fix: change the role refrence in database

src/modules/users/entities/role.entity.ts

@@ -1,5 +1,6 @@
-import { BaseEntity, Column, Entity } from "typeorm";
+import { Column, Entity } from "typeorm";
 
+import { BaseEntity } from "../../../common/entities/base.entity";
 import { RoleEnum } from "../enums/role.enum";
 
 @Entity()

src/modules/users/entities/user.entity.ts

@@ -1,4 +1,4 @@
-import { Column, Entity, OneToOne } from "typeorm";
+import { Column, Entity, JoinColumn, OneToOne } from "typeorm";
 
 import { Role } from "./role.entity";
 import { BaseEntity } from "../../../common/entities/base.entity";
@@ -26,6 +26,7 @@ export class User extends BaseEntity {
   @Column({ type: "varchar", length: 100 })
   nationalCode: string;
 
-  @OneToOne(() => Role, { eager: true, cascade: true, onDelete: "SET NULL" })
+  @JoinColumn()
+  @OneToOne(() => Role, { eager: true, cascade: true, onDelete: "RESTRICT", nullable: false })
   role: Role;
 }