完成权限角色守卫

tone-page-server/src/role/services/role.service.ts

@@ -0,0 +1,26 @@
+import { Injectable } from "@nestjs/common";
+import { InjectRepository } from "@nestjs/typeorm";
+import { Role } from "../entities/role.entity";
+import { In, Repository } from "typeorm";
+
+@Injectable()
+export class RoleService {
+
+    constructor(
+        @InjectRepository(Role)
+        private readonly roleRepository: Repository<Role>,
+    ) { }
+
+    async findRoleNamesByRoleIds(roleIds: string[]): Promise<string[]> {
+        const roles = await this.findRolesByRoleIds(roleIds);
+        return roles.map(role => role.name);
+    }
+
+    async findRolesByRoleIds(roleIds: string[]): Promise<Role[]> {
+        return this.roleRepository.find({
+            where: {
+                id: In(roleIds),
+            }
+        })
+    }
+}