feat(medusa): add or remove categories from products (#3114)

* wip

* chore: fix issues with join table

* chore: fix issues

* chore: fix ordering issue on random failing test

* chore: revert table name

* chore: added oas for category

* chore: update categories for a product

* chore: add remove category test

* chore: added changeset

* chore: address review comments

* Apply suggestions from code review

Co-authored-by: Philip Korsholm <88927411+pKorsholm@users.noreply.github.com>

Co-authored-by: Philip Korsholm <88927411+pKorsholm@users.noreply.github.com>

packages/medusa/src/models/product-category.ts

@@ -56,11 +56,11 @@ export class ProductCategory extends SoftDeletableEntity {
   @JoinTable({
     name: "product_category_product",
     joinColumn: {
-      name: "product_id",
+      name: "product_category_id",
       referencedColumnName: "id",
     },
     inverseJoinColumn: {
-      name: "product_category_id",
+      name: "product_id",
       referencedColumnName: "id",
     },
   })
@@ -122,6 +122,12 @@ export class ProductCategory extends SoftDeletableEntity {
  *   parent_category:
  *     description: A product category object. Available if the relation `parent_category` is expanded.
  *     type: object
+ *   products:
+ *     description: products associated with category. Available if the relation `products` is expanded.
+ *     type: array
+ *     items:
+ *       type: object
+ *       description: A product object.
  *   created_at:
  *     type: string
  *     description: "The date with timezone at which the resource was created."

packages/medusa/src/models/product.ts

@@ -82,11 +82,11 @@ export class Product extends SoftDeletableEntity {
   @JoinTable({
     name: "product_category_product",
     joinColumn: {
-      name: "product_category_id",
+      name: "product_id",
       referencedColumnName: "id",
     },
     inverseJoinColumn: {
-      name: "product_id",
+      name: "product_category_id",
       referencedColumnName: "id",
     },
   })
@@ -320,6 +320,12 @@ export class Product extends SoftDeletableEntity {
  *     items:
  *       type: object
  *       description: A sales channel object.
+ *   categories:
+ *     description: The product's associated categories. Available if the relation `categories` is expanded.
+ *     type: array
+ *     items:
+ *       type: object
+ *       description: A category object.
  *   created_at:
  *     type: string
  *     description: "The date with timezone at which the resource was created."