feat(medusa): Trim discount code on insert and retrieve (#2369)

packages/medusa/src/models/discount.ts

@@ -6,7 +6,7 @@ import {
   JoinColumn,
   JoinTable,
   ManyToMany,
-  ManyToOne
+  ManyToOne,
 } from "typeorm"
 import { DbAwareColumn, resolveDbType } from "../utils/db-aware-column"
 
@@ -78,9 +78,11 @@ export class Discount extends SoftDeletableEntity {
   metadata: Record<string, unknown>
 
   @BeforeInsert()
-  private upperCaseCode(): void {
-    this.code = this.code.toUpperCase()
-    if (this.id) return
+  private upperCaseCodeAndTrim(): void {
+    this.code = this.code.toUpperCase().trim()
+    if (this.id) {
+      return
+    }
 
     this.id = generateEntityId(this.id, "disc")
   }

packages/medusa/src/services/__tests__/discount.js

@@ -1,6 +1,6 @@
 import { IdMap, MockManager, MockRepository } from "medusa-test-utils"
-import DiscountService from "../discount"
 import { FlagRouter } from "../../utils/flag-router"
+import DiscountService from "../discount"
 
 const featureFlagRouter = new FlagRouter({})
 
@@ -74,7 +74,7 @@ describe("DiscountService", () => {
 
       expect(discountRepository.create).toHaveBeenCalledTimes(1)
       expect(discountRepository.create).toHaveBeenCalledWith({
-        code: "TEST",
+        code: "test",
         rule: expect.anything(),
         regions: [{ id: IdMap.getId("france") }],
       })
@@ -106,7 +106,7 @@ describe("DiscountService", () => {
 
       expect(discountRepository.create).toHaveBeenCalledTimes(1)
       expect(discountRepository.create).toHaveBeenCalledWith({
-        code: "TEST",
+        code: "test",
         rule: expect.anything(),
         regions: [{ id: IdMap.getId("france") }],
         starts_at: new Date("03/14/2021"),
@@ -140,7 +140,7 @@ describe("DiscountService", () => {
 
       expect(discountRepository.create).toHaveBeenCalledTimes(1)
       expect(discountRepository.create).toHaveBeenCalledWith({
-        code: "TEST",
+        code: "test",
         rule: expect.anything(),
         regions: [{ id: IdMap.getId("france") }],
         starts_at: new Date("03/14/2021"),
@@ -225,6 +225,17 @@ describe("DiscountService", () => {
         },
       })
     })
+
+    it("successfully trims, uppdercases, and finds discount by code", async () => {
+      await discountService.retrieveByCode(" 10%Off ")
+      expect(discountRepository.findOne).toHaveBeenCalledTimes(1)
+      expect(discountRepository.findOne).toHaveBeenCalledWith({
+        where: {
+          code: "10%OFF",
+          is_dynamic: false,
+        },
+      })
+    })
   })
 
   describe("update", () => {

packages/medusa/src/services/discount.ts

@@ -212,8 +212,6 @@ class DiscountService extends TransactionBaseService {
         const discountRule = ruleRepo.create(validatedRule)
         const createdDiscountRule = await ruleRepo.save(discountRule)
 
-        discount.code = discount.code!.toUpperCase()
-
         const created: Discount = discountRepo.create(
           discount as DeepPartial<Discount>
         )
@@ -277,7 +275,7 @@ class DiscountService extends TransactionBaseService {
     const manager = this.manager_
     const discountRepo = manager.getCustomRepository(this.discountRepository_)
 
-    const normalizedCode = discountCode.toUpperCase()
+    const normalizedCode = discountCode.toUpperCase().trim()
 
     let query = buildQuery({ code: normalizedCode, is_dynamic: false }, config)
     let discount = await discountRepo.findOne(query)