stock_levels( $order );

// Ensure stock is marked as "reduced" in case payment complete or other stock actions are called.
	$order->get_data_store()->set_stock_reduced( $order_id, true );
}
add_action( 'woocommerce_payment_complete', 'wc_maybe_reduce_stock_levels' );
add_action( 'woocommerce_order_status_completed', 'wc_maybe_reduce_stock_levels' );
add_action( 'woocommerce_order_status_processing', 'wc_maybe_reduce_stock_levels' );
add_action( 'woocommerce_order_status_on-hold', 'wc_maybe_reduce_stock_levels' );

/**
 * When a payment is cancelled, restore stock.
 *
 * @since 3.0.0
 * @param int $order_id Order ID.
 */
function wc_maybe_increase_stock_levels( $order_id ) {
	$order = wc_get_order( $order_id );

if ( ! $order ) {
		return;
	}

$stock_reduced    = $order->get_data_store()->get_stock_reduced( $order_id );
	$trigger_increase = (bool) $stock_reduced;

// Only continue if we're increasing stock.
	if ( ! $trigger_increase ) {
		return;
	}

wc_increase_stock_levels( $order );

// Ensure stock is not marked as "reduced" anymore.
	$order->get_data_store()->set_stock_reduced( $order_id, false );
}
add_action( 'woocommerce_order_status_cancelled', 'wc_maybe_increase_stock_levels' );
add_action( 'woocommerce_order_status_pending', 'wc_maybe_increase_stock_levels' );

/**
 * Reduce stock levels for items within an order, if stock has not already been reduced for the items.
 *
 * @since 3.0.0
 * @param int|WC_Order $order_id Order ID or order instance.
 */
function wc_reduce_stock_levels( $order_id ) {
	if ( is_a( $order_id, 'WC_Order' ) ) {
		$order    = $order_id;
		$order_id = $order->get_id();
	} else {
		$order = wc_get_order( $order_id );
	}
	// We need an order, and a store with stock management to continue.
	if ( ! $order || 'yes' !== get_option( 'woocommerce_manage_stock' ) || ! apply_filters( 'woocommerce_can_reduce_order_stock', true, $order ) ) {
		return;
	}

$changes = array();

// Loop over all items.
	foreach ( $order->get_items() as $item ) {
		if ( ! $item->is_type( 'line_item' ) ) {
			continue;
		}

// Only reduce stock once for each item.
		$product            = $item->get_product();
		$item_stock_reduced = $item->get_meta( '_reduced_stock', true );

if ( $item_stock_reduced || ! $product || ! $product->managing_stock() ) {
			continue;
		}

/**
		 * Filter order item quantity.
		 *
		 * @param int|float             $quantity Quantity.
		 * @param WC_Order              $order    Order data.
		 * @param WC_Order_Item_Product $item Order item data.
		 */
		$qty       = apply_filters( 'woocommerce_order_item_quantity', $item->get_quantity(), $order, $item );
		$item_name = $product->get_formatted_name();
		$new_stock = wc_update_product_stock( $product, $qty, 'decrease' );

if ( is_wp_error( $new_stock ) ) {
			/* translators: %s item name. */
			$order->add_order_note( sprintf( __( 'Unable to reduce stock for item %s.', 'woocommerce' ), $item_name ) );
			continue;
		}

$item->add_meta_data( '_reduced_stock', $qty, true );
		$item->save();

$change    = array(
			'product' => $product,
			'from'    => $new_stock + $qty,
			'to'      => $new_stock,
		);
		$changes[] = $change;

/**
		 * Fires when stock reduced to a specific line item
		 *
		 * @param WC_Order_Item_Product $item Order item data.
		 * @param array $change  Change Details.
		 * @param WC_Order $order  Order data.
		 * @since 7.6.0
		 */
		do_action( 'woocommerce_reduce_order_item_stock', $item, $change, $order );
	}

wc_trigger_stock_change_notifications( $order, $changes );

do_action( 'woocommerce_reduce_order_stock', $order );
}

/**
 * After stock change events, triggers emails and adds order notes.
 *
 * @since 3.5.0
 * @param WC_Order $order order object.
 * @param array    $changes Array of changes.
 */
function wc_trigger_stock_change_notifications( $order, $changes ) {
	if ( empty( $changes ) ) {
		return;
	}

