created the file upload module

backend/package.json

@@ -27,9 +27,12 @@
     "@nestjs/platform-express": "^10.0.0",
     "@nestjs/swagger": "^7.3.0",
     "@nestjs/typeorm": "^10.0.2",
+    "@types/multer": "^2.0.0",
+    "@types/uuid": "^10.0.0",
     "class-transformer": "^0.5.1",
     "class-validator": "^0.14.0",
     "json2csv": "^6.0.0-alpha.2",
+    "multer": "^2.0.2",
     "nestjs-i18n": "^10.5.1",
     "pdfkit": "^0.17.2",
     "pg": "^8.11.3",

backend/src/app.module.ts

@@ -1,5 +1,6 @@
 import { Module } from '@nestjs/common';
 import { ConfigModule, ConfigService } from '@nestjs/config';
+import { TypeOrmModule } from '@nestjs/typeorm';
 import { AppController } from './app.controller';
 import { AppService } from './app.service';
 import { AssetCategoriesModule } from './asset-categories/asset-categories.module';
@@ -25,7 +26,14 @@ import { SearchModule } from './search/search.module';
         username: configService.get('DB_USERNAME', 'postgres'),
         password: configService.get('DB_PASSWORD', 'password'),
         database: configService.get('DB_DATABASE', 'manage_assets'),
-        entities: [AssetCategory, Department, User],
+        entities: [
+          AssetCategory,
+          Department,
+          User,
+          FileUpload,
+          Asset,
+          Supplier,
+        ],
         synchronize: configService.get('NODE_ENV') !== 'production', // Only for development
       }),
       inject: [ConfigService],

backend/src/assets/entity/asset.entity.ts → backend/src/assets/entities/assest.entity.ts

@@ -2,49 +2,59 @@ import {
   Entity,
   PrimaryGeneratedColumn,
   Column,
+  ManyToOne,
+  OneToMany,
   CreateDateColumn,
   UpdateDateColumn,
-  ManyToOne,
   JoinColumn,
 } from 'typeorm';
 import { Supplier } from '../../suppliers/entities/supplier.entity';
-import { Department } from '../../departments/entities/department.entity';
-import { Category } from '../../categories/entities/category.entity';
+import { Department } from '../../departments/department.entity';
+// import { Category } from '../../categories/entities/category.entity';
+import { FileUpload } from '../../file-uploads/entities/file-upload.entity';
 
 @Entity('assets')
 export class Asset {
-  @PrimaryGeneratedColumn()
-  id: number;
+  @PrimaryGeneratedColumn('uuid')
+  id: string;
 
   @Column({ unique: true })
   serialNumber: string;
 
+  @Column()
+  name: string;
+
+  @Column({ type: 'decimal', precision: 12, scale: 2, nullable: true })
+  purchaseCost?: number;
+
   @Column({ type: 'date' })
   purchaseDate: Date;
 
   @Column({ type: 'date', nullable: true })
   warrantyEnd?: Date;
 
-  @ManyToOne(() => Supplier, { nullable: false })
+  @Column({ type: 'text', nullable: true })
+  description?: string;
+
+  @Column({ default: true })
+  isActive: boolean;
+
+  // Relationships
+  @ManyToOne(() => Supplier, (supplier) => supplier.files, { nullable: true })
   @JoinColumn({ name: 'supplier_id' })
-  supplier: Supplier;
+  supplier?: Supplier;
 
   @ManyToOne(() => Department, { nullable: true })
   @JoinColumn({ name: 'assigned_department_id' })
   assignedDepartment?: Department;
 
-  @ManyToOne(() => Category, { nullable: false })
-  @JoinColumn({ name: 'category_id' })
-  category: Category;
-
-  @Column({ type: 'decimal', precision: 12, scale: 2, nullable: true })
-  purchaseCost?: number;
-
-  @Column({ type: 'text', nullable: true })
-  description?: string;
+  // This should be uncommented when the category entity is created
+  //   @ManyToOne(() => Category, { nullable: false })
+  //   @JoinColumn({ name: 'category_id' })
+  //   category: Category;
 
-  @Column({ default: true })
-  isActive: boolean;
+  @OneToMany(() => FileUpload, (fileUpload) => fileUpload.asset)
+  files: FileUpload[];
 
   @CreateDateColumn()
   createdAt: Date;

backend/src/file-uploads/dto/create-file-upload.dto.ts

@@ -0,0 +1,19 @@
+import { IsEnum, IsOptional, IsString, IsUUID } from 'class-validator';
+import { FileCategory } from '../entities/file-upload.entity';
+
+export class CreateFileUploadDto {
+  @IsEnum(FileCategory)
+  category: FileCategory;
+
+  @IsString()
+  @IsOptional()
+  description?: string;
+
+  @IsUUID()
+  @IsOptional()
+  assetId?: string;
+
+  @IsUUID()
+  @IsOptional()
+  supplierId?: string;
+}