fix(next-nest): if role exists will throw RoleExists error

template/nest-next/libs/shared/src/.generate/i18n.generated.ts

@@ -18,6 +18,7 @@ export type I18nTranslations = {
         };
         "role": {
             "NOT_FOUND": string;
+            "EXISTS": string;
         };
     };
     "validation": {

template/nest-next/src/i18n/enUS/exception.json

@@ -10,6 +10,7 @@
     "NOT_FOUND": "Menu Not Found"
   },
   "role":{
-    "NOT_FOUND": "Role not found"
+    "NOT_FOUND": "Role not found",
+    "EXISTS": "Role {name} Exists"
   }
 }

template/nest-next/src/role/commands/create-role.command.ts

@@ -7,6 +7,7 @@ import { EntityManager } from '@mikro-orm/core';
 import { RedisService } from '@liaoliaots/nestjs-redis';
 import Redis from 'ioredis';
 import { roleTotal } from '@app/shared';
+import { RoleExistsError } from '../errors';
 
 export class CreateRoleRequest extends CreateRoleDto {}
 
@@ -31,8 +32,12 @@ export class CreateRoleHandler implements ICommandHandler<CreateRole> {
   ) {
     this.redis = this.redisService.getOrThrow();
   }
-  execute({ data }: CreateRole): Promise<RoleId> {
-    const { name, permissionIds, menuIds=[] } = data;
+  async execute({ data }: CreateRole): Promise<RoleId> {
+    const { name, permissionIds = [], menuIds = [] } = data;
+    const exists = await this.role.findOne({ name });
+    if (exists) {
+      throw new RoleExistsError(name);
+    }
     const role = this.role.create({ name });
     const rolePermission = permissionIds.map((id) => {
       return this.permission.create({ roleId: role.id, permissionId: id });

template/nest-next/src/role/errors/index.ts

@@ -1 +1,2 @@
 export { RoleNotFound } from './role-not-found';
+export { RoleExistsError } from './role-exists';

template/nest-next/src/role/errors/role-exists.ts

@@ -0,0 +1,12 @@
+import { DomainError } from '@app/shared';
+import { HttpStatus } from '@nestjs/common';
+
+export class RoleExistsError extends DomainError {
+  constructor(name: string) {
+    super({
+      code: HttpStatus.BAD_REQUEST,
+      message: `exception.role.EXISTS`,
+      params: { name },
+    });
+  }
+}