update users.ts and user controller to allow duplicate email and username

src/controllers/user.ts

@@ -14,6 +14,7 @@ import path from "path";
 import fileUpload from "express-fileupload";
 import { v4 as uuidv4 } from "uuid";
 import config from "../../config/stag.json";
+import { IsNull } from "typeorm";
 const log: Logger<ILogObj> = new Logger({
 	name: "[UserController]",
 	type: "pretty",
@@ -501,6 +502,28 @@ export class UserController {
 			data.email = param.email;
 			data.status = param.status;
 
+			const email = await OrmHelper.DB.getRepository(User).findOne({
+				where: {
+					email: param.email,
+					deleted_at: IsNull()
+				}
+			});
+
+			const username = await OrmHelper.DB.getRepository(User).findOne({
+				where: {
+					username: param.username,
+					deleted_at: IsNull()
+				}
+			});
+
+			if (email) {
+				throw { message: "Email already exists" };
+			}
+
+			if (username) {
+				throw { message: "Username already exists" };
+			}
+
 			if (param.employee_id && param.employee_id != "") {
 				const employee = await OrmHelper.DB.manager.getRepository(HrmsEmployee).findOneByOrFail({ id: param.employee_id });
 				data.employee = employee;