chore: add cart links to promotions/product (#7428)

packages/core/types/src/http/promotion/common.ts

@@ -0,0 +1,12 @@
+import { ApplicationMethodTypeValues } from "../../promotion"
+
+export interface BasePromotion {
+  id: string
+  code?: string
+  is_automatic?: boolean
+  application_method?: {
+    type?: ApplicationMethodTypeValues
+    value?: number
+    currency_code?: string
+  }
+}

packages/core/types/src/http/promotion/index.ts

@@ -1 +1,2 @@
 export * from "./admin"
+export * from "./store"

packages/core/types/src/http/promotion/store.ts

@@ -0,0 +1,3 @@
+import { BasePromotion } from "./common"
+
+export interface StorePromotion extends BasePromotion {}

packages/medusa/src/api/store/carts/query-config.ts

@@ -23,9 +23,19 @@ export const defaultStoreCartFields = [
   "original_shipping_tax_total",
   "original_shipping_tax_subtotal",
   "original_shipping_total",
+  "promotions.id",
+  "promotions.code",
+  "promotions.is_automatic",
+  "promotions.application_method.value",
+  "promotions.application_method.type",
+  "promotions.application_method.currency_code",
   "items.id",
   "items.variant_id",
   "items.product_id",
+  "items.product.categories.id",
+  "items.product.tags.id",
+  "items.product.collection_id",
+  "items.product.type_id",
   "items.product_title",
   "items.product_description",
   "items.product_subtitle",
@@ -47,6 +57,7 @@ export const defaultStoreCartFields = [
   "items.tax_lines.provider_id",
   "items.adjustments.id",
   "items.adjustments.code",
+  "items.adjustments.promotion_id",
   "items.adjustments.amount",
   "customer.id",
   "customer.email",

packages/modules/link-modules/src/definitions/cart-promotion.ts

@@ -29,26 +29,21 @@ export const CartPromotion: ModuleJoinerConfig = {
       serviceName: Modules.PROMOTION,
       primaryKey: "id",
       foreignKey: "promotion_id",
-      alias: "promotion",
+      alias: "promotions",
     },
   ],
   extends: [
     {
       serviceName: Modules.CART,
+      fieldAlias: {
+        promotions: "cart_link.promotions",
+      },
       relationship: {
         serviceName: LINKS.CartPromotion,
         primaryKey: "cart_id",
         foreignKey: "id",
         alias: "cart_link",
-      },
-    },
-    {
-      serviceName: Modules.PROMOTION,
-      relationship: {
-        serviceName: LINKS.CartPromotion,
-        primaryKey: "promotion_id",
-        foreignKey: "id",
-        alias: "promotion_link",
+        isList: true,
       },
     },
   ],

packages/modules/link-modules/src/definitions/readonly/index.ts

@@ -3,6 +3,7 @@ export * from "./cart-product"
 export * from "./cart-region"
 export * from "./cart-sales-channel"
 export * from "./inventory-level-stock-location"
+export * from "./line-item-adjustment-promotion"
 export * from "./order-customer"
 export * from "./order-product"
 export * from "./order-sales-channel"

packages/modules/link-modules/src/definitions/readonly/line-item-adjustment-promotion.ts

@@ -0,0 +1,18 @@
+import { Modules } from "@medusajs/modules-sdk"
+import { ModuleJoinerConfig } from "@medusajs/types"
+
+export const LineItemAdjustmentPromotion: ModuleJoinerConfig = {
+  isLink: true,
+  isReadOnlyLink: true,
+  extends: [
+    {
+      serviceName: Modules.CART,
+      relationship: {
+        serviceName: Modules.PROMOTION,
+        primaryKey: "id",
+        foreignKey: "promotion_id",
+        alias: "promotion",
+      },
+    },
+  ],
+}