$order_notes     = array();
	$no_stock_amount = absint( get_option( 'woocommerce_notify_no_stock_amount', 0 ) );

foreach ( $changes as $change ) {
		$order_notes[]    = $change['product']->get_formatted_name() . ' ' . $change['from'] . '&rarr;' . $change['to'];
		$low_stock_amount = absint( wc_get_low_stock_amount( wc_get_product( $change['product']->get_id() ) ) );
		if ( $change['to'] <= $no_stock_amount ) {
			/**
			 * Action to signal that the value of 'stock_quantity' for a variation is about to change.
			 *
			 * @since 4.9
			 *
			 * @param int $product The variation whose stock is about to change.
			 */
			do_action( 'woocommerce_no_stock', wc_get_product( $change['product']->get_id() ) );
		} elseif ( $change['to'] <= $low_stock_amount ) {
			/**
			 * Action to signal that the value of 'stock_quantity' for a product is about to change.
			 *
			 * @since 4.9
			 *
			 * @param int $product The product whose stock is about to change.
			 */
			do_action( 'woocommerce_low_stock', wc_get_product( $change['product']->get_id() ) );
		}

if ( $change['to'] < 0 ) {
			/**
			 * Action fires when an item in an order is backordered.
			 *
			 * @since 3.0
			 *
			 * @param array $args {
			 *     @type WC_Product $product  The product that is on backorder.
			 *     @type int        $order_id The ID of the order.
			 *     @type int|float  $quantity The amount of product on backorder.
			 * }
			 */
			do_action(
				'woocommerce_product_on_backorder',
				array(
					'product'  => wc_get_product( $change['product']->get_id() ),
					'order_id' => $order->get_id(),
					'quantity' => abs( $change['from'] - $change['to'] ),
				)
			);
		}
	}

$order->add_order_note( __( 'Stock levels reduced:', 'woocommerce' ) . ' ' . implode( ', ', $order_notes ) );
}

/**
 * Check if a product's stock quantity has reached certain thresholds and trigger appropriate actions.
 *
 * This functionality was moved out of `wc_trigger_stock_change_notifications` in order to decouple it from orders,
 * since stock quantity can also be updated in other ways.
 *
 * @param WC_Product $product        The product whose stock level has changed.
 *
 * @return void
 */
function wc_trigger_stock_change_actions( $product ) {
	if ( true !== $product->get_manage_stock() ) {
		return;
	}

$no_stock_amount  = absint( get_option( 'woocommerce_notify_no_stock_amount', 0 ) );
	$low_stock_amount = absint( wc_get_low_stock_amount( $product ) );
	$stock_quantity   = $product->get_stock_quantity();

if ( $stock_quantity <= $no_stock_amount ) {
		/**
		 * Action fires when a product's stock quantity reaches the "no stock" threshold.
		 *
		 * @since 3.0
		 *
		 * @param WC_Product $product The product whose stock quantity has changed.
		 */
		do_action( 'woocommerce_no_stock', $product );
	} elseif ( $stock_quantity <= $low_stock_amount ) {
		/**
		 * Action fires when a product's stock quantity reaches the "low stock" threshold.
		 *
		 * @since 3.0
		 *
		 * @param WC_Product $product The product whose stock quantity has changed.
		 */
		do_action( 'woocommerce_low_stock', $product );
	}
}

/**
 * Increase stock levels for items within an order.
 *
 * @since 3.0.0
 * @param int|WC_Order $order_id Order ID or order instance.
 */
function wc_increase_stock_levels( $order_id ) {
	if ( is_a( $order_id, 'WC_Order' ) ) {
		$order    = $order_id;
		$order_id = $order->get_id();
	} else {
		$order = wc_get_order( $order_id );
	}

// We need an order, and a store with stock management to continue.
	if ( ! $order || 'yes' !== get_option( 'woocommerce_manage_stock' ) || ! apply_filters( 'woocommerce_can_restore_order_stock', true, $order ) ) {
		return;
	}

$changes = array();

// Loop over all items.
	foreach ( $order->get_items() as $item ) {
		if ( ! $item->is_type( 'line_item' ) ) {
			continue;
		}

// Only increase stock once for each item.
		$product            = $item->get_product();
		$item_stock_reduced = $item->get_meta( '_reduced_stock', true );

if ( ! $item_stock_reduced || ! $product || ! $product->managing_stock() ) {
			continue;
		}

$item_name = $product->get_formatted_name();
		$new_stock = wc_update_product_stock( $product, $item_stock_reduced, 'increase' );
		$old_stock = $new_stock - $item_stock_reduced;

if ( is_wp_error( $new_stock ) ) {
			/* translators: %s item name. */
			$order->add_order_note( sprintf( __( 'Unable to restore stock for item %s.', 'woocommerce' ), $item_name ) );
			continue;
		}

$item->delete_meta_data( '_reduced_stock' );
		$item->save();

$changes[] = $item_name . ' ' . $old_stock . '&rarr;' . $new_stock;

