问NestJS with TypeOrm:如何使用@BeforeInsert和@BeforeUpdate保存身份验证信息？

EN

import {
    Column,
    BaseEntity,
    PrimaryGeneratedColumn,
    BeforeInsert,
    BeforeUpdate
} from "typeorm";

import { IsOptional, IsNumber, IsDate, IsString } from "class-validator";

export class CrudEntity extends BaseEntity {
    @PrimaryGeneratedColumn()
    @IsOptional()
    @IsNumber()
    id?: number;

    @Column({ nullable: true, default: null })
    @IsString()
    @IsOptional()
    scope?: string;

    @Column({ nullable: true, default: null })
    @IsNumber()
    @IsOptional()
    client?: number;

    @Column({ nullable: true, default: null })
    @IsNumber()
    @IsOptional()
    user?: number;

    @Column({ type: "timestamp", default: () => "CURRENT_TIMESTAMP" })
    @IsDate()
    @IsOptional()
    created?: Date;

    @Column({ nullable: true, default: null })
    @IsNumber()
    @IsOptional()
    createdBy?: number;

    @Column({ type: "timestamp", nullable: true, default: null })
    @IsDate()
    @IsOptional()
    modified?: Date;

    @Column({ nullable: true, default: null })
    @IsNumber()
    @IsOptional()
    modifiedBy?: number;

    @BeforeInsert()
    public beforeInsert() {
        this.setClient();
        this.created = new Date();

        // @TODO Get info from JWT
        this.createdBy = null;
    }

    @BeforeUpdate()
    public beforeUpdate() {
        this.setClient();
        this.modified = new Date();

        // @TODO Get info from JWT
        this.modifiedBy = null;
    }

    public setClient() {
        // @TODO Get info from JWT
        this.scope = null;
        this.client = null;
    }
}