feat: Add decimal digits and rounding info to currencies (#6991)

packages/currency/integration-tests/__tests__/currency-module-service.spec.ts

@@ -19,10 +19,12 @@ moduleIntegrationTestRunner({
               expect.objectContaining({
                 code: "cad",
                 name: "Canadian Dollar",
+                decimal_digits: 2,
               }),
               expect.objectContaining({
                 code: "usd",
                 name: "US Dollar",
+                decimal_digits: 2,
               }),
             ])
           )
@@ -116,7 +118,7 @@ moduleIntegrationTestRunner({
             {},
             {
               take: 1,
-              select: ["code"],
+              select: ["code", "rounding"],
             }
           )
 
@@ -126,6 +128,8 @@ moduleIntegrationTestRunner({
           expect(serialized).toEqual([
             {
               code: "aed",
+              rounding: 0,
+              raw_rounding: expect.any(Object),
             },
           ])
         })

packages/currency/src/migrations/.snapshot-medusa-currency.json

@@ -41,6 +41,35 @@
           "primary": false,
           "nullable": false,
           "mappedType": "text"
+        },
+        "decimal_digits": {
+          "name": "decimal_digits",
+          "type": "int",
+          "unsigned": false,
+          "autoincrement": false,
+          "primary": false,
+          "nullable": false,
+          "default": "0",
+          "mappedType": "integer"
+        },
+        "rounding": {
+          "name": "rounding",
+          "type": "numeric",
+          "unsigned": false,
+          "autoincrement": false,
+          "primary": false,
+          "nullable": false,
+          "default": "0",
+          "mappedType": "decimal"
+        },
+        "raw_rounding": {
+          "name": "raw_rounding",
+          "type": "jsonb",
+          "unsigned": false,
+          "autoincrement": false,
+          "primary": false,
+          "nullable": false,
+          "mappedType": "json"
         }
       },
       "name": "currency",

packages/currency/src/migrations/InitialSetup20240228133303.ts

@@ -2,8 +2,24 @@ import { Migration } from "@mikro-orm/migrations"
 
 export class InitialSetup20240228133303 extends Migration {
   async up(): Promise<void> {
+    const currencyTables = await this.execute(
+      "select * from information_schema.tables where table_name = 'currency' and table_schema = 'public'"
+    )
+
+    if (currencyTables.length > 0) {
+      // This is so we can still run the api tests, remove completely once that is not needed
+      this.addSql(
+        `alter table "currency" add column "decimal_digits" int not null default 0;`
+      )
+      this.addSql(
+        `alter table "currency" add column "rounding" numeric not null default 0;`
+      )
+      this.addSql(`alter table "currency" add column "raw_rounding" jsonb;`)
+    }
+
     this.addSql(`create table if not exists "currency" 
     ("code" text not null, "symbol" text not null, "symbol_native" text not null, "name" text not null, 
+    "decimal_digits" int not null default 0, "rounding" numeric not null default 0, "raw_rounding" jsonb not null,
     constraint "currency_pkey" primary key ("code"));`)
   }
 }

packages/currency/src/models/currency.ts

@@ -1,3 +1,5 @@
+import { BigNumberRawValue } from "@medusajs/types"
+import { BigNumber, MikroOrmBigNumberProperty } from "@medusajs/utils"
 import { Entity, PrimaryKey, Property } from "@mikro-orm/core"
 
 @Entity({ tableName: "currency" })
@@ -13,6 +15,15 @@ class Currency {
 
   @Property({ columnType: "text" })
   name: string
+
+  @Property({ columnType: "int", default: 0 })
+  decimal_digits: number
+
+  @MikroOrmBigNumberProperty({ default: 0 })
+  rounding: BigNumber | number
+
+  @Property({ columnType: "jsonb" })
+  raw_rounding: BigNumberRawValue
 }
 
 export default Currency