/**
		 * Fires when stock restored to a specific line item
		 *
		 * @since 9.1.0
		 * @param WC_Order_Item_Product $item Order item data.
		 * @param int $new_stock  New stock.
		 * @param int $old_stock Old stock.
		 * @param WC_Order $order  Order data.
		 */
		do_action( 'woocommerce_restore_order_item_stock', $item, $new_stock, $old_stock, $order );
	}

if ( $changes ) {
		$order->add_order_note( __( 'Stock levels increased:', 'woocommerce' ) . ' ' . implode( ', ', $changes ) );
	}

do_action( 'woocommerce_restore_order_stock', $order );
}

/**
 * See how much stock is being held in pending orders.
 *
 * @since 3.5.0
 * @param WC_Product $product Product to check.
 * @param integer    $exclude_order_id Order ID to exclude.
 * @return int
 */
function wc_get_held_stock_quantity( WC_Product $product, $exclude_order_id = 0 ) {
	/**
	 * Filter: woocommerce_hold_stock_for_checkout
	 * Allows enable/disable hold stock functionality on checkout.
	 *
	 * @since 4.3.0
	 * @param bool $enabled Default to true if managing stock globally.
	 */
	if ( ! apply_filters( 'woocommerce_hold_stock_for_checkout', wc_string_to_bool( get_option( 'woocommerce_manage_stock', 'yes' ) ) ) ) {
		return 0;
	}

$reserve_stock = new ReserveStock();
	return $reserve_stock->get_reserved_stock( $product, $exclude_order_id );
}

/**
 * Hold stock for an order.
 *
 * @throws ReserveStockException If reserve stock fails.
 *
 * @since 4.1.0
 * @param \WC_Order|int $order Order ID or instance.
 */
function wc_reserve_stock_for_order( $order ) {
	/**
	 * Filter: woocommerce_hold_stock_for_checkout
	 * Allows enable/disable hold stock functionality on checkout.
	 *
	 * @since @since 4.1.0
	 * @param bool $enabled Default to true if managing stock globally.
	 */
	if ( ! apply_filters( 'woocommerce_hold_stock_for_checkout', wc_string_to_bool( get_option( 'woocommerce_manage_stock', 'yes' ) ) ) ) {
		return;
	}

$order = $order instanceof WC_Order ? $order : wc_get_order( $order );

if ( $order ) {
		$reserve_stock = new ReserveStock();
		$reserve_stock->reserve_stock_for_order( $order );
	}
}
add_action( 'woocommerce_checkout_order_created', 'wc_reserve_stock_for_order' );

/**
 * Release held stock for an order.
 *
 * @since 4.3.0
 * @param \WC_Order|int $order Order ID or instance.
 */
function wc_release_stock_for_order( $order ) {
	/**
	 * Filter: woocommerce_hold_stock_for_checkout
	 * Allows enable/disable hold stock functionality on checkout.
	 *
	 * @since 4.3.0
	 * @param bool $enabled Default to true if managing stock globally.
	 */
	if ( ! apply_filters( 'woocommerce_hold_stock_for_checkout', wc_string_to_bool( get_option( 'woocommerce_manage_stock', 'yes' ) ) ) ) {
		return;
	}

$order = $order instanceof WC_Order ? $order : wc_get_order( $order );

if ( $order ) {
		$reserve_stock = new ReserveStock();
		$reserve_stock->release_stock_for_order( $order );
	}
}
add_action( 'woocommerce_checkout_order_exception', 'wc_release_stock_for_order' );
add_action( 'woocommerce_payment_complete', 'wc_release_stock_for_order', 11 );
add_action( 'woocommerce_order_status_cancelled', 'wc_release_stock_for_order', 11 );
add_action( 'woocommerce_order_status_completed', 'wc_release_stock_for_order', 11 );
add_action( 'woocommerce_order_status_processing', 'wc_release_stock_for_order', 11 );
add_action( 'woocommerce_order_status_on-hold', 'wc_release_stock_for_order', 11 );

/**
 * Return low stock amount to determine if notification needs to be sent
 *
 * Since 5.2.0, this function no longer redirects from variation to its parent product.
 * Low stock amount can now be attached to the variation itself and if it isn't, only
 * then we check the parent product, and if it's not there, then we take the default
 * from the store-wide setting.
 *
 * @param  WC_Product $product Product to get data from.
 * @since  3.5.0
 * @return int
 */
function wc_get_low_stock_amount( WC_Product $product ) {
	$low_stock_amount = $product->get_low_stock_amount();

if ( '' === $low_stock_amount && $product->is_type( 'variation' ) ) {
		$product          = wc_get_product( $product->get_parent_id() );
		$low_stock_amount = $product->get_low_stock_amount();
	}

if ( '' === $low_stock_amount ) {
		$low_stock_amount = get_option( 'woocommerce_notify_low_stock_amount', 2 );
	}

return (int) $low_stock_amount;
}

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