feat: Payment module package setup (#6059)

packages/payment/src/models/index.ts

@@ -0,0 +1 @@
+export { default as Payment } from "./payment"

packages/payment/src/models/payment.ts

@@ -0,0 +1,40 @@
+import {
+  BeforeCreate,
+  Entity,
+  OnInit,
+  PrimaryKey,
+  Property,
+} from "@mikro-orm/core"
+
+import { generateEntityId } from "@medusajs/utils"
+
+@Entity({ tableName: "payment" })
+export default class Payment {
+  @PrimaryKey({ columnType: "text" })
+  id: string
+
+  @Property({
+    onCreate: () => new Date(),
+    columnType: "timestamptz",
+    defaultRaw: "now()",
+  })
+  created_at: Date
+
+  @Property({
+    onCreate: () => new Date(),
+    onUpdate: () => new Date(),
+    columnType: "timestamptz",
+    defaultRaw: "now()",
+  })
+  updated_at: Date
+
+  @BeforeCreate()
+  onCreate() {
+    this.id = generateEntityId(this.id, "pay")
+  }
+
+  @OnInit()
+  onInit() {
+    this.id = generateEntityId(this.id, "pay")
+  }
+}