import { Entity, PrimaryGeneratedColumn, Column, CreateDateColumn, UpdateDateColumn, OneToMany } from 'typeorm';
import { ApiProperty } from '@midwayjs/swagger';
import { Product } from './product.entity';
import { CategoryAttribute } from './category_attribute.entity';

@Entity('category')
export class Category {
  @ApiProperty({ description: 'ID' })
  @PrimaryGeneratedColumn()
  id: number;

  @ApiProperty({ description: '分类显示名称' })
  @Column()
  title: string;

  @ApiProperty({ description: '分类中文名称' })
  @Column({ nullable: true })
  titleCN: string;

  @ApiProperty({ description: '分类唯一标识' })
  @Column({ unique: true })
  name: string;

  @ApiProperty({ description: '排序' })
  @Column({ default: 0 })
  sort: number;

  @OneToMany(() => Product, product => product.category)
  products: Product[];

  @OneToMany(() => CategoryAttribute, categoryAttribute => categoryAttribute.category)
  attributes: CategoryAttribute[];

  @CreateDateColumn()
  createdAt: Date;

  @UpdateDateColumn()
  updatedAt: Date;
}